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These settings are in the "unsupported" group:
devices/loopfiles
log/activate_file
metadata/disk_areas (section)
metadata/disk_areas/<disk_area> (section)
metadata/disk_areas/<disk_area>/size
metadata/disk_areas/<disk_area>/id
These settings are in the "advanced" group:
devices/dir
devices/scan
devices/types
global/proc
activation/missing_stripe_filler
activation/mlock_filter
metadata/pvmetadatacopies
metadata/pvmetadataignore
metadata/stripesize
metadata/dirs
Also, this patch causes the --ignoreunsupported and --ignoreadvanced
switches to be honoured for all config types (lvmconfig --type).
By default, the --type current and --type diff display unsupported
settings, the other types ignore them - this patch also introduces
--showunsupported switch for all these other types to display even
unsupported settings in their output if needed.
lvmconfig --type list displays plain list of configuration settings.
Some of the existing decorations can be used (--withsummary and
--withversions) as well as existing options/switches (--ignoreadvanced,
--ignoreunsupported, --ignorelocal, --atversion).
For example (displaying only "config" section so the list is not long):
$lvmconfig --type list config
config/checks
config/abort_on_errors
config/profile_dir
$ lvmconfig --type list --withsummary config
config/checks - If enabled, any LVM configuration mismatch is reported.
config/abort_on_errors - Abort the LVM process if a configuration mismatch is found.
config/profile_dir - Directory where LVM looks for configuration profiles.
$ lvmconfig -l config
config/checks - If enabled, any LVM configuration mismatch is reported.
config/abort_on_errors - Abort the LVM process if a configuration mismatch is found.
config/profile_dir - Directory where LVM looks for configuration profiles.
$ lvmconfig --type list --withsummary --withversions config
config/checks - If enabled, any LVM configuration mismatch is reported. [2.2.99]
config/abort_on_errors - Abort the LVM process if a configuration mismatch is found. [2.2.99]
config/profile_dir - Directory where LVM looks for configuration profiles. [2.2.99]
Example with --atversion (displaying global section):
$ lvmconfig --type list global
global/umask
global/test
global/units
global/si_unit_consistency
global/suffix
global/activation
global/fallback_to_lvm1
global/format
global/format_libraries
global/segment_libraries
global/proc
global/etc
global/locking_type
global/wait_for_locks
global/fallback_to_clustered_locking
global/fallback_to_local_locking
global/locking_dir
global/prioritise_write_locks
global/library_dir
global/locking_library
global/abort_on_internal_errors
global/detect_internal_vg_cache_corruption
global/metadata_read_only
global/mirror_segtype_default
global/raid10_segtype_default
global/sparse_segtype_default
global/lvdisplay_shows_full_device_path
global/use_lvmetad
global/thin_check_executable
global/thin_dump_executable
global/thin_repair_executable
global/thin_check_options
global/thin_repair_options
global/thin_disabled_features
global/cache_check_executable
global/cache_dump_executable
global/cache_repair_executable
global/cache_check_options
global/cache_repair_options
global/system_id_source
global/system_id_file
$ lvmconfig --type list global --atversion 2.2.50
global/umask
global/test
global/units
global/suffix
global/activation
global/fallback_to_lvm1
global/format
global/format_libraries
global/segment_libraries
global/proc
global/locking_type
global/wait_for_locks
global/fallback_to_clustered_locking
global/fallback_to_local_locking
global/locking_dir
global/library_dir
global/locking_library
'lvm dumpconfig' now does a lot more than just dumping configuration
information and is no longer only a support tool. Users now need
to run it to find out about configuration information that has been
removed from the lvm.conf man page so we need to promote this to full
command line status as 'lvmconfig'. Also accept 'lvm config' and mention
it in the usage information of lvmconf (which should also get merged in
eventually).
The specific config settings have been removed
from the lvm.conf(5) man page, and replaced with
a description of how to use lvm dumpconfig to
view the settings.
The sample lvm.conf and lvmlocal.conf files are now generated:
example.conf.base - initial ungenerated part of the file
example.conf.gen - generated portion from dumpconfig
example.conf.in - combination of .base and .gen files
example.conf - result of configure processing .in file
lvmlocal.conf.base - initial ungenerated part of the file
lvmlocal.conf.gen - generated portion from dumpconfig
lvmlocal.conf.in - combination of .base and .gen files
lvmlocal.conf - result of configure processing .in file
Do not edit the .in files, but edit config_settings.h
or the .base files, and then use 'make generate' to create
the new .in files.
- configure
with options
- make
creates tools/lvm
- make generate
uses tools/lvm to create example.conf.in and lvmlocal.conf.in
by combining .base files with dumpconfig output.
- configure
with same options as above
creates example.conf and lvmlocal.conf from .in files
--withfullcomments prints all comment lines for each config option.
