mirror of
git://sourceware.org/git/lvm2.git
synced 2024-12-22 17:35:59 +03:00
ab789c1bcf
The lvchange has both -k/--setactivationskip and -K/--ignoreactivationskip option available for use. The vgchange has only -K/--ignoreactivationskip, but not the -k/--setactivationskip as the ACTIVATION_SKIP flag is an LV property, not a VG one and so we change it only by using the lvchange...
227 lines
8.6 KiB
Groff
227 lines
8.6 KiB
Groff
.TH VGCHANGE 8 "LVM TOOLS #VERSION#" "Sistina Software UK" \" -*- nroff -*-
|
|
.SH NAME
|
|
vgchange \- change attributes of a volume group
|
|
.SH SYNOPSIS
|
|
.B vgchange
|
|
.RB [ \-\-addtag
|
|
.IR Tag ]
|
|
.RB [ \-\-alloc
|
|
.IR AllocationPolicy ]
|
|
.RB [ \-A | \-\-autobackup
|
|
.RI { y | n }]
|
|
.RB [ \-a | \-\-activate
|
|
.RI [ a | e | l ]
|
|
.RI { y | n }]
|
|
.RB [ \-K | \-\-ignoreactivationskip ]
|
|
.RB [ \-\-monitor
|
|
.RI { y | n }]
|
|
.RB [ \-\-poll
|
|
.RI { y | n }]
|
|
.RB [ \-c | \-\-clustered
|
|
.RI { y | n }]
|
|
.RB [ \-u | \-\-uuid ]
|
|
.RB [ \-d | \-\-debug ]
|
|
.RB [ \-\-deltag
|
|
.IR Tag ]
|
|
.RB [ \-\-profile
|
|
.IR ProfileName ]
|
|
.RB [ \-\-detachprofile ]
|
|
.RB [ \-h | \-\-help ]
|
|
.RB [ \-\-ignorelockingfailure ]
|
|
.RB [ \-\-ignoremonitoring ]
|
|
.RB [ \-\-sysinit ]
|
|
.RB [ \-\-noudevsync ]
|
|
.RB [ \-l | \-\-logicalvolume
|
|
.IR MaxLogicalVolumes ]
|
|
.RB [ -p | \-\-maxphysicalvolumes
|
|
.IR MaxPhysicalVolumes ]
|
|
.RB [ \-\- [ vg ] metadatacopies ]
|
|
.IR NumberOfCopies | unmanaged | all ]
|
|
.RB [ \-P | \-\-partial ]
|
|
.RB [ \-s | \-\-physicalextentsize
|
|
.IR PhysicalExtentSize [ bBsSkKmMgGtTpPeE ]]
|
|
.RB [ \-\-refresh ]
|
|
.RB [ -t | \-\-test ]
|
|
.RB [ \-v | \-\-verbose ]
|
|
.RB [ \-\-version ]
|
|
.RB [ \-x | \-\-resizeable
|
|
.RI { y | n }]
|
|
.RI [ VolumeGroupName ...]
|
|
.SH DESCRIPTION
|
|
vgchange allows you to change the attributes of one or more
|
|
volume groups. Its main purpose is to activate and deactivate
|
|
.IR VolumeGroupName ,
|
|
or all volume groups if none is specified. Only active volume groups
|
|
are subject to changes and allow access to their logical volumes.
|
|
[Not yet implemented: During volume group activation, if
|
|
.B vgchange
|
|
recognizes snapshot logical volumes which were dropped because they ran
|
|
out of space, it displays a message informing the administrator that such
|
|
snapshots should be removed (see
|
|
.BR lvremove (8)).
|
|
]
|
|
.SH OPTIONS
|
|
See \fBlvm\fP(8) for common options.
|
|
.TP
|
|
.BR \-A ", " \-\-autobackup " {" \fIy | \fIn }
|
|
Controls automatic backup of metadata after the change. See
|
|
.BR vgcfgbackup (8).
|
|
Default is yes.
|
|
.TP
|
|
.BR \-a ", " \-\-activate " [" \fIa | \fIe | \fIl ]{ \fIy | \fIn }
|
|
Controls the availability of the logical volumes in the volume
|
|
group for input/output.
