mirror of
git://sourceware.org/git/lvm2.git
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2c6a2b6e86
Add profilable configurable setting for vdo pool header size, that is used as 'extra' empty space at the front and end of vdo-pool device to avoid having a disk in the system the may have same data is real vdo LV. For some conversion cases however we may need to allow using '0' header size. TODO: in this case we may eventually avoid adding 'linear' mapping layer in future - but this requires further modification over lvm code base.
2371 lines
104 KiB
Plaintext
2371 lines
104 KiB
Plaintext
# This is an example configuration file for the LVM2 system.
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# It contains the default settings that would be used if there was no
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# @DEFAULT_SYS_DIR@/lvm.conf file.
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#
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# Refer to 'man lvm.conf' for further information including the file layout.
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#
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# Refer to 'man lvm.conf' for information about how settings configured in
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# this file are combined with built-in values and command line options to
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# arrive at the final values used by LVM.
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#
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# Refer to 'man lvmconfig' for information about displaying the built-in
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# and configured values used by LVM.
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#
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# If a default value is set in this file (not commented out), then a
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# new version of LVM using this file will continue using that value,
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# even if the new version of LVM changes the built-in default value.
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#
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# To put this file in a different directory and override @DEFAULT_SYS_DIR@ set
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# the environment variable LVM_SYSTEM_DIR before running the tools.
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#
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# N.B. Take care that each setting only appears once if uncommenting
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# example settings in this file.
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# Configuration section config.
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# How LVM configuration settings are handled.
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config {
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# Configuration option config/checks.
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# If enabled, any LVM configuration mismatch is reported.
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# This implies checking that the configuration key is understood by
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# LVM and that the value of the key is the proper type. If disabled,
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# any configuration mismatch is ignored and the default value is used
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# without any warning (a message about the configuration key not being
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# found is issued in verbose mode only).
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checks = 1
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# Configuration option config/abort_on_errors.
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# Abort the LVM process if a configuration mismatch is found.
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abort_on_errors = 0
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# Configuration option config/profile_dir.
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# Directory where LVM looks for configuration profiles.
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profile_dir = "@DEFAULT_SYS_DIR@/@DEFAULT_PROFILE_SUBDIR@"
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}
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# Configuration section devices.
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# How LVM uses block devices.
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devices {
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# Configuration option devices/dir.
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# Directory in which to create volume group device nodes.
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# Commands also accept this as a prefix on volume group names.
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# This configuration option is advanced.
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dir = "/dev"
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# Configuration option devices/scan.
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# Directories containing device nodes to use with LVM.
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# This configuration option is advanced.
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scan = [ "/dev" ]
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# Configuration option devices/obtain_device_list_from_udev.
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# Obtain the list of available devices from udev.
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# This avoids opening or using any inapplicable non-block devices or
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# subdirectories found in the udev directory. Any device node or
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# symlink not managed by udev in the udev directory is ignored. This
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# setting applies only to the udev-managed device directory; other
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# directories will be scanned fully. LVM needs to be compiled with
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# udev support for this setting to apply.
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obtain_device_list_from_udev = 1
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# Configuration option devices/external_device_info_source.
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# Select an external device information source.
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# Some information may already be available in the system and LVM can
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# use this information to determine the exact type or use of devices it
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# processes. Using an existing external device information source can
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# speed up device processing as LVM does not need to run its own native
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# routines to acquire this information. For example, this information
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# is used to drive LVM filtering like MD component detection, multipath
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# component detection, partition detection and others.
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#
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# Accepted values:
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# none
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# No external device information source is used.
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# udev
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# Reuse existing udev database records. Applicable only if LVM is
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# compiled with udev support.
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#
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external_device_info_source = "none"
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# Configuration option devices/hints.
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# Use a local file to remember which devices have PVs on them.
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# Some commands will use this as an optimization to reduce device
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# scanning, and will only scan the listed PVs. Removing the hint file
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# will cause lvm to generate a new one. Disable hints if PVs will
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# be copied onto devices using non-lvm commands, like dd.
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#
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# Accepted values:
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# all
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# Use all hints.
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# none
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# Use no hints.
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#
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# This configuration option has an automatic default value.
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# hints = "all"
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# Configuration option devices/preferred_names.
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# Select which path name to display for a block device.
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# If multiple path names exist for a block device, and LVM needs to
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# display a name for the device, the path names are matched against
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# each item in this list of regular expressions. The first match is
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# used. Try to avoid using undescriptive /dev/dm-N names, if present.
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# If no preferred name matches, or if preferred_names are not defined,
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# the following built-in preferences are applied in order until one
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# produces a preferred name:
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# Prefer names with path prefixes in the order of:
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# /dev/mapper, /dev/disk, /dev/dm-*, /dev/block.
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# Prefer the name with the least number of slashes.
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# Prefer a name that is a symlink.
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# Prefer the path with least value in lexicographical order.
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#
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# Example
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# preferred_names = [ "^/dev/mpath/", "^/dev/mapper/mpath", "^/dev/[hs]d" ]
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#
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# This configuration option does not have a default value defined.
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# Configuration option devices/use_devicesfile.
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# Enable or disable the use of a devices file.
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# When enabled, lvm will only use devices that
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# are lised in the devices file. A devices file will
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# be used, regardless of this setting, when the --devicesfile
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# option is set to a specific file name.
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# This configuration option has an automatic default value.
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# use_devicesfile = 0
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# Configuration option devices/devicesfile.
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# The name of the system devices file, listing devices that LVM should use.
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# This should not be used to select a non-system devices file.
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# The --devicesfile option is intended for alternative devices files.
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# This configuration option has an automatic default value.
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# devicesfile = "system.devices"
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# Configuration option devices/search_for_devnames.
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# Look outside of the devices file for missing devname entries.
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# A devname entry is used for a device that does not have a stable
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# device id, e.g. wwid, so the unstable device name is used as
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# the device id. After reboot, or if the device is reattached,
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# the device name may change, in which case lvm will not find
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# the expected PV on the device listed in the devices file.
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# This setting controls whether lvm will search other devices,
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# outside the devices file, to look for the missing PV on a
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# renamed device. If "none", lvm will not look at other devices,
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# and the PV may appear to be missing. If "auto", lvm will look
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# at other devices, but only those that are likely to have the PV.
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# If "all", lvm will look at all devices on the system.
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# This configuration option has an automatic default value.
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# search_for_devnames = "auto"
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# Configuration option devices/filter.
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# Limit the block devices that are used by LVM commands.
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# This is a list of regular expressions used to accept or reject block
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# device path names. Each regex is delimited by a vertical bar '|'
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# (or any character) and is preceded by 'a' to accept the path, or
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# by 'r' to reject the path. The first regex in the list to match the
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# path is used, producing the 'a' or 'r' result for the device.
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# When multiple path names exist for a block device, if any path name
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# matches an 'a' pattern before an 'r' pattern, then the device is
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# accepted. If all the path names match an 'r' pattern first, then the
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# device is rejected. Unmatching path names do not affect the accept
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# or reject decision. If no path names for a device match a pattern,
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# then the device is accepted. Be careful mixing 'a' and 'r' patterns,
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# as the combination might produce unexpected results (test changes.)
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# Run vgscan after changing the filter to regenerate the cache.
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#
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# Example
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# Accept every block device:
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# filter = [ "a|.*|" ]
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# Reject the cdrom drive:
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# filter = [ "r|/dev/cdrom|" ]
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# Work with just loopback devices, e.g. for testing:
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# filter = [ "a|loop|", "r|.*|" ]
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# Accept all loop devices and ide drives except hdc:
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# filter = [ "a|loop|", "r|/dev/hdc|", "a|/dev/ide|", "r|.*|" ]
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# Use anchors to be very specific:
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# filter = [ "a|^/dev/hda8$|", "r|.*|" ]
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#
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# This configuration option has an automatic default value.
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# filter = [ "a|.*|" ]
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# Configuration option devices/global_filter.
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# Limit the block devices that are used by LVM system components.
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# Because devices/filter may be overridden from the command line, it is
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# not suitable for system-wide device filtering, e.g. udev.
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# Use global_filter to hide devices from these LVM system components.
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# The syntax is the same as devices/filter. Devices rejected by
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# global_filter are not opened by LVM.
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# This configuration option has an automatic default value.
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# global_filter = [ "a|.*|" ]
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# Configuration option devices/types.
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# List of additional acceptable block device types.
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# These are of device type names from /proc/devices, followed by the
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# maximum number of partitions.
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#
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# Example
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# types = [ "fd", 16 ]
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#
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# This configuration option is advanced.
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# This configuration option does not have a default value defined.
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# Configuration option devices/sysfs_scan.
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# Restrict device scanning to block devices appearing in sysfs.
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# This is a quick way of filtering out block devices that are not
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# present on the system. sysfs must be part of the kernel and mounted.)
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sysfs_scan = 1
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# Configuration option devices/scan_lvs.
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# Scan LVM LVs for layered PVs, allowing LVs to be used as PVs.
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# When 1, LVM will detect PVs layered on LVs, and caution must be
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# taken to avoid a host accessing a layered VG that may not belong
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# to it, e.g. from a guest image. This generally requires excluding
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# the LVs with device filters. Also, when this setting is enabled,
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# every LVM command will scan every active LV on the system (unless
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# filtered), which can cause performance problems on systems with
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# many active LVs. When this setting is 0, LVM will not detect or
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# use PVs that exist on LVs, and will not allow a PV to be created on
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# an LV. The LVs are ignored using a built in device filter that
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# identifies and excludes LVs.
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scan_lvs = 0
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# Configuration option devices/multipath_component_detection.
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# Ignore devices that are components of DM multipath devices.
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multipath_component_detection = 1
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# Configuration option devices/md_component_detection.
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# Enable detection and exclusion of MD component devices.
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# An MD component device is a block device that MD uses as part
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# of a software RAID virtual device. When an LVM PV is created
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# on an MD device, LVM must only use the top level MD device as
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# the PV, and should ignore the underlying component devices.
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# In cases where the MD superblock is located at the end of the
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# component devices, it is more difficult for LVM to consistently
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# identify an MD component, see the md_component_checks setting.
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md_component_detection = 1
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# Configuration option devices/md_component_checks.
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# The checks LVM should use to detect MD component devices.
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# MD component devices are block devices used by MD software RAID.
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#
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# Accepted values:
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# auto
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# LVM will skip scanning the end of devices when it has other
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# indications that the device is not an MD component.
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# start
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# LVM will only scan the start of devices for MD superblocks.
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# This does not incur extra I/O by LVM.
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# full
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# LVM will scan the start and end of devices for MD superblocks.
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# This requires an extra read at the end of devices.
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#
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# This configuration option has an automatic default value.
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# md_component_checks = "auto"
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# Configuration option devices/fw_raid_component_detection.
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# Ignore devices that are components of firmware RAID devices.
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# LVM must use an external_device_info_source other than none for this
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# detection to execute.
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fw_raid_component_detection = 0
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# Configuration option devices/md_chunk_alignment.
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# Align the start of a PV data area with md device's stripe-width.
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# This applies if a PV is placed directly on an md device.
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# default_data_alignment will be overridden if it is not aligned
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# with the value detected for this setting.
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# This setting is overridden by data_alignment_detection,
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# data_alignment, and the --dataalignment option.
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md_chunk_alignment = 1
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# Configuration option devices/default_data_alignment.
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# Align the start of a PV data area with this number of MiB.
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# Set to 1 for 1MiB, 2 for 2MiB, etc. Set to 0 to disable.
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# This setting is overridden by data_alignment and the --dataalignment
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# option.
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# This configuration option has an automatic default value.
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# default_data_alignment = 1
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# Configuration option devices/data_alignment_detection.
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# Align the start of a PV data area with sysfs io properties.
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# The start of a PV data area will be a multiple of minimum_io_size or
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# optimal_io_size exposed in sysfs. minimum_io_size is the smallest
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# request the device can perform without incurring a read-modify-write
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# penalty, e.g. MD chunk size. optimal_io_size is the device's
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# preferred unit of receiving I/O, e.g. MD stripe width.
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# minimum_io_size is used if optimal_io_size is undefined (0).
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# If md_chunk_alignment is enabled, that detects the optimal_io_size.
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# default_data_alignment and md_chunk_alignment will be overridden
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# if they are not aligned with the value detected for this setting.
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# This setting is overridden by data_alignment and the --dataalignment
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# option.
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data_alignment_detection = 1
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# Configuration option devices/data_alignment.
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# Align the start of a PV data area with this number of KiB.
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# When non-zero, this setting overrides default_data_alignment.
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# Set to 0 to disable, in which case default_data_alignment
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# is used to align the first PE in units of MiB.
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# This setting is overridden by the --dataalignment option.
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data_alignment = 0
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# Configuration option devices/data_alignment_offset_detection.
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# Shift the start of an aligned PV data area based on sysfs information.
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# After a PV data area is aligned, it will be shifted by the
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# alignment_offset exposed in sysfs. This offset is often 0, but may
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# be non-zero. Certain 4KiB sector drives that compensate for windows
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# partitioning will have an alignment_offset of 3584 bytes (sector 7
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# is the lowest aligned logical block, the 4KiB sectors start at
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# LBA -1, and consequently sector 63 is aligned on a 4KiB boundary).
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# This setting is overridden by the --dataalignmentoffset option.
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data_alignment_offset_detection = 1
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# Configuration option devices/ignore_suspended_devices.
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# Ignore DM devices that have I/O suspended while scanning devices.
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# Otherwise, LVM waits for a suspended device to become accessible.
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# This should only be needed in recovery situations.
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ignore_suspended_devices = 0
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# Configuration option devices/ignore_lvm_mirrors.
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# Do not scan 'mirror' LVs to avoid possible deadlocks.
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# This avoids possible deadlocks when using the 'mirror' segment type.