--withcomments prints only the first comment line, which should be
a short one-line summary of the option.
This patch adds new options to lvmconf:
--enable-halvm (just like --enable-cluster, but configure LVM
for use in HA LVM - meaning disabling lvmetad and
making sure we have locking_type=1)
--disable-halvm (just like --disable-cluster, but configure LVM
back from HA LVM - meaning enabling lvmetad if
it's enabled by default and making sure we have
default locking type set)
--services (causes clvmd and lvmetad services to be enabled or
disabled appropriately and conforming to the changes
in lvm configuration we've just made with lvmconf)
--mirrorservice (in addition to clvmd and lvmetad services, also
enable or disable cmirrord service appropriately;
this is a separate option because cmirrord is
optional and it doesn't need to be always enabled
when clvmd is enabled)
--startstopservices (in addition to enabling or disabling services,
start and stop these services immediately)
These options are supposed to help users to make their system ready
for cluster with clvmd (active-active) or HA LVM (active-passive) use
while lvmconf script can handle services as well so users don't need
to bother about setting them manually.
Also, before this patch, we hardcoded global/use_lvmetad=0 as default
value in lvmconf script. Howeverm this default may change by just
flipping the value in config_settings.h and we may forget to edit
the lvmconf. It's better to use lvm dumpconfig --type default global/use_lvmetad
to get the actual default value and use this one instead of hardcoded one.
There is no reason to support persistent major/minor numbers
for pool volumes - it's only meant to be supported for filesystems
(since i.e. nfs may need to keep volume on a persistent device node.)
Support for pools is now explicitely disabled and documented.
Previous versions of lvm will not obey the restrictions
imposed by the new system_id, and would allow such a VG
to be written. So, a VG with a new system_id is further
changed to force previous lvm versions to treat it as
read-only. This is done by removing the WRITE flag from
the metadata status line of these VGs, and putting a new
WRITE_LOCKED flag in the flags line of the metadata.
Versions of lvm that recognize WRITE_LOCKED, also obey the
new system_id. For these lvm versions, WRITE_LOCKED is
identical to WRITE, and the rules associated with matching
system_id's are imposed.
A new VG lock_type field is also added that causes the same
WRITE/WRITE_LOCKED transformation when set. A previous
version of lvm will also see a VG with lock_type as read-only.
Versions of lvm that recognize WRITE_LOCKED, must also obey
the lock_type setting. Until the lock_type feature is added,
lvm will fail to read any VG with lock_type set and report an
error about an unsupported lock_type. Once the lock_type
feature is added, lvm will allow VGs with lock_type to be
used according to the rules imposed by the lock_type.
When both system_id and lock_type settings are removed, a VG
is written with the old WRITE status flag, and without the
new WRITE_LOCKED flag. This allows old versions of lvm to
use the VG as before.
In log messages refer to it as system ID (not System ID).
Do not put quotes around the system_id string when printing.
On the command line use systemid.
In code, metadata, and config files use system_id.
In lvmsystemid refer to the concept/entity as system_id.
The LVM_COMMAND_PROFILE env var is new - mention it in dumpconfig's
man page.
Also, dumpconfig always displays the top of the config cascade.
To display all the config found in the cascade merged (just like
it's used during LVM command processing), --mergedconfig option
must be used - this one's already described in that man page,
just make sure it's clear and add reference for this option also
in --profile/--commandprofile/--metadataprofile description.
Once LVM_COMMAND_PROFILE environment variable is specified, the profile
referenced is used just like it was specified using "<lvm command> --commandprofile".
If both --commandprofile cmd line option and LVM_COMMAND_PROFILE env
var is used, the --commandprofile cmd line option gets preference.
If pvscan is run with device path instead of major:minor pair and this
device still exists in the system and the device is not visible anymore
(due to a filter that is applied), notify lvmetad properly about this.
This makes it more consistent with respect to existing pvscan with
major:minor which already notifies lvmetad about device that is gone
due to filters.
However, if the device is not in the system anymore, we're not able
to translate the original device path into major:minor pair which
lvmetad needs for its action (lvmetad_pv_gone fn). So in this case,
we still need to use major:minor pair only, not device path. But at
least make "pvscan --cache DevicePath" as near as possible to "pvscan
--cahce <major>:<minor>" functionality.
Also add a note to pvscan man page about this difference when using
pvscan --cache with DevicePath and major:minor pair.
The {pv,vg,lv}display commands don't use reporting capabilites and
as such they can't use --binary. This got into the man pages by
mistake - the display commands do not recognize --binary option.
- closer to the recommendation of man-pages (7) if possible
- Add crossrefs
- Sort options and crossrefs
- Fix default timeout (60 secs) of -t
- Documents -I[auto]
Signed-off-by: Stéphane Aulery <saulery@free.fr>