|
|
In other words, makes the logical volumes known/unknown to the kernel.
|
|
If autoactivation option is used (\-aay), each logical volume in
|
|
the volume group is activated only if it matches an item in the
|
|
activation/auto_activation_volume_list set in lvm.conf. If this
|
|
list is not set, then all volumes are considered for autoactivation.
|
|
The autoactivation is not yet supported for partial or clustered
|
|
volume groups.
|
|
.IP
|
|
If clustered locking is enabled, add 'e' to activate/deactivate
|
|
exclusively on one node or 'l' to activate/deactivate only
|
|
on the local node.
|
|
Logical volumes with single-host snapshots are always activated
|
|
exclusively because they can only be used on one node at once.
|
|
.TP
|
|
.BR \-K ", " \-\-ignoreactivationskip
|
|
Ignore the flag to skip Logical Volumes during activation.
|
|
.TP
|
|
.BR \-c ", " \-\-clustered " {" \fIy | \fIn }
|
|
If clustered locking is enabled, this indicates whether this
|
|
Volume Group is shared with other nodes in the cluster or whether
|
|
it contains only local disks that are not visible on the other nodes.
|
|
If the cluster infrastructure is unavailable on a particular node at a
|
|
particular time, you may still be able to use Volume Groups that
|
|
are not marked as clustered.
|
|
.TP
|
|
.BR \-\-detachprofile
|
|
Detach any configuration profiles attached to given Volume Groups.
|
|
See also \fBlvm\fP(8) and \fBlvm.conf\fP(5) for more
|
|
information about configuration profiles.
|
|
.TP
|
|
.BR \-u ", " \-\-uuid
|
|
Generate new random UUID for specified Volume Groups.
|
|
.TP
|
|
.BR \-\-monitor " {" \fIy | \fIn }
|
|
Start or stop monitoring a mirrored or snapshot logical volume with
|
|
dmeventd, if it is installed.
|
|
If a device used by a monitored mirror reports an I/O error,
|
|
the failure is handled according to
|
|
.B mirror_image_fault_policy
|
|
and
|
|
.B mirror_log_fault_policy
|
|
set in
|
|
.BR lvm.conf (5).
|
|
.TP
|
|
.BR \-\-poll " {" \fIy | \fIn }
|
|
Without polling a logical volume's backgrounded transformation process
|
|
will never complete. If there is an incomplete pvmove or lvconvert (for
|
|
example, on rebooting after a crash), use \fB\-\-poll y\fP to restart the
|
|
process from its last checkpoint. However, it may not be appropriate to
|
|
immediately poll a logical volume when it is activated, use
|
|
\fB\-\-poll n\fP to defer and then \fB\-\-poll y\fP to restart the process.
|
|
.TP
|
|
.BR \-\-sysinit
|
|
Indicates that vgchange(8) is being invoked from early system initialisation
|
|
scripts (e.g. rc.sysinit or an initrd), before writeable filesystems are
|
|
available. As such, some functionality needs to be disabled and this option
|
|
acts as a shortcut which selects an appropriate set of options. Currently
|
|
this is equivalent to using
|
|
.BR \-\-ignorelockingfailure ,
|
|
.BR \-\-ignoremonitoring ,
|
|
.B \-\-poll n
|
|
and setting \fBLVM_SUPPRESS_LOCKING_FAILURE_MESSAGES\fP
|
|
environment variable.
|
|
|
|
If \fB\-\-sysinit\fP is used in conjunction with lvmetad(8) enabled and running,
|
|
autoactivation is preferred over manual activation via direct vgchange call.
|
|
Logical volumes are autoactivated according to auto_activation_volume_list
|
|
set in lvm.conf(5).
|
|
.TP
|
|
.BR \-\-noudevsync
|
|
Disable udev synchronisation. The
|
|
process will not wait for notification from udev.
|
|
It will continue irrespective of any possible udev processing
|
|
in the background. You should only use this if udev is not running
|
|
or has rules that ignore the devices LVM2 creates.
|
|
.TP
|
|
.BR \-\-ignoremonitoring
|
|
Make no attempt to interact with dmeventd unless
|
|
.BR \-\-monitor
|
|
is specified.