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# This setting determines whether LVs using the 'mirror' segment type
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# are scanned for LVM labels. This affects the ability of mirrors to
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# be used as physical volumes. If this setting is enabled, it is
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# impossible to create VGs on top of mirror LVs, i.e. to stack VGs on
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# mirror LVs. If this setting is disabled, allowing mirror LVs to be
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# scanned, it may cause LVM processes and I/O to the mirror to become
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# blocked. This is due to the way that the mirror segment type handles
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# failures. In order for the hang to occur, an LVM command must be run
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# just after a failure and before the automatic LVM repair process
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# takes place, or there must be failures in multiple mirrors in the
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# same VG at the same time with write failures occurring moments before
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# a scan of the mirror's labels. The 'mirror' scanning problems do not
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# apply to LVM RAID types like 'raid1' which handle failures in a
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# different way, making them a better choice for VG stacking.
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ignore_lvm_mirrors = 1
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# Configuration option devices/require_restorefile_with_uuid.
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# Allow use of pvcreate --uuid without requiring --restorefile.
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require_restorefile_with_uuid = 1
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# Configuration option devices/pv_min_size.
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# Minimum size in KiB of block devices which can be used as PVs.
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# In a clustered environment all nodes must use the same value.
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# Any value smaller than 512KiB is ignored. The previous built-in
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# value was 512.
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pv_min_size = 2048
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# Configuration option devices/issue_discards.
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# Issue discards to PVs that are no longer used by an LV.
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# Discards are sent to an LV's underlying physical volumes when the LV
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# is no longer using the physical volumes' space, e.g. lvremove,
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# lvreduce. Discards inform the storage that a region is no longer
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# used. Storage that supports discards advertise the protocol-specific
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# way discards should be issued by the kernel (TRIM, UNMAP, or
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# WRITE SAME with UNMAP bit set). Not all storage will support or
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# benefit from discards, but SSDs and thinly provisioned LUNs
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# generally do. If enabled, discards will only be issued if both the
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# storage and kernel provide support.
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issue_discards = 0
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# Configuration option devices/allow_changes_with_duplicate_pvs.
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# Allow VG modification while a PV appears on multiple devices.
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# When a PV appears on multiple devices, LVM attempts to choose the
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# best device to use for the PV. If the devices represent the same
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# underlying storage, the choice has minimal consequence. If the
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# devices represent different underlying storage, the wrong choice
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# can result in data loss if the VG is modified. Disabling this
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# setting is the safest option because it prevents modifying a VG
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# or activating LVs in it while a PV appears on multiple devices.
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# Enabling this setting allows the VG to be used as usual even with
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# uncertain devices.
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allow_changes_with_duplicate_pvs = 0
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# Configuration option devices/allow_mixed_block_sizes.
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# Allow PVs in the same VG with different logical block sizes.
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# When allowed, the user is responsible to ensure that an LV is
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# using PVs with matching block sizes when necessary.
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allow_mixed_block_sizes = 0
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}
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# Configuration section allocation.
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# How LVM selects space and applies properties to LVs.
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allocation {
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# Configuration option allocation/cling_tag_list.
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# Advise LVM which PVs to use when searching for new space.
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# When searching for free space to extend an LV, the 'cling' allocation
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# policy will choose space on the same PVs as the last segment of the
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# existing LV. If there is insufficient space and a list of tags is
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# defined here, it will check whether any of them are attached to the
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# PVs concerned and then seek to match those PV tags between existing
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# extents and new extents.
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#
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# Example
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# Use the special tag "@*" as a wildcard to match any PV tag:
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# cling_tag_list = [ "@*" ]
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# LVs are mirrored between two sites within a single VG, and
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# PVs are tagged with either @site1 or @site2 to indicate where
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# they are situated:
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# cling_tag_list = [ "@site1", "@site2" ]
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#
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# This configuration option does not have a default value defined.
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# Configuration option allocation/maximise_cling.
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# Use a previous allocation algorithm.
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# Changes made in version 2.02.85 extended the reach of the 'cling'
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# policies to detect more situations where data can be grouped onto
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# the same disks. This setting can be used to disable the changes
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# and revert to the previous algorithm.
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maximise_cling = 1
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# Configuration option allocation/use_blkid_wiping.
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# Use blkid to detect and erase existing signatures on new PVs and LVs.
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# The blkid library can detect more signatures than the native LVM
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# detection code, but may take longer. LVM needs to be compiled with
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# blkid wiping support for this setting to apply. LVM native detection
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# code is currently able to recognize: MD device signatures,
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# swap signature, and LUKS signatures. To see the list of signatures
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# recognized by blkid, check the output of the 'blkid -k' command.
|
|
use_blkid_wiping = @DEFAULT_USE_BLKID_WIPING@
|
|
|
|
# Configuration option allocation/wipe_signatures_when_zeroing_new_lvs.
|
|
# Look for and erase any signatures while zeroing a new LV.
|
|
# The --wipesignatures option overrides this setting.
|
|
# Zeroing is controlled by the -Z/--zero option, and if not specified,
|
|
# zeroing is used by default if possible. Zeroing simply overwrites the
|
|
# first 4KiB of a new LV with zeroes and does no signature detection or
|
|
# wiping. Signature wiping goes beyond zeroing and detects exact types
|
|
# and positions of signatures within the whole LV. It provides a
|
|
# cleaner LV after creation as all known signatures are wiped. The LV
|
|
# is not claimed incorrectly by other tools because of old signatures
|
|
# from previous use. The number of signatures that LVM can detect
|
|
# depends on the detection code that is selected (see
|
|
# use_blkid_wiping.) Wiping each detected signature must be confirmed.
|
|
# When this setting is disabled, signatures on new LVs are not detected
|
|
# or erased unless the --wipesignatures option is used directly.
|
|
wipe_signatures_when_zeroing_new_lvs = 1
|
|
|
|
# Configuration option allocation/mirror_logs_require_separate_pvs.
|
|
# Mirror logs and images will always use different PVs.
|
|
# The default setting changed in version 2.02.85.
|
|
mirror_logs_require_separate_pvs = 0
|
|
|
|
# Configuration option allocation/raid_stripe_all_devices.
|
|
# Stripe across all PVs when RAID stripes are not specified.
|
|
# If enabled, all PVs in the VG or on the command line are used for
|
|
# raid0/4/5/6/10 when the command does not specify the number of
|
|
# stripes to use.
|
|
# This was the default behaviour until release 2.02.162.
|
|
# This configuration option has an automatic default value.
|
|
# raid_stripe_all_devices = 0
|
|
|
|
# Configuration option allocation/cache_pool_metadata_require_separate_pvs.
|
|
# Cache pool metadata and data will always use different PVs.
|
|
# This configuration option has an automatic default value.
|
|
# cache_pool_metadata_require_separate_pvs = 0
|
|
|
|
# Configuration option allocation/cache_metadata_format.
|
|
# Sets default metadata format for new cache.
|
|
#
|
|
# Accepted values:
|
|
# 0 Automatically detected best available format
|
|
# 1 Original format
|
|
# 2 Improved 2nd. generation format
|
|
#
|
|
# This configuration option has an automatic default value.
|
|
# cache_metadata_format = 0
|
|
|
|
# Configuration option allocation/cache_mode.
|
|
# The default cache mode used for new cache.
|
|
#
|
|
# Accepted values:
|
|
# writethrough
|
|
# Data blocks are immediately written from the cache to disk.
|
|
# writeback
|
|
# Data blocks are written from the cache back to disk after some
|
|
# delay to improve performance.
|
|
#
|
|
# This setting replaces allocation/cache_pool_cachemode.
|
|
# This configuration option has an automatic default value.
|
|
# cache_mode = "writethrough"
|
|
|
|
# Configuration option allocation/cache_policy.
|
|
# The default cache policy used for new cache volume.
|
|
# Since kernel 4.2 the default policy is smq (Stochastic multiqueue),
|
|
# otherwise the older mq (Multiqueue) policy is selected.
|
|
# This configuration option does not have a default value defined.
|
|
|
|
# Configuration section allocation/cache_settings.
|
|
# Settings for the cache policy.
|
|
# See documentation for individual cache policies for more info.
|
|
# This configuration section has an automatic default value.
|
|
# cache_settings {
|
|
# }
|
|
|
|
# Configuration option allocation/cache_pool_chunk_size.
|
|
# The minimal chunk size in KiB for cache pool volumes.
|
|
# Using a chunk_size that is too large can result in wasteful use of
|
|
# the cache, where small reads and writes can cause large sections of
|
|
# an LV to be mapped into the cache. However, choosing a chunk_size
|
|
# that is too small can result in more overhead trying to manage the
|
|
# numerous chunks that become mapped into the cache. The former is
|
|
# more of a problem than the latter in most cases, so the default is
|
|
# on the smaller end of the spectrum. Supported values range from
|
|
# 32KiB to 1GiB in multiples of 32.
|
|
# This configuration option does not have a default value defined.
|
|
|
|
# Configuration option allocation/cache_pool_max_chunks.
|
|
# The maximum number of chunks in a cache pool.
|
|
# For cache target v1.9 the recommended maximumm is 1000000 chunks.
|
|
# Using cache pool with more chunks may degrade cache performance.
|
|
# This configuration option does not have a default value defined.
|
|
|
|
# Configuration option allocation/thin_pool_metadata_require_separate_pvs.
|
|
# Thin pool metadata and data will always use different PVs.
|
|
# This configuration option has an automatic default value.
|
|
# thin_pool_metadata_require_separate_pvs = 0
|
|
|
|
# Configuration option allocation/thin_pool_crop_metadata.
|
|
# Older version of lvm2 cropped pool's metadata size to 15.81 GiB.
|
|
# This is slightly less then the actual maximum 15.88 GiB.
|
|
# For compatibility with older version and use of cropped size set to 1.
|
|
# This configuration option has an automatic default value.
|
|
# thin_pool_crop_metadata = 0
|
|
|
|
# Configuration option allocation/thin_pool_zero.
|
|
# Thin pool data chunks are zeroed before they are first used.
|
|
# Zeroing with a larger thin pool chunk size reduces performance.
|
|
# This configuration option has an automatic default value.
|
|
# thin_pool_zero = 1
|
|
|
|
# Configuration option allocation/thin_pool_discards.
|
|
# The discards behaviour of thin pool volumes.
|
|
#
|
|
# Accepted values:
|
|
# ignore
|
|
# nopassdown
|
|
# passdown
|
|
#
|
|
# This configuration option has an automatic default value.
|
|
# thin_pool_discards = "passdown"
|
|
|
|
# Configuration option allocation/thin_pool_chunk_size_policy.
|
|
# The chunk size calculation policy for thin pool volumes.
|
|
#
|
|
# Accepted values:
|
|
# generic
|
|
# If thin_pool_chunk_size is defined, use it. Otherwise, calculate
|
|
# the chunk size based on estimation and device hints exposed in
|
|
# sysfs - the minimum_io_size. The chunk size is always at least
|
|
# 64KiB.
|
|
# performance
|
|
# If thin_pool_chunk_size is defined, use it. Otherwise, calculate
|
|
# the chunk size for performance based on device hints exposed in
|
|
# sysfs - the optimal_io_size. The chunk size is always at least
|
|
# 512KiB.
|
|
#
|
|
# This configuration option has an automatic default value.
|
|
# thin_pool_chunk_size_policy = "generic"
|
|
|
|
# Configuration option allocation/zero_metadata.
|
|
# Zero whole metadata area before use with thin or cache pool.
|
|
# This configuration option has an automatic default value.
|
|
# zero_metadata = 1
|
|
|
|
# Configuration option allocation/thin_pool_chunk_size.
|
|
# The minimal chunk size in KiB for thin pool volumes.
|
|
# Larger chunk sizes may improve performance for plain thin volumes,
|
|
# however using them for snapshot volumes is less efficient, as it
|
|
# consumes more space and takes extra time for copying. When unset,
|
|
# lvm tries to estimate chunk size starting from 64KiB. Supported
|
|
# values are in the range 64KiB to 1GiB.
|
|
# This configuration option does not have a default value defined.
|
|
|
|
# Configuration option allocation/physical_extent_size.
|
|
# Default physical extent size in KiB to use for new VGs.
|
|
# This configuration option has an automatic default value.
|
|
# physical_extent_size = 4096
|
|
|
|
# Configuration option allocation/vdo_use_compression.
|
|
# Enables or disables compression when creating a VDO volume.
|
|
# Compression may be disabled if necessary to maximize performance
|
|
# or to speed processing of data that is unlikely to compress.
|
|
# This configuration option has an automatic default value.
|
|
# vdo_use_compression = 1
|
|
|
|
# Configuration option allocation/vdo_use_deduplication.
|
|
# Enables or disables deduplication when creating a VDO volume.
|
|
# Deduplication may be disabled in instances where data is not expected
|
|
# to have good deduplication rates but compression is still desired.
|
|
# This configuration option has an automatic default value.
|
|
# vdo_use_deduplication = 1
|
|
|
|
# Configuration option allocation/vdo_use_metadata_hints.
|
|
# Enables or disables whether VDO volume should tag its latency-critical
|
|
# writes with the REQ_SYNC flag. Some device mapper targets such as dm-raid5
|
|
# process writes with this flag at a higher priority.
|
|
# Default is enabled.
|
|
# This configuration option has an automatic default value.
|
|
# vdo_use_metadata_hints = 1
|
|
|
|
# Configuration option allocation/vdo_minimum_io_size.
|
|
# The minimum IO size for VDO volume to accept, in bytes.
|
|
# Valid values are 512 or 4096. The recommended and default value is 4096.
|
|
# This configuration option has an automatic default value.
|
|
# vdo_minimum_io_size = 4096
|
|
|
|
# Configuration option allocation/vdo_block_map_cache_size_mb.
|
|
# Specifies the amount of memory in MiB allocated for caching block map
|
|
# pages for VDO volume. The value must be a multiple of 4096 and must be
|
|
# at least 128MiB and less than 16TiB. The cache must be at least 16MiB
|
|
# per logical thread. Note that there is a memory overhead of 15%.
|
|
# This configuration option has an automatic default value.
|
|
# vdo_block_map_cache_size_mb = 128
|
|
|
|
# Configuration option allocation/vdo_block_map_period.
|
|
# The speed with which the block map cache writes out modified block map pages.
|
|
# A smaller era length is likely to reduce the amount time spent rebuilding,
|
|
# at the cost of increased block map writes during normal operation.
|
|
# The maximum and recommended value is 16380; the minimum value is 1.
|
|
# This configuration option has an automatic default value.
|
|
# vdo_block_map_period = 16380
|
|
|
|
# Configuration option allocation/vdo_check_point_frequency.
|
|
# The default check point frequency for VDO volume.
|
|
# This configuration option has an automatic default value.
|
|
# vdo_check_point_frequency = 0
|
|
|
|
# Configuration option allocation/vdo_use_sparse_index.
|
|
# Enables sparse indexing for VDO volume.
|
|
# This configuration option has an automatic default value.
|
|
# vdo_use_sparse_index = 0
|
|
|
|
# Configuration option allocation/vdo_index_memory_size_mb.
|
|
# Specifies the amount of index memory in MiB for VDO volume.
|
|
# The value must be at least 256MiB and at most 1TiB.
|
|
# This configuration option has an automatic default value.
|
|
# vdo_index_memory_size_mb = 256
|
|
|
|
# Configuration option allocation/vdo_slab_size_mb.
|
|
# Specifies the size in MiB of the increment by which a VDO is grown.
|
|
# Using a smaller size constrains the total maximum physical size
|
|
# that can be accommodated. Must be a power of two between 128MiB and 32GiB.
|
|
# This configuration option has an automatic default value.
|
|
# vdo_slab_size_mb = 2048
|
|
|
|
# Configuration option allocation/vdo_ack_threads.
|
|
# Specifies the number of threads to use for acknowledging
|
|
# completion of requested VDO I/O operations.
|
|
# The value must be at in range [0..100].
|
|
# This configuration option has an automatic default value.
|
|
# vdo_ack_threads = 1
|
|
|
|
# Configuration option allocation/vdo_bio_threads.
|
|
# Specifies the number of threads to use for submitting I/O
|
|
# operations to the storage device of VDO volume.
|
|
# The value must be in range [1..100]
|
|
# Each additional thread after the first will use an additional 18MiB of RAM,
|
|
# plus 1.12 MiB of RAM per megabyte of configured read cache size.
|
|
# This configuration option has an automatic default value.
|
|
# vdo_bio_threads = 4
|
|
|
|
# Configuration option allocation/vdo_bio_rotation.
|
|
# Specifies the number of I/O operations to enqueue for each bio-submission
|
|
# thread before directing work to the next. The value must be in range [1..1024].
|
|
# This configuration option has an automatic default value.
|
|
# vdo_bio_rotation = 64
|
|
|
|
# Configuration option allocation/vdo_cpu_threads.
|
|
# Specifies the number of threads to use for CPU-intensive work such as
|
|
# hashing or compression for VDO volume. The value must be in range [1..100]
|
|
# This configuration option has an automatic default value.
|
|
# vdo_cpu_threads = 2
|
|
|
|
# Configuration option allocation/vdo_hash_zone_threads.
|
|
# Specifies the number of threads across which to subdivide parts of the VDO
|
|
# processing based on the hash value computed from the block data.
|
|
# The value must be at in range [0..100].
|
|
# vdo_hash_zone_threads, vdo_logical_threads and vdo_physical_threads must be
|
|
# either all zero or all non-zero.
|
|
# This configuration option has an automatic default value.
|
|
# vdo_hash_zone_threads = 1
|
|
|
|
# Configuration option allocation/vdo_logical_threads.
|
|
# Specifies the number of threads across which to subdivide parts of the VDO
|
|
# processing based on the hash value computed from the block data.
|
|
# A logical thread count of 9 or more will require explicitly specifying
|
|
# a sufficiently large block map cache size, as well.
|
|
# The value must be in range [0..100].
|
|
# vdo_hash_zone_threads, vdo_logical_threads and vdo_physical_threads must be
|
|
# either all zero or all non-zero.
|
|
# This configuration option has an automatic default value.
|
|
# vdo_logical_threads = 1
|
|
|
|
# Configuration option allocation/vdo_physical_threads.
|
|
# Specifies the number of threads across which to subdivide parts of the VDO
|
|
# processing based on physical block addresses.
|
|
# Each additional thread after the first will use an additional 10MiB of RAM.
|
|
# The value must be in range [0..16].
|
|
# vdo_hash_zone_threads, vdo_logical_threads and vdo_physical_threads must be
|
|
# either all zero or all non-zero.
|
|
# This configuration option has an automatic default value.
|
|
# vdo_physical_threads = 1
|
|
|
|
# Configuration option allocation/vdo_write_policy.
|
|
# Specifies the write policy:
|
|
# auto - VDO will check the storage device and determine whether it supports flushes.
|
|
# If it does, VDO will run in async mode, otherwise it will run in sync mode.
|
|
# sync - Writes are acknowledged only after data is stably written.
|
|
# This policy is not supported if the underlying storage is not also synchronous.
|
|
# async - Writes are acknowledged after data has been cached for writing to stable storage.
|
|
# Data which has not been flushed is not guaranteed to persist in this mode.
|
|
# This configuration option has an automatic default value.
|
|
# vdo_write_policy = "auto"
|
|
|
|
# Configuration option allocation/vdo_max_discard.
|
|
# Specified the maximum size of discard bio accepted, in 4096 byte blocks.
|
|
# I/O requests to a VDO volume are normally split into 4096-byte blocks,
|
|
# and processed up to 2048 at a time. However, discard requests to a VDO volume
|
|
# can be automatically split to a larger size, up to <max discard> 4096-byte blocks
|
|
# in a single bio, and are limited to 1500 at a time.
|
|
# Increasing this value may provide better overall performance, at the cost of
|
|
# increased latency for the individual discard requests.
|
|
# The default and minimum is 1. The maximum is UINT_MAX / 4096.
|
|
# This configuration option has an automatic default value.
|
|
# vdo_max_discard = 1
|
|
|
|
# Configuration option allocation/vdo_pool_header_size.
|
|
# Specified the emptry header size in KiB at the front and end of vdo pool device.
|
|
# This configuration option has an automatic default value.
|
|
# vdo_pool_header_size = 512
|
|
}
|
|
|
|
# Configuration section log.
|
|
# How LVM log information is reported.
|
|
log {
|
|
|
|
# Configuration option log/report_command_log.
|
|
# Enable or disable LVM log reporting.
|
|
# If enabled, LVM will collect a log of operations, messages,
|
|
# per-object return codes with object identification and associated
|
|
# error numbers (errnos) during LVM command processing. Then the
|
|
# log is either reported solely or in addition to any existing
|
|
# reports, depending on LVM command used. If it is a reporting command
|
|
# (e.g. pvs, vgs, lvs, lvm fullreport), then the log is reported in
|
|
# addition to any existing reports. Otherwise, there's only log report
|
|
# on output. For all applicable LVM commands, you can request that
|
|
# the output has only log report by using --logonly command line
|
|
# option. Use log/command_log_cols and log/command_log_sort settings
|
|
# to define fields to display and sort fields for the log report.
|
|
# You can also use log/command_log_selection to define selection
|
|
# criteria used each time the log is reported.
|
|
# This configuration option has an automatic default value.
|
|
# report_command_log = 0
|
|
|
|
# Configuration option log/command_log_sort.
|
|
# List of columns to sort by when reporting command log.
|
|
# See <lvm command> --logonly --configreport log -o help
|
|
# for the list of possible fields.
|
|
# This configuration option has an automatic default value.
|
|
# command_log_sort = "log_seq_num"
|
|
|
|
# Configuration option log/command_log_cols.
|
|
# List of columns to report when reporting command log.
|
|
# See <lvm command> --logonly --configreport log -o help
|
|
# for the list of possible fields.
|
|
# This configuration option has an automatic default value.
|
|
# command_log_cols = "log_seq_num,log_type,log_context,log_object_type,log_object_name,log_object_id,log_object_group,log_object_group_id,log_message,log_errno,log_ret_code"
|
|
|
|
# Configuration option log/command_log_selection.
|
|
# Selection criteria used when reporting command log.
|
|
# You can define selection criteria that are applied each
|
|
# time log is reported. This way, it is possible to control the
|
|
# amount of log that is displayed on output and you can select
|
|
# only parts of the log that are important for you. To define
|
|
# selection criteria, use fields from log report. See also
|
|
# <lvm command> --logonly --configreport log -S help for the
|
|
# list of possible fields and selection operators. You can also
|
|
# define selection criteria for log report on command line directly
|
|
# using <lvm command> --configreport log -S <selection criteria>
|
|
# which has precedence over log/command_log_selection setting.
|
|
# For more information about selection criteria in general, see
|
|
# lvm(8) man page.
|
|
# This configuration option has an automatic default value.
|
|
# command_log_selection = "!(log_type=status && message=success)"
|
|
|
|
# Configuration option log/verbose.
|
|
# Controls the messages sent to stdout or stderr.
|
|
verbose = 0
|
|
|
|
# Configuration option log/silent.
|
|
# Suppress all non-essential messages from stdout.
|
|
# This has the same effect as -qq. When enabled, the following commands
|
|
# still produce output: dumpconfig, lvdisplay, lvmdiskscan, lvs, pvck,
|
|
# pvdisplay, pvs, version, vgcfgrestore -l, vgdisplay, vgs.
|
|
# Non-essential messages are shifted from log level 4 to log level 5
|
|
# for syslog and lvm2_log_fn purposes.
|
|
# Any 'yes' or 'no' questions not overridden by other arguments are
|
|
# suppressed and default to 'no'.
|
|
silent = 0
|
|
|
|
# Configuration option log/syslog.
|
|
# Send log messages through syslog.
|
|
syslog = 1
|
|
|
|
# Configuration option log/file.
|
|
# Write error and debug log messages to a file specified here.
|
|
# This configuration option does not have a default value defined.
|
|
|
|
# Configuration option log/overwrite.
|
|
# Overwrite the log file each time the program is run.
|
|
overwrite = 0
|
|
|
|
# Configuration option log/level.
|
|
# The level of log messages that are sent to the log file or syslog.
|
|
# There are 6 syslog-like log levels currently in use: 2 to 7 inclusive.
|
|
# 7 is the most verbose (LOG_DEBUG).
|
|
level = 0
|
|
|
|
# Configuration option log/indent.
|
|
# Indent messages according to their severity.
|
|
# This configuration option has an automatic default value.
|
|
# indent = 0
|
|
|
|
# Configuration option log/command_names.
|
|
# Display the command name on each line of output.
|
|
command_names = 0
|
|
|
|
# Configuration option log/prefix.
|
|
# A prefix to use before the log message text.
|
|
# (After the command name, if selected).
|
|
# Two spaces allows you to see/grep the severity of each message.
|
|
# To make the messages look similar to the original LVM tools use:
|
|
# indent = 0, command_names = 1, prefix = " -- "
|
|
prefix = " "
|
|
|
|
# Configuration option log/activation.
|
|
# Log messages during activation.
|
|
# Don't use this in low memory situations (can deadlock).
|
|
activation = 0
|
|
|
|
# Configuration option log/debug_classes.
|
|
# Select log messages by class.
|
|
# Some debugging messages are assigned to a class and only appear in
|
|
# debug output if the class is listed here. Classes currently
|
|
# available: memory, devices, io, activation, allocation,
|
|
# metadata, cache, locking, lvmpolld. Use "all" to see everything.
|
|
debug_classes = [ "memory", "devices", "io", "activation", "allocation", "metadata", "cache", "locking", "lvmpolld", "dbus" ]
|
|
|
|
# Configuration option log/debug_file_fields.
|
|
# The fields included in debug output written to log file.
|
|
# Use "all" to include everything (the default).
|
|
# This configuration option is advanced.
|
|
# This configuration option has an automatic default value.
|
|
# debug_file_fields = [ "time", "command", "fileline", "message" ]
|
|
|
|
# Configuration option log/debug_output_fields.
|
|
# The fields included in debug output written to stderr.
|
|
# Use "all" to include everything (the default).
|
|
# This configuration option is advanced.
|
|
# This configuration option has an automatic default value.
|
|
# debug_output_fields = [ "time", "command", "fileline", "message" ]
|
|
}
|
|
|
|
# Configuration section backup.
|
|
# How LVM metadata is backed up and archived.
|
|
# In LVM, a 'backup' is a copy of the metadata for the current system,
|
|
# and an 'archive' contains old metadata configurations. They are
|
|
# stored in a human readable text format.
|
|
backup {
|
|
|
|
# Configuration option backup/backup.
|
|
# Maintain a backup of the current metadata configuration.
|
|
# Think very hard before turning this off!
|
|
backup = 1
|
|
|
|
# Configuration option backup/backup_dir.
|
|
# Location of the metadata backup files.
|
|
# Remember to back up this directory regularly!
|
|
backup_dir = "@DEFAULT_SYS_DIR@/@DEFAULT_BACKUP_SUBDIR@"
|
|
|
|
# Configuration option backup/archive.
|
|
# Maintain an archive of old metadata configurations.
|
|
# Think very hard before turning this off.
|
|
archive = 1
|
|
|
|
# Configuration option backup/archive_dir.
|
|
# Location of the metdata archive files.
|
|
# Remember to back up this directory regularly!
|
|
archive_dir = "@DEFAULT_SYS_DIR@/@DEFAULT_ARCHIVE_SUBDIR@"