|
|
Do not use this if dmeventd is already monitoring a device.
|
|
.TP
|
|
.BR \-l ", " \-\-logicalvolume " " \fIMaxLogicalVolumes
|
|
Changes the maximum logical volume number of an existing inactive
|
|
volume group.
|
|
.TP
|
|
.BR \-p ", " \-\-maxphysicalvolumes " " \fIMaxPhysicalVolumes
|
|
Changes the maximum number of physical volumes that can belong
|
|
to this volume group.
|
|
For volume groups with metadata in lvm1 format, the limit is 255.
|
|
If the metadata uses lvm2 format, the value 0 removes this restriction:
|
|
there is then no limit. If you have a large number of physical volumes in
|
|
a volume group with metadata in lvm2 format, for tool performance reasons,
|
|
you should consider some use of \fB--pvmetadatacopies 0\fP as described in
|
|
\fBpvcreate(8)\fP, and/or use \fB--vgmetadatacopies\fP.
|
|
.TP
|
|
.BR \-\- [ vg ] metadatacopies " " \fINumberOfCopies | \fIunmanaged | \fIall
|
|
Sets the desired number of metadata copies in the volume group. If set to
|
|
a non-zero value, LVM will automatically manage the 'metadataignore'
|
|
flags on the physical volumes (see \fBpvchange\fP or \fBpvcreate --metadataignore\fP) in order
|
|
to achieve \fINumberOfCopies\fP copies of metadata. If set to \fIunmanaged\fP,
|
|
LVM will not automatically manage the 'metadataignore' flags. If set to
|
|
\fIall\fP, LVM will first clear all of the 'metadataignore' flags on all
|
|
metadata areas in the volume group, then set the value to \fIunmanaged\fP.
|
|
The \fBvgmetadatacopies\fP option is useful for volume groups containing
|
|
large numbers of physical volumes with metadata as it may be used to
|
|
minimize metadata read and write overhead.
|
|
.TP
|
|
.BR \-s ", " \-\-physicalextentsize " " \fIPhysicalExtentSize [ \fIBbBsSkKmMgGtTpPeE ]
|
|
Changes the physical extent size on physical volumes of this volume group.
|
|
A size suffix (k for kilobytes up to t for terabytes) is optional, megabytes
|
|
is the default if no suffix is present.
|
|
The default is 4 MiB and it must be at least 1 KiB and a power of 2.
|
|
|
|
Before increasing the physical extent size, you might need to use lvresize,
|
|
pvresize and/or pvmove so that everything fits. For example, every
|
|
contiguous range of extents used in a logical volume must start and
|
|
end on an extent boundary.
|
|
|
|
If the volume group metadata uses lvm1 format, extents can vary in size from
|
|
8KiB to 16GiB and there is a limit of 65534 extents in each logical volume.
|
|
The default of 4 MiB leads to a maximum logical volume size of around 256GiB.
|
|
|
|
If the volume group metadata uses lvm2 format those restrictions do not apply,
|
|
but having a large number of extents will slow down the tools but have no
|
|
impact on I/O performance to the logical volume. The smallest PE is 1KiB.
|
|
|
|
The 2.4 kernel has a limitation of 2TiB per block device.
|
|
.TP
|
|
.BR \-\-refresh
|
|
If any logical volume in the volume group is active, reload its metadata.
|
|
This is not necessary in normal operation, but may be useful
|
|
if something has gone wrong or if you're doing clustering
|
|
manually without a clustered lock manager.
|
|
.TP
|
|
.BR \-x ", " \-\-resizeable " {" \fIy | \fIn }
|
|
Enables or disables the extension/reduction of this volume group
|
|
with/by physical volumes.
|
|
.SH Examples
|
|
To activate all known volume groups in the system:
|
|
.sp
|
|
.B vgchange -a y
|
|
|
|
To change the maximum number of logical volumes of inactive volume group
|
|
vg00 to 128.
|
|
.sp
|
|
.B vgchange -l 128 /dev/vg00
|
|
|
|
|
|
.SH SEE ALSO
|
|
.BR lvchange (8),
|
|
.BR lvm (8),
|
|
.BR vgcreate (8)
|