|
|
|
|
# Configuration option backup/retain_min.
|
|
# Minimum number of archives to keep.
|
|
retain_min = 10
|
|
|
|
# Configuration option backup/retain_days.
|
|
# Minimum number of days to keep archive files.
|
|
retain_days = 30
|
|
}
|
|
|
|
# Configuration section shell.
|
|
# Settings for running LVM in shell (readline) mode.
|
|
shell {
|
|
|
|
# Configuration option shell/history_size.
|
|
# Number of lines of history to store in ~/.lvm_history.
|
|
history_size = 100
|
|
}
|
|
|
|
# Configuration section global.
|
|
# Miscellaneous global LVM settings.
|
|
global {
|
|
|
|
# Configuration option global/umask.
|
|
# The file creation mask for any files and directories created.
|
|
# Interpreted as octal if the first digit is zero.
|
|
umask = 077
|
|
|
|
# Configuration option global/test.
|
|
# No on-disk metadata changes will be made in test mode.
|
|
# Equivalent to having the -t option on every command.
|
|
test = 0
|
|
|
|
# Configuration option global/units.
|
|
# Default value for --units argument.
|
|
units = "r"
|
|
|
|
# Configuration option global/si_unit_consistency.
|
|
# Distinguish between powers of 1024 and 1000 bytes.
|
|
# The LVM commands distinguish between powers of 1024 bytes,
|
|
# e.g. KiB, MiB, GiB, and powers of 1000 bytes, e.g. KB, MB, GB.
|
|
# If scripts depend on the old behaviour, disable this setting
|
|
# temporarily until they are updated.
|
|
si_unit_consistency = 1
|
|
|
|
# Configuration option global/suffix.
|
|
# Display unit suffix for sizes.
|
|
# This setting has no effect if the units are in human-readable form
|
|
# (global/units = "h") in which case the suffix is always displayed.
|
|
suffix = 1
|
|
|
|
# Configuration option global/activation.
|
|
# Enable/disable communication with the kernel device-mapper.
|
|
# Disable to use the tools to manipulate LVM metadata without
|
|
# activating any logical volumes. If the device-mapper driver
|
|
# is not present in the kernel, disabling this should suppress
|
|
# the error messages.
|
|
activation = 1
|
|
|
|
# Configuration option global/proc.
|
|
# Location of proc filesystem.
|
|
# This configuration option is advanced.
|
|
proc = "/proc"
|
|
|
|
# Configuration option global/etc.
|
|
# Location of /etc system configuration directory.
|
|
etc = "@CONFDIR@"
|
|
|
|
# Configuration option global/wait_for_locks.
|
|
# When disabled, fail if a lock request would block.
|
|
wait_for_locks = 1
|
|
|
|
# Configuration option global/locking_dir.
|
|
# Directory to use for LVM command file locks.
|
|
# Local non-LV directory that holds file-based locks while commands are
|
|
# in progress. A directory like /tmp that may get wiped on reboot is OK.
|
|
locking_dir = "@DEFAULT_LOCK_DIR@"
|
|
|
|
# Configuration option global/prioritise_write_locks.
|
|
# Allow quicker VG write access during high volume read access.
|
|
# When there are competing read-only and read-write access requests for
|
|
# a volume group's metadata, instead of always granting the read-only
|
|
# requests immediately, delay them to allow the read-write requests to
|
|
# be serviced. Without this setting, write access may be stalled by a
|
|
# high volume of read-only requests. This option only affects file locks.
|
|
prioritise_write_locks = 1
|
|
|
|
# Configuration option global/library_dir.
|
|
# Search this directory first for shared libraries.
|
|
# This configuration option does not have a default value defined.
|
|
|
|
# Configuration option global/abort_on_internal_errors.
|
|
# Abort a command that encounters an internal error.
|
|
# Treat any internal errors as fatal errors, aborting the process that
|
|
# encountered the internal error. Please only enable for debugging.
|
|
abort_on_internal_errors = 0
|
|
|
|
# Configuration option global/metadata_read_only.
|
|
# No operations that change on-disk metadata are permitted.
|
|
# Additionally, read-only commands that encounter metadata in need of
|
|
# repair will still be allowed to proceed exactly as if the repair had
|
|
# been performed (except for the unchanged vg_seqno). Inappropriate
|
|
# use could mess up your system, so seek advice first!
|
|
metadata_read_only = 0
|
|
|
|
# Configuration option global/mirror_segtype_default.
|
|
# The segment type used by the short mirroring option -m.
|
|
# The --type mirror|raid1 option overrides this setting.
|
|
#
|
|
# Accepted values:
|
|
# mirror
|
|
# The original RAID1 implementation from LVM/DM. It is
|
|
# characterized by a flexible log solution (core, disk, mirrored),
|
|
# and by the necessity to block I/O while handling a failure.
|
|
# There is an inherent race in the dmeventd failure handling logic
|
|
# with snapshots of devices using this type of RAID1 that in the
|
|
# worst case could cause a deadlock. (Also see
|
|
# devices/ignore_lvm_mirrors.)
|
|
# raid1
|
|
# This is a newer RAID1 implementation using the MD RAID1
|
|
# personality through device-mapper. It is characterized by a
|
|
# lack of log options. (A log is always allocated for every
|
|
# device and they are placed on the same device as the image,
|
|
# so no separate devices are required.) This mirror
|
|
# implementation does not require I/O to be blocked while
|
|
# handling a failure. This mirror implementation is not
|
|
# cluster-aware and cannot be used in a shared (active/active)
|
|
# fashion in a cluster.
|
|
#
|
|
mirror_segtype_default = "@DEFAULT_MIRROR_SEGTYPE@"
|
|
|
|
# Configuration option global/support_mirrored_mirror_log.
|
|
# Enable mirrored 'mirror' log type for testing.
|
|
#
|
|
# This type is deprecated to create or convert to but can
|
|
# be enabled to test that activation of existing mirrored
|
|
# logs and conversion to disk/core works.
|
|
#
|
|
# Not supported for regular operation!
|
|
# This configuration option has an automatic default value.
|
|
# support_mirrored_mirror_log = 0
|
|
|
|
# Configuration option global/raid10_segtype_default.
|
|
# The segment type used by the -i -m combination.
|
|
# The --type raid10|mirror option overrides this setting.
|
|
# The --stripes/-i and --mirrors/-m options can both be specified
|
|
# during the creation of a logical volume to use both striping and
|
|
# mirroring for the LV. There are two different implementations.
|
|
#
|
|
# Accepted values:
|
|
# raid10
|
|
# LVM uses MD's RAID10 personality through DM. This is the
|
|
# preferred option.
|
|
# mirror
|
|
# LVM layers the 'mirror' and 'stripe' segment types. The layering
|
|
# is done by creating a mirror LV on top of striped sub-LVs,
|
|
# effectively creating a RAID 0+1 array. The layering is suboptimal
|
|
# in terms of providing redundancy and performance.
|
|
#
|
|
raid10_segtype_default = "@DEFAULT_RAID10_SEGTYPE@"
|
|
|
|
# Configuration option global/sparse_segtype_default.
|
|
# The segment type used by the -V -L combination.
|
|
# The --type snapshot|thin option overrides this setting.
|
|
# The combination of -V and -L options creates a sparse LV. There are
|
|
# two different implementations.
|
|
#
|
|
# Accepted values:
|
|
# snapshot
|
|
# The original snapshot implementation from LVM/DM. It uses an old
|
|
# snapshot that mixes data and metadata within a single COW
|
|
# storage volume and performs poorly when the size of stored data
|
|
# passes hundreds of MB.
|
|
# thin
|
|
# A newer implementation that uses thin provisioning. It has a
|
|
# bigger minimal chunk size (64KiB) and uses a separate volume for
|
|
# metadata. It has better performance, especially when more data
|
|
# is used. It also supports full snapshots.
|
|
#
|
|
sparse_segtype_default = "@DEFAULT_SPARSE_SEGTYPE@"
|
|
|
|
# Configuration option global/lvdisplay_shows_full_device_path.
|
|
# Enable this to reinstate the previous lvdisplay name format.
|
|
# The default format for displaying LV names in lvdisplay was changed
|
|
# in version 2.02.89 to show the LV name and path separately.
|
|
# Previously this was always shown as /dev/vgname/lvname even when that
|
|
# was never a valid path in the /dev filesystem.
|
|
# This configuration option has an automatic default value.
|
|
# lvdisplay_shows_full_device_path = 0
|
|
|
|
# Configuration option global/event_activation.
|
|
# Activate LVs based on system-generated device events.
|
|
# When a PV appears on the system, a system-generated uevent triggers
|
|
# the lvm2-pvscan service which runs the pvscan --cache -aay command.
|
|
# If the new PV completes a VG, pvscan autoactivates LVs in the VG.
|
|
# When event_activation is disabled, the lvm2-activation services are
|
|
# generated and run at fixed points during system startup. These
|
|
# services run vgchange -aay to autoactivate LVs in VGs that happen
|
|
# to be present at that point in time.
|
|
# See the --setautoactivation option or the auto_activation_volume_list
|
|
# setting to configure autoactivation for specific VGs or LVs.
|
|
# This configuration option has an automatic default value.
|
|
# event_activation = 1
|
|
|
|
# Configuration option global/use_aio.
|
|
# Use async I/O when reading and writing devices.
|
|
# This configuration option has an automatic default value.
|
|
# use_aio = 1
|
|
|
|
# Configuration option global/use_lvmlockd.
|
|
# Use lvmlockd for locking among hosts using LVM on shared storage.
|
|
# Applicable only if LVM is compiled with lockd support in which
|
|
# case there is also lvmlockd(8) man page available for more
|
|
# information.
|
|
use_lvmlockd = 0
|
|
|
|
# Configuration option global/lvmlockd_lock_retries.
|
|
# Retry lvmlockd lock requests this many times.
|
|
# Applicable only if LVM is compiled with lockd support
|
|
# This configuration option has an automatic default value.
|
|
# lvmlockd_lock_retries = 3
|
|
|
|
# Configuration option global/sanlock_lv_extend.
|
|
# Size in MiB to extend the internal LV holding sanlock locks.
|
|
# The internal LV holds locks for each LV in the VG, and after enough
|
|
# LVs have been created, the internal LV needs to be extended. lvcreate
|
|
# will automatically extend the internal LV when needed by the amount
|
|
# specified here. Setting this to 0 disables the automatic extension
|
|
# and can cause lvcreate to fail. Applicable only if LVM is compiled
|
|
# with lockd support
|
|
# This configuration option has an automatic default value.
|
|
# sanlock_lv_extend = 256
|
|
|
|
# Configuration option global/lvmlockctl_kill_command.
|
|
# The command that lvmlockctl --kill should use to force LVs offline.
|
|
# The lvmlockctl --kill command is run when a shared VG has lost
|
|
# access to locks (e.g. when sanlock has lost access to storage.)
|
|
# An empty string means that there will be no automatic attempt by
|
|
# lvmlockctl --kill to forcibly shut down LVs in the VG, and the user
|
|
# can manually intervene as described in lvmlockd(8).
|
|
# The VG name will be appended to the command specified here.
|
|
# This configuration option has an automatic default value.
|
|
# lvmlockctl_kill_command = ""
|
|
|
|
# Configuration option global/thin_check_executable.
|
|
# The full path to the thin_check command.
|
|
# LVM uses this command to check that a thin metadata device is in a
|
|
# usable state. When a thin pool is activated and after it is
|
|
# deactivated, this command is run. Activation will only proceed if
|
|
# the command has an exit status of 0. Set to "" to skip this check.
|
|
# (Not recommended.) Also see thin_check_options.
|
|
# (See package device-mapper-persistent-data or thin-provisioning-tools)
|
|
# This configuration option has an automatic default value.
|
|
# thin_check_executable = "@THIN_CHECK_CMD@"
|
|
|
|
# Configuration option global/thin_dump_executable.
|
|
# The full path to the thin_dump command.
|
|
# LVM uses this command to dump thin pool metadata.
|
|
# (See package device-mapper-persistent-data or thin-provisioning-tools)
|
|
# This configuration option has an automatic default value.
|
|
# thin_dump_executable = "@THIN_DUMP_CMD@"
|
|
|
|
# Configuration option global/thin_repair_executable.
|
|
# The full path to the thin_repair command.
|
|
# LVM uses this command to repair a thin metadata device if it is in
|
|
# an unusable state. Also see thin_repair_options.
|
|
# (See package device-mapper-persistent-data or thin-provisioning-tools)
|
|
# This configuration option has an automatic default value.
|
|
# thin_repair_executable = "@THIN_REPAIR_CMD@"
|
|
|
|
# Configuration option global/thin_check_options.
|
|
# List of options passed to the thin_check command.
|
|
# With thin_check version 2.1 or newer you can add the option
|
|
# --ignore-non-fatal-errors to let it pass through ignorable errors
|
|
# and fix them later. With thin_check version 3.2 or newer you should
|
|
# include the option --clear-needs-check-flag.
|
|
# This configuration option has an automatic default value.
|
|
# thin_check_options = [ "-q", "--clear-needs-check-flag" ]
|
|
|
|
# Configuration option global/thin_repair_options.
|
|
# List of options passed to the thin_repair command.
|
|
# This configuration option has an automatic default value.
|
|
# thin_repair_options = [ "" ]
|
|
|
|
# Configuration option global/thin_disabled_features.
|
|
# Features to not use in the thin driver.
|
|
# This can be helpful for testing, or to avoid using a feature that is
|
|
# causing problems. Features include: block_size, discards,
|
|
# discards_non_power_2, external_origin, metadata_resize,
|
|
# external_origin_extend, error_if_no_space.
|
|
#
|
|
# Example
|
|
# thin_disabled_features = [ "discards", "block_size" ]
|
|
#
|
|
# This configuration option does not have a default value defined.
|
|
|
|
# Configuration option global/cache_disabled_features.
|
|
# Features to not use in the cache driver.
|
|
# This can be helpful for testing, or to avoid using a feature that is
|
|
# causing problems. Features include: policy_mq, policy_smq, metadata2.
|
|
#
|
|
# Example
|
|
# cache_disabled_features = [ "policy_smq" ]
|
|
#
|
|
# This configuration option does not have a default value defined.
|
|
|
|
# Configuration option global/cache_check_executable.
|
|
# The full path to the cache_check command.
|
|
# LVM uses this command to check that a cache metadata device is in a
|
|
# usable state. When a cached LV is activated and after it is
|
|
# deactivated, this command is run. Activation will only proceed if the
|
|
# command has an exit status of 0. Set to "" to skip this check.
|
|
# (Not recommended.) Also see cache_check_options.
|
|
# (See package device-mapper-persistent-data or thin-provisioning-tools)
|
|
# This configuration option has an automatic default value.
|
|
# cache_check_executable = "@CACHE_CHECK_CMD@"
|
|
|
|
# Configuration option global/cache_dump_executable.
|
|
# The full path to the cache_dump command.
|
|
# LVM uses this command to dump cache pool metadata.
|
|
# (See package device-mapper-persistent-data or thin-provisioning-tools)
|
|
# This configuration option has an automatic default value.
|
|
# cache_dump_executable = "@CACHE_DUMP_CMD@"
|
|
|
|
# Configuration option global/cache_repair_executable.
|
|
# The full path to the cache_repair command.
|
|
# LVM uses this command to repair a cache metadata device if it is in
|
|
# an unusable state. Also see cache_repair_options.
|
|
# (See package device-mapper-persistent-data or thin-provisioning-tools)
|
|
# This configuration option has an automatic default value.
|
|
# cache_repair_executable = "@CACHE_REPAIR_CMD@"
|
|
|
|
# Configuration option global/cache_check_options.
|
|
# List of options passed to the cache_check command.
|
|
# With cache_check version 5.0 or newer you should include the option
|
|
# --clear-needs-check-flag.
|
|
# This configuration option has an automatic default value.
|
|
# cache_check_options = [ "-q", "--clear-needs-check-flag" ]
|
|
|
|
# Configuration option global/cache_repair_options.
|
|
# List of options passed to the cache_repair command.
|
|
# This configuration option has an automatic default value.
|
|
# cache_repair_options = [ "" ]
|
|
|
|
# Configuration option global/vdo_format_executable.
|
|
# The full path to the vdoformat command.
|
|
# LVM uses this command to initial data volume for VDO type logical volume
|
|
# This configuration option has an automatic default value.
|
|
# vdo_format_executable = "@VDO_FORMAT_CMD@"
|
|
|
|
# Configuration option global/vdo_format_options.
|
|
# List of options passed added to standard vdoformat command.
|
|
# This configuration option has an automatic default value.
|
|
# vdo_format_options = [ "" ]
|
|
|
|
# Configuration option global/vdo_disabled_features.
|
|
# Features to not use in the vdo driver.
|
|
# This can be helpful for testing, or to avoid using a feature that is
|
|
# causing problems. Features include: online_rename
|
|
#
|
|
# Example
|
|
# vdo_disabled_features = [ "online_rename" ]
|
|
#
|
|
# This configuration option does not have a default value defined.
|
|
|
|
# Configuration option global/fsadm_executable.
|
|
# The full path to the fsadm command.
|
|
# LVM uses this command to help with lvresize -r operations.
|
|
# This configuration option has an automatic default value.
|
|
# fsadm_executable = "@FSADM_PATH@"
|
|
|
|
# Configuration option global/system_id_source.
|
|
# The method LVM uses to set the local system ID.
|
|
# Volume Groups can also be given a system ID (by vgcreate, vgchange,
|
|
# or vgimport.) A VG on shared storage devices is accessible only to
|
|
# the host with a matching system ID. See 'man lvmsystemid' for
|
|
# information on limitations and correct usage.
|
|
#
|
|
# Accepted values:
|
|
# none
|
|
# The host has no system ID.
|
|
# lvmlocal
|
|
# Obtain the system ID from the system_id setting in the 'local'
|
|
# section of an lvm configuration file, e.g. lvmlocal.conf.
|
|
# uname
|
|
# Set the system ID from the hostname (uname) of the system.
|
|
# System IDs beginning localhost are not permitted.
|
|
# machineid
|
|
# Use the contents of the machine-id file to set the system ID.
|
|
# Some systems create this file at installation time.
|
|
# See 'man machine-id' and global/etc.
|
|
# file
|
|
# Use the contents of another file (system_id_file) to set the
|
|
# system ID.
|
|
#
|
|
system_id_source = "none"
|
|
|
|
# Configuration option global/system_id_file.
|
|
# The full path to the file containing a system ID.
|
|
# This is used when system_id_source is set to 'file'.
|
|
# Comments starting with the character # are ignored.
|
|
# This configuration option does not have a default value defined.
|
|
|
|
# Configuration option global/use_lvmpolld.
|
|
# Use lvmpolld to supervise long running LVM commands.
|
|
# When enabled, control of long running LVM commands is transferred
|
|
# from the original LVM command to the lvmpolld daemon. This allows
|
|
# the operation to continue independent of the original LVM command.
|
|
# After lvmpolld takes over, the LVM command displays the progress
|
|
# of the ongoing operation. lvmpolld itself runs LVM commands to
|
|
# manage the progress of ongoing operations. lvmpolld can be used as
|
|
# a native systemd service, which allows it to be started on demand,
|
|
# and to use its own control group. When this option is disabled, LVM
|
|
# commands will supervise long running operations by forking themselves.
|
|
# Applicable only if LVM is compiled with lvmpolld support.
|
|
use_lvmpolld = @DEFAULT_USE_LVMPOLLD@
|
|
|
|
# Configuration option global/notify_dbus.
|
|
# Enable D-Bus notification from LVM commands.
|
|
# When enabled, an LVM command that changes PVs, changes VG metadata,
|
|
# or changes the activation state of an LV will send a notification.
|
|
notify_dbus = 1
|
|
|
|
# Configuration option global/io_memory_size.
|
|
# The amount of memory in KiB that LVM allocates to perform disk io.
|
|
# LVM performance may benefit from more io memory when there are many
|
|
# disks or VG metadata is large. Increasing this size may be necessary
|
|
# when a single copy of VG metadata is larger than the current setting.
|
|
# This value should usually not be decreased from the default; setting
|
|
# it too low can result in lvm failing to read VGs.
|
|
# This configuration option has an automatic default value.
|
|
# io_memory_size = 8192
|
|
}
|
|
|
|
# Configuration section activation.
|
|
activation {
|
|
|
|
# Configuration option activation/checks.
|
|
# Perform internal checks of libdevmapper operations.
|
|
# Useful for debugging problems with activation. Some of the checks may
|
|
# be expensive, so it's best to use this only when there seems to be a
|
|
# problem.
|
|
checks = 0
|
|
|
|
# Configuration option activation/udev_sync.
|
|
# Use udev notifications to synchronize udev and LVM.
|
|
# The --noudevsync option overrides this setting.
|
|
# When disabled, LVM commands will not wait for notifications from
|
|
# udev, but continue irrespective of any possible udev processing in
|
|
# the background. Only use this if udev is not running or has rules
|
|
# that ignore the devices LVM creates. If enabled when udev is not
|
|
# running, and LVM processes are waiting for udev, run the command
|
|
# 'dmsetup udevcomplete_all' to wake them up.
|
|
udev_sync = 1
|
|
|
|
# Configuration option activation/udev_rules.
|
|
# Use udev rules to manage LV device nodes and symlinks.
|
|
# When disabled, LVM will manage the device nodes and symlinks for
|
|
# active LVs itself. Manual intervention may be required if this
|
|
# setting is changed while LVs are active.
|
|
udev_rules = 1
|
|
|
|
# Configuration option activation/verify_udev_operations.
|
|
# Use extra checks in LVM to verify udev operations.
|
|
# This enables additional checks (and if necessary, repairs) on entries
|
|
# in the device directory after udev has completed processing its
|
|
# events. Useful for diagnosing problems with LVM/udev interactions.
|
|
# This configuration option has an automatic default value.
|
|
# verify_udev_operations = 0
|
|
|
|
# Configuration option activation/retry_deactivation.
|
|
# Retry failed LV deactivation.
|
|
# If LV deactivation fails, LVM will retry for a few seconds before
|
|
# failing. This may happen because a process run from a quick udev rule
|
|
# temporarily opened the device.
|
|
retry_deactivation = 1
|
|
|
|
# Configuration option activation/missing_stripe_filler.
|
|
# Method to fill missing stripes when activating an incomplete LV.
|
|
# Using 'error' will make inaccessible parts of the device return I/O
|
|
# errors on access. Using 'zero' will return success (and zero) on I/O
|
|
# You can instead use a device path, in which case,
|
|
# that device will be used in place of missing stripes. Using anything
|
|
# other than 'error' with mirrored or snapshotted volumes is likely to
|
|
# result in data corruption.
|
|
# This configuration option is advanced.
|
|
missing_stripe_filler = "error"
|
|
|
|
# Configuration option activation/use_linear_target.
|
|
# Use the linear target to optimize single stripe LVs.
|
|
# When disabled, the striped target is used. The linear target is an
|
|
# optimised version of the striped target that only handles a single
|
|
# stripe.
|
|
# This configuration option has an automatic default value.
|
|
# use_linear_target = 1
|
|
|
|
# Configuration option activation/reserved_stack.
|
|
# Stack size in KiB to reserve for use while devices are suspended.
|
|
# Insufficent reserve risks I/O deadlock during device suspension.
|
|
# This configuration option has an automatic default value.
|
|
# reserved_stack = 64
|
|
|
|
# Configuration option activation/reserved_memory.
|
|
# Memory size in KiB to reserve for use while devices are suspended.
|
|
# Insufficent reserve risks I/O deadlock during device suspension.
|
|
# This configuration option has an automatic default value.
|
|
# reserved_memory = 8192
|
|
|
|
# Configuration option activation/process_priority.
|
|
# Nice value used while devices are suspended.
|
|
# Use a high priority so that LVs are suspended
|
|
# for the shortest possible time.
|
|
# This configuration option has an automatic default value.
|
|
# process_priority = -18
|
|
|
|
# Configuration option activation/volume_list.
|
|
# Only LVs selected by this list are activated.
|
|
# If this list is defined, an LV is only activated if it matches an
|
|
# entry in this list. If this list is undefined, it imposes no limits
|
|
# on LV activation (all are allowed).
|
|
#
|
|
# Accepted values:
|
|
# vgname
|
|
# The VG name is matched exactly and selects all LVs in the VG.
|
|
# vgname/lvname
|
|
# The VG name and LV name are matched exactly and selects the LV.
|
|
# @tag
|
|
# Selects an LV if the specified tag matches a tag set on the LV
|
|
# or VG.
|
|
# @*
|
|
# Selects an LV if a tag defined on the host is also set on the LV
|
|
# or VG. See tags/hosttags. If any host tags exist but volume_list
|
|
# is not defined, a default single-entry list containing '@*'
|
|
# is assumed.
|
|
#
|
|
# Example
|
|
# volume_list = [ "vg1", "vg2/lvol1", "@tag1", "@*" ]
|
|
#
|
|
# This configuration option does not have a default value defined.
|
|
|
|
# Configuration option activation/auto_activation_volume_list.
|
|
# A list of VGs or LVs that should be autoactivated.
|
|
# Autoactivation is an activation command run with -aay,
|
|
# i.e. vgchange -aay, lvchange -aay, or pvscan --cache -aay.
|
|
# When this list is defined, an autoactivation command will only
|
|
# activate LVs included in the list. If this list is undefined,
|
|
# it has no effect. If this list is defined but empty, then no
|
|
# LVs will be autoactivated. LVs can be included in the list by
|
|
# LV name, VG name (applies to all LVs in the VG), or tag name.
|
|
# VGs and LVs can also have an autoactivation property set in
|
|
# metadata, see --setautoactivation. LVs included in this list
|
|
# will not be autoactivated if the VG or LV autoactivation
|
|
# property is disabled (see vgs or lvs "-o autoactivation").
|
|
# The volume_list setting and the "activation skip" property
|
|
# also apply to autoactivation.
|
|
# The -aay option is meant to be used by activation commands that
|
|
# are run automatically by the system, e.g. from systemd services.
|
|
#
|
|
# Accepted values:
|
|
# vgname
|
|
# The VG name is matched exactly and selects all LVs in the VG.
|
|
# vgname/lvname
|
|
# The VG name and LV name are matched exactly and selects the LV.
|
|
# @tag
|
|
# Selects an LV if the specified tag matches a tag set on the LV
|
|
# or VG.
|
|
# @*
|
|
# Selects an LV if a tag defined on the host is also set on the LV
|
|
# or VG. See tags/hosttags. If any host tags exist but volume_list
|
|
# is not defined, a default single-entry list containing '@*'
|
|
# is assumed.
|
|
#
|
|
# Example
|
|
# auto_activation_volume_list = [ "vg1", "vg2/lvol1", "@tag1", "@*" ]
|
|
#
|
|
# This configuration option does not have a default value defined.
|
|
|
|
# Configuration option activation/read_only_volume_list.
|
|
# LVs in this list are activated in read-only mode.
|
|
# If this list is defined, each LV that is to be activated is checked
|
|
# against this list, and if it matches, it is activated in read-only
|
|
# mode. This overrides the permission setting stored in the metadata,
|
|
# e.g. from --permission rw.
|
|
#
|
|
# Accepted values:
|
|
# vgname
|
|
# The VG name is matched exactly and selects all LVs in the VG.
|
|
# vgname/lvname
|
|
# The VG name and LV name are matched exactly and selects the LV.
|
|
# @tag
|
|
# Selects an LV if the specified tag matches a tag set on the LV
|
|
# or VG.
|
|
# @*
|
|
# Selects an LV if a tag defined on the host is also set on the LV
|
|
# or VG. See tags/hosttags. If any host tags exist but volume_list
|
|
# is not defined, a default single-entry list containing '@*'
|
|
# is assumed.
|
|
#
|
|
# Example
|
|
# read_only_volume_list = [ "vg1", "vg2/lvol1", "@tag1", "@*" ]
|
|
#
|
|
# This configuration option does not have a default value defined.
|
|
|
|
# Configuration option activation/raid_region_size.
|
|
# Size in KiB of each raid or mirror synchronization region.
|
|
# The clean/dirty state of data is tracked for each region.
|
|
# The value is rounded down to a power of two if necessary, and
|
|
# is ignored if it is not a multiple of the machine memory page size.
|
|
raid_region_size = 2048
|
|
|
|
# Configuration option activation/error_when_full.
|
|
# Return errors if a thin pool runs out of space.
|
|
# The --errorwhenfull option overrides this setting.
|
|
# When enabled, writes to thin LVs immediately return an error if the
|
|
# thin pool is out of data space. When disabled, writes to thin LVs
|
|
# are queued if the thin pool is out of space, and processed when the
|
|
# thin pool data space is extended. New thin pools are assigned the
|
|
# behavior defined here.
|
|
# This configuration option has an automatic default value.
|
|
# error_when_full = 0
|
|
|
|
# Configuration option activation/readahead.
|
|
# Setting to use when there is no readahead setting in metadata.
|
|
#
|
|
# Accepted values:
|
|
# none
|
|
# Disable readahead.
|
|
# auto
|
|
# Use default value chosen by kernel.
|
|
#
|
|
# This configuration option has an automatic default value.
|
|
# readahead = "auto"
|
|
|
|
# Configuration option activation/raid_fault_policy.
|
|
# Defines how a device failure in a RAID LV is handled.
|
|
# This includes LVs that have the following segment types:
|
|
# raid1, raid4, raid5*, and raid6*.
|
|
# If a device in the LV fails, the policy determines the steps
|
|
# performed by dmeventd automatically, and the steps perfomed by the
|
|
# manual command lvconvert --repair --use-policies.
|
|
# Automatic handling requires dmeventd to be monitoring the LV.
|
|
#
|
|
# Accepted values:
|
|
# warn
|
|
# Use the system log to warn the user that a device in the RAID LV
|
|
# has failed. It is left to the user to run lvconvert --repair
|
|
# manually to remove or replace the failed device. As long as the
|
|
# number of failed devices does not exceed the redundancy of the LV
|
|
# (1 device for raid4/5, 2 for raid6), the LV will remain usable.
|
|
# allocate
|
|
# Attempt to use any extra physical volumes in the VG as spares and
|
|
# replace faulty devices.
|
|
#
|
|
raid_fault_policy = "warn"
|
|
|
|
# Configuration option activation/mirror_image_fault_policy.
|
|
# Defines how a device failure in a 'mirror' LV is handled.
|
|
# An LV with the 'mirror' segment type is composed of mirror images
|
|
# (copies) and a mirror log. A disk log ensures that a mirror LV does
|
|
# not need to be re-synced (all copies made the same) every time a
|
|
# machine reboots or crashes. If a device in the LV fails, this policy
|
|
# determines the steps perfomed by dmeventd automatically, and the steps
|
|
# performed by the manual command lvconvert --repair --use-policies.
|
|
# Automatic handling requires dmeventd to be monitoring the LV.
|
|
#
|
|
# Accepted values:
|
|
# remove
|
|
# Simply remove the faulty device and run without it. If the log
|
|
# device fails, the mirror would convert to using an in-memory log.
|
|
# This means the mirror will not remember its sync status across
|
|
# crashes/reboots and the entire mirror will be re-synced. If a
|
|
# mirror image fails, the mirror will convert to a non-mirrored
|
|
# device if there is only one remaining good copy.
|
|
# allocate
|
|
# Remove the faulty device and try to allocate space on a new
|
|
# device to be a replacement for the failed device. Using this
|
|
# policy for the log is fast and maintains the ability to remember
|
|
# sync state through crashes/reboots. Using this policy for a
|
|
# mirror device is slow, as it requires the mirror to resynchronize
|
|
# the devices, but it will preserve the mirror characteristic of
|
|
# the device. This policy acts like 'remove' if no suitable device
|
|
# and space can be allocated for the replacement.
|
|
# allocate_anywhere
|
|
# Not yet implemented. Useful to place the log device temporarily
|
|
# on the same physical volume as one of the mirror images. This
|
|
# policy is not recommended for mirror devices since it would break
|
|
# the redundant nature of the mirror. This policy acts like
|
|
# 'remove' if no suitable device and space can be allocated for the
|
|
# replacement.
|
|
#
|
|
mirror_image_fault_policy = "remove"
|
|
|
|
# Configuration option activation/mirror_log_fault_policy.
|
|
# Defines how a device failure in a 'mirror' log LV is handled.
|
|
# The mirror_image_fault_policy description for mirrored LVs also
|
|
# applies to mirrored log LVs.
|
|
mirror_log_fault_policy = "allocate"
|
|
|
|
# Configuration option activation/snapshot_autoextend_threshold.
|
|
# Auto-extend a snapshot when its usage exceeds this percent.
|
|
# Setting this to 100 disables automatic extension.
|
|
# The minimum value is 50 (a smaller value is treated as 50.)
|
|
# Also see snapshot_autoextend_percent.
|
|
# Automatic extension requires dmeventd to be monitoring the LV.
|
|
#
|
|
# Example
|
|
# Using 70% autoextend threshold and 20% autoextend size, when a 1G
|
|
# snapshot exceeds 700M, it is extended to 1.2G, and when it exceeds
|
|
# 840M, it is extended to 1.44G:
|
|
# snapshot_autoextend_threshold = 70
|
|
#
|
|
snapshot_autoextend_threshold = 100
|
|
|
|
# Configuration option activation/snapshot_autoextend_percent.
|
|
# Auto-extending a snapshot adds this percent extra space.
|
|
# The amount of additional space added to a snapshot is this
|
|
# percent of its current size.
|
|
#
|
|
# Example
|
|
# Using 70% autoextend threshold and 20% autoextend size, when a 1G
|
|
# snapshot exceeds 700M, it is extended to 1.2G, and when it exceeds
|
|
# 840M, it is extended to 1.44G:
|
|
# snapshot_autoextend_percent = 20
|
|
#
|
|
snapshot_autoextend_percent = 20
|
|
|
|
# Configuration option activation/thin_pool_autoextend_threshold.
|
|
# Auto-extend a thin pool when its usage exceeds this percent.
|
|
# Setting this to 100 disables automatic extension.
|
|
# The minimum value is 50 (a smaller value is treated as 50.)
|
|
# Also see thin_pool_autoextend_percent.
|
|
# Automatic extension requires dmeventd to be monitoring the LV.
|
|
#
|
|
# Example
|
|
# Using 70% autoextend threshold and 20% autoextend size, when a 1G
|
|
# thin pool exceeds 700M, it is extended to 1.2G, and when it exceeds
|
|
# 840M, it is extended to 1.44G:
|
|
# thin_pool_autoextend_threshold = 70
|
|
#
|
|
thin_pool_autoextend_threshold = 100
|
|
|
|
# Configuration option activation/thin_pool_autoextend_percent.
|
|
# Auto-extending a thin pool adds this percent extra space.
|
|
# The amount of additional space added to a thin pool is this
|
|
# percent of its current size.
|
|
#
|
|
# Example
|
|
# Using 70% autoextend threshold and 20% autoextend size, when a 1G
|
|
# thin pool exceeds 700M, it is extended to 1.2G, and when it exceeds
|
|
# 840M, it is extended to 1.44G:
|
|
# thin_pool_autoextend_percent = 20
|
|
#
|
|
thin_pool_autoextend_percent = 20
|
|
|
|
# Configuration option activation/vdo_pool_autoextend_threshold.
|
|
# Auto-extend a VDO pool when its usage exceeds this percent.
|
|
# Setting this to 100 disables automatic extension.
|
|
# The minimum value is 50 (a smaller value is treated as 50.)
|
|
# Also see vdo_pool_autoextend_percent.
|
|
# Automatic extension requires dmeventd to be monitoring the LV.
|
|
#
|
|
# Example
|
|
# Using 70% autoextend threshold and 20% autoextend size, when a 10G
|
|
# VDO pool exceeds 7G, it is extended to 12G, and when it exceeds
|
|
# 8.4G, it is extended to 14.4G:
|
|
# vdo_pool_autoextend_threshold = 70
|
|
#
|
|
# This configuration option has an automatic default value.
|
|
# vdo_pool_autoextend_threshold = 100
|
|
|
|
# Configuration option activation/vdo_pool_autoextend_percent.
|
|
# Auto-extending a VDO pool adds this percent extra space.
|
|
# The amount of additional space added to a VDO pool is this
|
|
# percent of its current size.
|
|
#
|
|
# Example
|
|
# Using 70% autoextend threshold and 20% autoextend size, when a 10G
|
|
# VDO pool exceeds 7G, it is extended to 12G, and when it exceeds
|
|
# 8.4G, it is extended to 14.4G:
|
|
# This configuration option has an automatic default value.
|
|
# vdo_pool_autoextend_percent = 20
|
|
|
|
# Configuration option activation/mlock_filter.
|
|
# Do not mlock these memory areas.
|
|
# While activating devices, I/O to devices being (re)configured is
|
|
# suspended. As a precaution against deadlocks, LVM pins memory it is
|
|
# using so it is not paged out, and will not require I/O to reread.
|
|
# Groups of pages that are known not to be accessed during activation
|
|
# do not need to be pinned into memory. Each string listed in this
|
|
# setting is compared against each line in /proc/self/maps, and the
|
|
# pages corresponding to lines that match are not pinned. On some
|
|
# systems, locale-archive was found to make up over 80% of the memory
|
|
# used by the process.
|
|
#
|
|
# Example
|
|
# mlock_filter = [ "locale/locale-archive", "gconv/gconv-modules.cache" ]
|
|
#
|
|
# This configuration option is advanced.
|
|
# This configuration option does not have a default value defined.
|
|
|
|
# Configuration option activation/use_mlockall.
|
|
# Use the old behavior of mlockall to pin all memory.
|
|
# Prior to version 2.02.62, LVM used mlockall() to pin the whole
|
|
# process's memory while activating devices.
|
|
# This configuration option has an automatic default value.
|
|
# use_mlockall = 0
|
|
|
|
# Configuration option activation/monitoring.
|
|
# Monitor LVs that are activated.
|
|
# The --ignoremonitoring option overrides this setting.
|
|
# When enabled, LVM will ask dmeventd to monitor activated LVs.
|
|
monitoring = 1
|
|
|
|
# Configuration option activation/polling_interval.
|
|
# Check pvmove or lvconvert progress at this interval (seconds).
|
|
# When pvmove or lvconvert must wait for the kernel to finish
|
|
# synchronising or merging data, they check and report progress at
|
|
# intervals of this number of seconds. If this is set to 0 and there
|
|
# is only one thing to wait for, there are no progress reports, but
|
|
# the process is awoken immediately once the operation is complete.
|
|
# This configuration option has an automatic default value.
|
|
# polling_interval = 15
|
|
|
|
# Configuration option activation/auto_set_activation_skip.
|
|
# Set the activation skip flag on new thin snapshot LVs.
|
|
# The --setactivationskip option overrides this setting.
|
|
# An LV can have a persistent 'activation skip' flag. The flag causes
|
|
# the LV to be skipped during normal activation. The lvchange/vgchange
|
|
# -K option is required to activate LVs that have the activation skip
|
|
# flag set. When this setting is enabled, the activation skip flag is
|
|
# set on new thin snapshot LVs.
|
|
# This configuration option has an automatic default value.
|
|
# auto_set_activation_skip = 1
|
|
|
|
# Configuration option activation/activation_mode.
|
|
# How LVs with missing devices are activated.
|
|
# The --activationmode option overrides this setting.
|
|
#
|
|
# Accepted values:
|
|
# complete
|
|
# Only allow activation of an LV if all of the Physical Volumes it
|
|
# uses are present. Other PVs in the Volume Group may be missing.
|
|
# degraded
|
|
# Like complete, but additionally RAID LVs of segment type raid1,
|
|
# raid4, raid5, radid6 and raid10 will be activated if there is no
|
|
# data loss, i.e. they have sufficient redundancy to present the
|
|
# entire addressable range of the Logical Volume.
|
|
# partial
|
|
# Allows the activation of any LV even if a missing or failed PV
|
|
# could cause data loss with a portion of the LV inaccessible.
|
|
# This setting should not normally be used, but may sometimes
|
|
# assist with data recovery.
|
|
#
|
|
activation_mode = "degraded"
|
|
|
|
# Configuration option activation/lock_start_list.
|
|
# Locking is started only for VGs selected by this list.
|
|
# The rules are the same as those for volume_list.
|
|
# This configuration option does not have a default value defined.
|
|
|
|
# Configuration option activation/auto_lock_start_list.
|
|
# Locking is auto-started only for VGs selected by this list.
|
|
# The rules are the same as those for auto_activation_volume_list.
|
|
# This configuration option does not have a default value defined.
|
|
}
|
|
|
|
# Configuration section metadata.
|
|
# This configuration section has an automatic default value.
|
|
# metadata {
|
|
|
|
# Configuration option metadata/check_pv_device_sizes.
|
|
# Check device sizes are not smaller than corresponding PV sizes.
|
|
# If device size is less than corresponding PV size found in metadata,
|
|
# there is always a risk of data loss. If this option is set, then LVM
|
|
# issues a warning message each time it finds that the device size is
|
|
# less than corresponding PV size. You should not disable this unless
|
|
# you are absolutely sure about what you are doing!
|
|
# This configuration option is advanced.
|
|
# This configuration option has an automatic default value.
|
|
# check_pv_device_sizes = 1
|
|
|
|
# Configuration option metadata/record_lvs_history.
|
|
# When enabled, LVM keeps history records about removed LVs in
|
|
# metadata. The information that is recorded in metadata for
|
|
# historical LVs is reduced when compared to original
|
|
# information kept in metadata for live LVs. Currently, this
|
|
# feature is supported for thin and thin snapshot LVs only.
|
|
# This configuration option has an automatic default value.
|
|
# record_lvs_history = 0
|
|
|
|
# Configuration option metadata/lvs_history_retention_time.
|
|
# Retention time in seconds after which a record about individual
|
|
# historical logical volume is automatically destroyed.
|
|
# A value of 0 disables this feature.
|
|
# This configuration option has an automatic default value.
|
|
# lvs_history_retention_time = 0
|
|
|
|
# Configuration option metadata/pvmetadatacopies.
|
|
# Number of copies of metadata to store on each PV.
|
|
# The --pvmetadatacopies option overrides this setting.
|
|
#
|
|
# Accepted values:
|
|
# 2
|
|
# Two copies of the VG metadata are stored on the PV, one at the
|
|
# front of the PV, and one at the end.
|
|
# 1
|
|
# One copy of VG metadata is stored at the front of the PV.
|
|
# 0
|
|
# No copies of VG metadata are stored on the PV. This may be
|
|
# useful for VGs containing large numbers of PVs.
|
|
#
|
|
# This configuration option is advanced.
|
|
# This configuration option has an automatic default value.
|
|
# pvmetadatacopies = 1
|
|
|
|
# Configuration option metadata/vgmetadatacopies.
|
|
# Number of copies of metadata to maintain for each VG.
|
|
# The --vgmetadatacopies option overrides this setting.
|
|
# If set to a non-zero value, LVM automatically chooses which of the
|
|
# available metadata areas to use to achieve the requested number of
|
|
# copies of the VG metadata. If you set a value larger than the the
|
|
# total number of metadata areas available, then metadata is stored in
|
|
# them all. The value 0 (unmanaged) disables this automatic management
|
|
# and allows you to control which metadata areas are used at the
|
|
# individual PV level using pvchange --metadataignore y|n.
|
|
# This configuration option has an automatic default value.
|
|
# vgmetadatacopies = 0
|
|
|
|
# Configuration option metadata/pvmetadatasize.
|
|
# The default size of the metadata area in units of 512 byte sectors.
|
|
# The metadata area begins at an offset of the page size from the start
|
|
# of the device. The first PE is by default at 1 MiB from the start of
|
|
# the device. The space between these is the default metadata area size.
|
|
# The actual size of the metadata area may be larger than what is set
|
|
# here due to default_data_alignment making the first PE a MiB multiple.
|
|
# The metadata area begins with a 512 byte header and is followed by a
|
|
# circular buffer used for VG metadata text. The maximum size of the VG
|
|
# metadata is about half the size of the metadata buffer. VGs with large
|
|
# numbers of PVs or LVs, or VGs containing complex LV structures, may need
|
|
# additional space for VG metadata. The --metadatasize option overrides
|
|
# this setting.
|
|
# This configuration option does not have a default value defined.
|
|
|
|
# Configuration option metadata/pvmetadataignore.
|
|
# Ignore metadata areas on a new PV.
|
|
# The --metadataignore option overrides this setting.
|
|
# If metadata areas on a PV are ignored, LVM will not store metadata
|
|
# in them.
|
|
# This configuration option is advanced.
|
|
# This configuration option has an automatic default value.
|
|
# pvmetadataignore = 0
|
|
|
|
# Configuration option metadata/stripesize.
|
|
# This configuration option is advanced.
|
|
# This configuration option has an automatic default value.
|
|
# stripesize = 64
|
|
# }
|
|
|
|
# Configuration section report.
|
|
# LVM report command output formatting.
|
|
# This configuration section has an automatic default value.
|
|
# report {
|
|
|
|
# Configuration option report/output_format.
|
|
# Format of LVM command's report output.
|
|
# If there is more than one report per command, then the format
|
|
# is applied for all reports. You can also change output format
|
|
# directly on command line using --reportformat option which
|
|
# has precedence over log/output_format setting.
|
|
# Accepted values:
|
|
# basic
|
|
# Original format with columns and rows. If there is more than
|
|
# one report per command, each report is prefixed with report's
|
|
# name for identification.
|
|
# json
|
|
# JSON format.
|
|
# This configuration option has an automatic default value.
|
|
# output_format = "basic"
|
|
|
|
# Configuration option report/compact_output.
|
|
# Do not print empty values for all report fields.
|
|
# If enabled, all fields that don't have a value set for any of the
|
|
# rows reported are skipped and not printed. Compact output is
|
|
# applicable only if report/buffered is enabled. If you need to
|
|
# compact only specified fields, use compact_output=0 and define
|
|
# report/compact_output_cols configuration setting instead.
|
|
# This configuration option has an automatic default value.
|
|
# compact_output = 0
|
|
|
|
# Configuration option report/compact_output_cols.
|
|
# Do not print empty values for specified report fields.
|
|
# If defined, specified fields that don't have a value set for any
|
|
# of the rows reported are skipped and not printed. Compact output
|
|
# is applicable only if report/buffered is enabled. If you need to
|
|
# compact all fields, use compact_output=1 instead in which case
|
|
# the compact_output_cols setting is then ignored.
|
|
# This configuration option has an automatic default value.
|
|
# compact_output_cols = ""
|
|
|
|
# Configuration option report/aligned.
|
|
# Align columns in report output.
|
|
# This configuration option has an automatic default value.
|
|
# aligned = 1
|
|
|
|
# Configuration option report/buffered.
|
|
# Buffer report output.
|
|
# When buffered reporting is used, the report's content is appended
|
|
# incrementally to include each object being reported until the report
|
|
# is flushed to output which normally happens at the end of command
|
|
# execution. Otherwise, if buffering is not used, each object is
|
|
# reported as soon as its processing is finished.
|
|
# This configuration option has an automatic default value.
|
|
# buffered = 1
|
|
|
|
# Configuration option report/headings.
|
|
# Show headings for columns on report.
|
|
# This configuration option has an automatic default value.
|
|
# headings = 1
|
|
|
|
# Configuration option report/separator.
|
|
# A separator to use on report after each field.
|
|
# This configuration option has an automatic default value.
|
|
# separator = " "
|
|
|
|
# Configuration option report/list_item_separator.
|
|
# A separator to use for list items when reported.
|
|
# This configuration option has an automatic default value.
|
|
# list_item_separator = ","
|
|
|
|
# Configuration option report/prefixes.
|
|
# Use a field name prefix for each field reported.
|
|
# This configuration option has an automatic default value.
|
|
# prefixes = 0
|
|
|
|
# Configuration option report/quoted.
|
|
# Quote field values when using field name prefixes.
|
|
# This configuration option has an automatic default value.
|
|
# quoted = 1
|
|
|
|
# Configuration option report/columns_as_rows.
|
|
# Output each column as a row.
|
|
# If set, this also implies report/prefixes=1.
|
|
# This configuration option has an automatic default value.
|
|
# columns_as_rows = 0
|
|
|
|
# Configuration option report/binary_values_as_numeric.
|
|
# Use binary values 0 or 1 instead of descriptive literal values.
|
|
# For columns that have exactly two valid values to report
|
|
# (not counting the 'unknown' value which denotes that the
|
|
# value could not be determined).
|
|
# This configuration option has an automatic default value.
|
|
# binary_values_as_numeric = 0
|
|
|
|
# Configuration option report/time_format.
|
|
# Set time format for fields reporting time values.
|
|
# Format specification is a string which may contain special character
|
|
# sequences and ordinary character sequences. Ordinary character
|
|
# sequences are copied verbatim. Each special character sequence is
|
|
# introduced by the '%' character and such sequence is then
|
|
# substituted with a value as described below.
|
|
#
|
|
# Accepted values:
|
|
# %a
|
|
# The abbreviated name of the day of the week according to the
|
|
# current locale.
|
|
# %A
|
|
# The full name of the day of the week according to the current
|
|
# locale.
|
|
# %b
|
|
# The abbreviated month name according to the current locale.
|
|
# %B
|
|
# The full month name according to the current locale.
|
|
# %c
|
|
# The preferred date and time representation for the current
|
|
# locale (alt E)
|
|
# %C
|
|
# The century number (year/100) as a 2-digit integer. (alt E)
|
|
# %d
|
|
# The day of the month as a decimal number (range 01 to 31).
|
|
# (alt O)
|
|
# %D
|
|
# Equivalent to %m/%d/%y. (For Americans only. Americans should
|
|
# note that in other countries%d/%m/%y is rather common. This
|
|
# means that in international context this format is ambiguous and
|
|
# should not be used.
|
|
# %e
|
|
# Like %d, the day of the month as a decimal number, but a leading
|
|
# zero is replaced by a space. (alt O)
|
|
# %E
|
|
# Modifier: use alternative local-dependent representation if
|
|
# available.
|
|
# %F
|
|
# Equivalent to %Y-%m-%d (the ISO 8601 date format).
|
|
# %G
|
|
# The ISO 8601 week-based year with century as adecimal number.
|
|
# The 4-digit year corresponding to the ISO week number (see %V).
|
|
# This has the same format and value as %Y, except that if the
|
|
# ISO week number belongs to the previous or next year, that year
|
|
# is used instead.
|
|
# %g
|
|
# Like %G, but without century, that is, with a 2-digit year
|
|
# (00-99).
|
|
# %h
|
|
# Equivalent to %b.
|
|
# %H
|
|
# The hour as a decimal number using a 24-hour clock
|
|
# (range 00 to 23). (alt O)
|
|
# %I
|
|
# The hour as a decimal number using a 12-hour clock
|
|
# (range 01 to 12). (alt O)
|
|
# %j
|
|
# The day of the year as a decimal number (range 001 to 366).
|
|
# %k
|
|
# The hour (24-hour clock) as a decimal number (range 0 to 23);
|
|
# single digits are preceded by a blank. (See also %H.)
|
|
# %l
|
|
# The hour (12-hour clock) as a decimal number (range 1 to 12);
|
|
# single digits are preceded by a blank. (See also %I.)
|
|
# %m
|
|
# The month as a decimal number (range 01 to 12). (alt O)
|
|
# %M
|
|
# The minute as a decimal number (range 00 to 59). (alt O)
|
|
# %O
|
|
# Modifier: use alternative numeric symbols.
|
|
# %p
|
|
# Either "AM" or "PM" according to the given time value,
|
|
# or the corresponding strings for the current locale. Noon is
|
|
# treated as "PM" and midnight as "AM".
|
|
# %P
|
|
# Like %p but in lowercase: "am" or "pm" or a corresponding
|
|
# string for the current locale.
|
|
# %r
|
|
# The time in a.m. or p.m. notation. In the POSIX locale this is
|
|
# equivalent to %I:%M:%S %p.
|
|
# %R
|
|
# The time in 24-hour notation (%H:%M). For a version including
|
|
# the seconds, see %T below.
|
|
# %s
|
|
# The number of seconds since the Epoch,
|
|
# 1970-01-01 00:00:00 +0000 (UTC)
|
|
# %S
|
|
# The second as a decimal number (range 00 to 60). (The range is
|
|
# up to 60 to allow for occasional leap seconds.) (alt O)
|
|
# %t
|
|
# A tab character.
|
|
# %T
|
|
# The time in 24-hour notation (%H:%M:%S).
|
|
# %u
|
|
# The day of the week as a decimal, range 1 to 7, Monday being 1.
|
|
# See also %w. (alt O)
|
|
# %U
|
|
# The week number of the current year as a decimal number,
|
|
# range 00 to 53, starting with the first Sunday as the first
|
|
# day of week 01. See also %V and %W. (alt O)
|
|
# %V
|
|
# The ISO 8601 week number of the current year as a decimal number,
|
|
# range 01 to 53, where week 1 is the first week that has at least
|
|
# 4 days in the new year. See also %U and %W. (alt O)
|
|
# %w
|
|
# The day of the week as a decimal, range 0 to 6, Sunday being 0.
|
|
# See also %u. (alt O)
|
|
# %W
|
|
# The week number of the current year as a decimal number,
|
|
# range 00 to 53, starting with the first Monday as the first day
|
|
# of week 01. (alt O)
|
|
# %x
|
|
# The preferred date representation for the current locale without
|
|
# the time. (alt E)
|
|
# %X
|
|
# The preferred time representation for the current locale without
|
|
# the date. (alt E)
|
|
# %y
|
|
# The year as a decimal number without a century (range 00 to 99).
|
|
# (alt E, alt O)
|
|
# %Y
|
|
# The year as a decimal number including the century. (alt E)
|
|
# %z
|
|
# The +hhmm or -hhmm numeric timezone (that is, the hour and minute
|
|
# offset from UTC).
|
|
# %Z
|
|
# The timezone name or abbreviation.
|
|
# %%
|
|
# A literal '%' character.
|
|
#
|
|
# This configuration option has an automatic default value.
|
|
# time_format = "%Y-%m-%d %T %z"
|
|
|
|
# Configuration option report/devtypes_sort.
|
|
# List of columns to sort by when reporting 'lvm devtypes' command.
|
|
# See 'lvm devtypes -o help' for the list of possible fields.
|
|
# This configuration option has an automatic default value.
|
|
# devtypes_sort = "devtype_name"
|
|
|
|
# Configuration option report/devtypes_cols.
|
|
# List of columns to report for 'lvm devtypes' command.
|
|
# See 'lvm devtypes -o help' for the list of possible fields.
|
|
# This configuration option has an automatic default value.
|
|
# devtypes_cols = "devtype_name,devtype_max_partitions,devtype_description"
|
|
|
|
# Configuration option report/devtypes_cols_verbose.
|
|
# List of columns to report for 'lvm devtypes' command in verbose mode.
|
|
# See 'lvm devtypes -o help' for the list of possible fields.
|
|
# This configuration option has an automatic default value.
|
|
# devtypes_cols_verbose = "devtype_name,devtype_max_partitions,devtype_description"
|
|
|
|
# Configuration option report/lvs_sort.
|
|
# List of columns to sort by when reporting 'lvs' command.
|
|
# See 'lvs -o help' for the list of possible fields.
|
|
# This configuration option has an automatic default value.
|
|
# lvs_sort = "vg_name,lv_name"
|
|
|
|
# Configuration option report/lvs_cols.
|
|
# List of columns to report for 'lvs' command.
|
|
# See 'lvs -o help' for the list of possible fields.
|
|
# This configuration option has an automatic default value.
|
|
# lvs_cols = "lv_name,vg_name,lv_attr,lv_size,pool_lv,origin,data_percent,metadata_percent,move_pv,mirror_log,copy_percent,convert_lv"
|
|
|
|
# Configuration option report/lvs_cols_verbose.
|
|
# List of columns to report for 'lvs' command in verbose mode.
|
|
# See 'lvs -o help' for the list of possible fields.
|
|
# This configuration option has an automatic default value.
|
|
# lvs_cols_verbose = "lv_name,vg_name,seg_count,lv_attr,lv_size,lv_major,lv_minor,lv_kernel_major,lv_kernel_minor,pool_lv,origin,data_percent,metadata_percent,move_pv,copy_percent,mirror_log,convert_lv,lv_uuid,lv_profile"
|
|
|
|
# Configuration option report/vgs_sort.
|
|
# List of columns to sort by when reporting 'vgs' command.
|
|
# See 'vgs -o help' for the list of possible fields.
|
|
# This configuration option has an automatic default value.
|
|
# vgs_sort = "vg_name"
|
|
|
|
# Configuration option report/vgs_cols.
|
|
# List of columns to report for 'vgs' command.
|
|
# See 'vgs -o help' for the list of possible fields.
|
|
# This configuration option has an automatic default value.
|
|
# vgs_cols = "vg_name,pv_count,lv_count,snap_count,vg_attr,vg_size,vg_free"
|
|
|
|
# Configuration option report/vgs_cols_verbose.
|
|
# List of columns to report for 'vgs' command in verbose mode.
|
|
# See 'vgs -o help' for the list of possible fields.
|
|
# This configuration option has an automatic default value.
|
|
# vgs_cols_verbose = "vg_name,vg_attr,vg_extent_size,pv_count,lv_count,snap_count,vg_size,vg_free,vg_uuid,vg_profile"
|
|
|
|
# Configuration option report/pvs_sort.
|
|
# List of columns to sort by when reporting 'pvs' command.
|
|
# See 'pvs -o help' for the list of possible fields.
|
|
# This configuration option has an automatic default value.
|
|
# pvs_sort = "pv_name"
|
|
|
|
# Configuration option report/pvs_cols.
|
|
# List of columns to report for 'pvs' command.
|
|
# See 'pvs -o help' for the list of possible fields.
|
|
# This configuration option has an automatic default value.
|
|
# pvs_cols = "pv_name,vg_name,pv_fmt,pv_attr,pv_size,pv_free"
|
|
|
|
# Configuration option report/pvs_cols_verbose.
|
|
# List of columns to report for 'pvs' command in verbose mode.
|
|
# See 'pvs -o help' for the list of possible fields.
|
|
# This configuration option has an automatic default value.
|
|
# pvs_cols_verbose = "pv_name,vg_name,pv_fmt,pv_attr,pv_size,pv_free,dev_size,pv_uuid"
|
|
|
|
# Configuration option report/segs_sort.
|
|
# List of columns to sort by when reporting 'lvs --segments' command.
|
|
# See 'lvs --segments -o help' for the list of possible fields.
|
|
# This configuration option has an automatic default value.
|
|
# segs_sort = "vg_name,lv_name,seg_start"
|
|
|
|
# Configuration option report/segs_cols.
|
|
# List of columns to report for 'lvs --segments' command.
|
|
# See 'lvs --segments -o help' for the list of possible fields.
|
|
# This configuration option has an automatic default value.
|
|
# segs_cols = "lv_name,vg_name,lv_attr,stripes,segtype,seg_size"
|
|
|
|
# Configuration option report/segs_cols_verbose.
|
|
# List of columns to report for 'lvs --segments' command in verbose mode.
|
|
# See 'lvs --segments -o help' for the list of possible fields.
|
|
# This configuration option has an automatic default value.
|
|
# segs_cols_verbose = "lv_name,vg_name,lv_attr,seg_start,seg_size,stripes,segtype,stripesize,chunksize"
|
|
|
|
# Configuration option report/pvsegs_sort.
|
|
# List of columns to sort by when reporting 'pvs --segments' command.
|
|
# See 'pvs --segments -o help' for the list of possible fields.
|
|
# This configuration option has an automatic default value.
|
|
# pvsegs_sort = "pv_name,pvseg_start"
|
|
|
|
# Configuration option report/pvsegs_cols.
|
|
# List of columns to sort by when reporting 'pvs --segments' command.
|
|
# See 'pvs --segments -o help' for the list of possible fields.
|
|
# This configuration option has an automatic default value.
|
|
# pvsegs_cols = "pv_name,vg_name,pv_fmt,pv_attr,pv_size,pv_free,pvseg_start,pvseg_size"
|
|
|
|
# Configuration option report/pvsegs_cols_verbose.
|
|
# List of columns to sort by when reporting 'pvs --segments' command in verbose mode.
|
|
# See 'pvs --segments -o help' for the list of possible fields.
|
|
# This configuration option has an automatic default value.
|
|
# pvsegs_cols_verbose = "pv_name,vg_name,pv_fmt,pv_attr,pv_size,pv_free,pvseg_start,pvseg_size,lv_name,seg_start_pe,segtype,seg_pe_ranges"
|
|
|
|
# Configuration option report/vgs_cols_full.
|
|
# List of columns to report for lvm fullreport's 'vgs' subreport.
|
|
# See 'vgs -o help' for the list of possible fields.
|
|
# This configuration option has an automatic default value.
|
|
# vgs_cols_full = "vg_all"
|
|
|
|
# Configuration option report/pvs_cols_full.
|
|
# List of columns to report for lvm fullreport's 'vgs' subreport.
|
|
# See 'pvs -o help' for the list of possible fields.
|
|
# This configuration option has an automatic default value.
|
|
# pvs_cols_full = "pv_all"
|
|
|
|
# Configuration option report/lvs_cols_full.
|
|
# List of columns to report for lvm fullreport's 'lvs' subreport.
|
|
# See 'lvs -o help' for the list of possible fields.
|
|
# This configuration option has an automatic default value.
|
|
# lvs_cols_full = "lv_all"
|
|
|
|
# Configuration option report/pvsegs_cols_full.
|
|
# List of columns to report for lvm fullreport's 'pvseg' subreport.
|
|
# See 'pvs --segments -o help' for the list of possible fields.
|
|
# This configuration option has an automatic default value.
|
|
# pvsegs_cols_full = "pvseg_all,pv_uuid,lv_uuid"
|
|
|
|
# Configuration option report/segs_cols_full.
|
|
# List of columns to report for lvm fullreport's 'seg' subreport.
|
|
# See 'lvs --segments -o help' for the list of possible fields.
|
|
# This configuration option has an automatic default value.
|
|
# segs_cols_full = "seg_all,lv_uuid"
|
|
|
|
# Configuration option report/vgs_sort_full.
|
|
# List of columns to sort by when reporting lvm fullreport's 'vgs' subreport.
|
|
# See 'vgs -o help' for the list of possible fields.
|
|
# This configuration option has an automatic default value.
|
|
# vgs_sort_full = "vg_name"
|
|
|
|
# Configuration option report/pvs_sort_full.
|
|
# List of columns to sort by when reporting lvm fullreport's 'vgs' subreport.
|
|
# See 'pvs -o help' for the list of possible fields.
|
|
# This configuration option has an automatic default value.
|
|
# pvs_sort_full = "pv_name"
|
|
|
|
# Configuration option report/lvs_sort_full.
|
|
# List of columns to sort by when reporting lvm fullreport's 'lvs' subreport.
|
|
# See 'lvs -o help' for the list of possible fields.
|
|
# This configuration option has an automatic default value.
|
|
# lvs_sort_full = "vg_name,lv_name"
|
|
|
|
# Configuration option report/pvsegs_sort_full.
|
|
# List of columns to sort by when reporting for lvm fullreport's 'pvseg' subreport.
|
|
# See 'pvs --segments -o help' for the list of possible fields.
|
|
# This configuration option has an automatic default value.
|
|
# pvsegs_sort_full = "pv_uuid,pvseg_start"
|
|
|
|
# Configuration option report/segs_sort_full.
|
|
# List of columns to sort by when reporting lvm fullreport's 'seg' subreport.
|
|
# See 'lvs --segments -o help' for the list of possible fields.
|
|
# This configuration option has an automatic default value.
|
|
# segs_sort_full = "lv_uuid,seg_start"
|
|
|
|
# Configuration option report/mark_hidden_devices.
|
|
# Use brackets [] to mark hidden devices.
|
|
# This configuration option has an automatic default value.
|
|
# mark_hidden_devices = 1
|
|
|
|
# Configuration option report/two_word_unknown_device.
|
|
# Use the two words 'unknown device' in place of '[unknown]'.
|
|
# This is displayed when the device for a PV is not known.
|
|
# This configuration option has an automatic default value.
|
|
# two_word_unknown_device = 0
|
|
# }
|
|
|
|
# Configuration section dmeventd.
|
|
# Settings for the LVM event daemon.
|
|
dmeventd {
|
|
|
|
# Configuration option dmeventd/mirror_library.
|
|
# The library dmeventd uses when monitoring a mirror device.
|
|
# libdevmapper-event-lvm2mirror.so attempts to recover from
|
|
# failures. It removes failed devices from a volume group and
|
|
# reconfigures a mirror as necessary. If no mirror library is
|
|
# provided, mirrors are not monitored through dmeventd.
|
|
# This configuration option has an automatic default value.
|
|
# mirror_library = "libdevmapper-event-lvm2mirror.so"
|
|
|
|
# Configuration option dmeventd/raid_library.
|
|
# This configuration option has an automatic default value.
|
|
# raid_library = "libdevmapper-event-lvm2raid.so"
|
|
|
|
# Configuration option dmeventd/snapshot_library.
|
|
# The library dmeventd uses when monitoring a snapshot device.
|
|
# libdevmapper-event-lvm2snapshot.so monitors the filling of snapshots
|
|
# and emits a warning through syslog when the usage exceeds 80%. The
|
|
# warning is repeated when 85%, 90% and 95% of the snapshot is filled.
|
|
# This configuration option has an automatic default value.
|
|
# snapshot_library = "libdevmapper-event-lvm2snapshot.so"
|
|
|
|
# Configuration option dmeventd/thin_library.
|
|
# The library dmeventd uses when monitoring a thin device.
|
|
# libdevmapper-event-lvm2thin.so monitors the filling of a pool
|
|
# and emits a warning through syslog when the usage exceeds 80%. The
|
|
# warning is repeated when 85%, 90% and 95% of the pool is filled.
|
|
# This configuration option has an automatic default value.
|
|
# thin_library = "libdevmapper-event-lvm2thin.so"
|
|
|
|
# Configuration option dmeventd/thin_command.
|
|
# The plugin runs command with each 5% increment when thin-pool data volume
|
|
# or metadata volume gets above 50%.
|
|
# Command which starts with 'lvm ' prefix is internal lvm command.
|
|
# You can write your own handler to customise behaviour in more details.
|
|
# User handler is specified with the full path starting with '/'.
|
|
# This configuration option has an automatic default value.
|
|
# thin_command = "lvm lvextend --use-policies"
|
|
|
|
# Configuration option dmeventd/vdo_library.
|
|
# The library dmeventd uses when monitoring a VDO pool device.
|
|
# libdevmapper-event-lvm2vdo.so monitors the filling of a pool
|
|
# and emits a warning through syslog when the usage exceeds 80%. The
|
|
# warning is repeated when 85%, 90% and 95% of the pool is filled.
|
|
# This configuration option has an automatic default value.
|
|
# vdo_library = "libdevmapper-event-lvm2vdo.so"
|
|
|
|
# Configuration option dmeventd/vdo_command.
|
|
# The plugin runs command with each 5% increment when VDO pool volume
|
|
# gets above 50%.
|
|
# Command which starts with 'lvm ' prefix is internal lvm command.
|
|
# You can write your own handler to customise behaviour in more details.
|
|
# User handler is specified with the full path starting with '/'.
|
|
# This configuration option has an automatic default value.
|
|
# vdo_command = "lvm lvextend --use-policies"
|
|
|
|
# Configuration option dmeventd/executable.
|
|
# The full path to the dmeventd binary.
|
|
# This configuration option has an automatic default value.
|
|
# executable = "@DMEVENTD_PATH@"
|
|
}
|
|
|
|
# Configuration section tags.
|
|
# Host tag settings.
|
|
# This configuration section has an automatic default value.
|
|
# tags {
|
|
|
|
# Configuration option tags/hosttags.
|
|
# Create a host tag using the machine name.
|
|
# The machine name is nodename returned by uname(2).
|
|
# This configuration option has an automatic default value.
|
|
# hosttags = 0
|
|
|
|
# Configuration section tags/<tag>.
|
|
# Replace this subsection name with a custom tag name.
|
|
# Multiple subsections like this can be created. The '@' prefix for
|
|
# tags is optional. This subsection can contain host_list, which is a
|
|
# list of machine names. If the name of the local machine is found in
|
|
# host_list, then the name of this subsection is used as a tag and is
|
|
# applied to the local machine as a 'host tag'. If this subsection is
|
|
# empty (has no host_list), then the subsection name is always applied
|
|
# as a 'host tag'.
|
|
#
|
|
# Example
|
|
# The host tag foo is given to all hosts, and the host tag
|
|
# bar is given to the hosts named machine1 and machine2.
|
|
# tags { foo { } bar { host_list = [ "machine1", "machine2" ] } }
|
|
#
|
|
# This configuration section has variable name.
|
|
# This configuration section has an automatic default value.
|
|
# tag {
|
|
|
|
# Configuration option tags/<tag>/host_list.
|
|
# A list of machine names.
|
|
# These machine names are compared to the nodename returned
|
|
# by uname(2). If the local machine name matches an entry in
|
|
# this list, the name of the subsection is applied to the
|
|
# machine as a 'host tag'.
|
|
# This configuration option does not have a default value defined.
|
|
# }
|
|
# }
|