VGCFGRESTORE(8) System Manager's Manual VGCFGRESTORE(8)
NAME
vgcfgrestore - Restore volume group configuration
SYNOPSIS
vgcfgrestore option_args position_args
[ option_args ]
[ position_args ]
--commandprofile String
--config String
-d|--debug
--driverloaded y|n
-f|--file String
--force
-h|--help
-l|--list
--lockopt String
--longhelp
-M|--metadatatype lvm2
--nolocking
--profile String
-q|--quiet
-t|--test
-v|--verbose
--version
-y|--yes
DESCRIPTION
vgcfgrestore restores the metadata of a VG from a text back up file
produced by vgcfgbackup. This writes VG metadata onto the devices
specifed in back up file.
A back up file can be specified with --file. If no backup file is
specified, the most recent one is used. Use --list for a list of the
available back up and archive files of a VG.
WARNING: When a VG contains thin pools, changes to thin metadata cannot
be reverted, and data loss may occur if thin metadata has changed. The
force option is required to restore in this case.
USAGE
Restore VG metadata from last backup.
vgcfgrestore VG
[ COMMON_OPTIONS ]
-
Restore VG metadata from specified file.
vgcfgrestore -f|--file String VG
[ COMMON_OPTIONS ]
-
List all VG metadata backups.
vgcfgrestore -l|--list VG
[ COMMON_OPTIONS ]
-
List one VG metadata backup file.
vgcfgrestore -l|--list -f|--file String
[ COMMON_OPTIONS ]
[ VG ]
-
Common options for command:
[ -M|--metadatatype lvm2 ]
[ --force ]
Common options for lvm:
[ -d|--debug ]
[ -h|--help ]
[ -q|--quiet ]
[ -t|--test ]
[ -v|--verbose ]
[ -y|--yes ]
[ --commandprofile String ]
[ --config String ]
[ --driverloaded y|n ]
[ --lockopt String ]
[ --longhelp ]
[ --nolocking ]
[ --profile String ]
[ --version ]
OPTIONS
--commandprofile String
The command profile to use for command configuration. See
lvm.conf(5) for more information about profiles.
--config String
Config settings for the command. These override lvm.conf set-
tings. The String arg uses the same format as lvm.conf, or may
use section/field syntax. See lvm.conf(5) for more information
about config.
-d|--debug ...
Set debug level. Repeat from 1 to 6 times to increase the detail
of messages sent to the log file and/or syslog (if configured).
--driverloaded y|n
If set to no, the command will not attempt to use device-mapper.
For testing and debugging.
-f|--file String
Read metadata backup from the named file. Usually this file was
created by vgcfgbackup.
--force ...
Force metadata restore even with thin pool LVs. Use with ex-
treme caution. Most changes to thin metadata cannot be reverted.
You may lose data if you restore metadata that does not match
the thin pool kernel metadata precisely.
-h|--help
Display help text.
-l|--list
List metadata backup and archive files pertaining to the VG.
May be used with --file. Does not restore the VG.
--lockopt String
Used to pass options for special cases to lvmlockd. See lvm-
lockd(8) for more information.
--longhelp
Display long help text.
-M|--metadatatype lvm2
Specifies the type of on-disk metadata to use. lvm2 (or just 2)
is the current, standard format. lvm1 (or just 1) is no longer
used.
--nolocking
Disable locking.
--profile String
An alias for --commandprofile or --metadataprofile, depending on
the command.
-q|--quiet ...
Suppress output and log messages. Overrides --debug and --ver-
bose. Repeat once to also suppress any prompts with answer
'no'.
-t|--test
Run in test mode. Commands will not update metadata. This is
implemented by disabling all metadata writing but nevertheless
returning success to the calling function. This may lead to un-
usual error messages in multi-stage operations if a tool relies
on reading back metadata it believes has changed but hasn't.
-v|--verbose ...
Set verbose level. Repeat from 1 to 4 times to increase the de-
tail of messages sent to stdout and stderr.
--version
Display version information.
-y|--yes
Do not prompt for confirmation interactively but always assume
the answer yes. Use with extreme caution. (For automatic no,
see -qq.)
VARIABLES
VG
Volume Group name. See lvm(8) for valid names.
String
See the option description for information about the string con-
tent.
Size[UNIT]
Size is an input number that accepts an optional unit. Input
units are always treated as base two values, regardless of capi-
talization, e.g. 'k' and 'K' both refer to 1024. The default
input unit is specified by letter, followed by |UNIT. UNIT rep-
resents other possible input units: bBsSkKmMgGtTpPeE. b|B is
bytes, s|S is sectors of 512 bytes, k|K is kilobytes, m|M is
megabytes, g|G is gigabytes, t|T is terabytes, p|P is petabytes,
e|E is exabytes. (This should not be confused with the output
control --units, where capital letters mean multiple of 1000.)
ENVIRONMENT VARIABLES
See lvm(8) for information about environment variables used by lvm.
For example, LVM_VG_NAME can generally be substituted for a required VG
parameter.
NOTES
To replace PVs, vgdisplay --partial --verbose will show the UUIDs and
sizes of any PVs that are no longer present. If a PV in the VG is lost
and you wish to substitute another of the same size, use pvcreate --re-
storefile filename --uuid uuid (plus additional arguments as appropri-
ate) to initialise it with the same UUID as the missing PV. Repeat for
all other missing PVs in the VG. Then use vgcfgrestore --file filename
to restore the VG's metadata.
SEE ALSO
lvm(8)lvm.conf(5)lvmconfig(8)pvchange(8)pvck(8)pvcreate(8)pvdisplay(8)pvmove(8)pvremove(8)pvresize(8)pvs(8)pvscan(8)vgcfgbackup(8)vgcfgrestore(8)vgchange(8)vgck(8)vgcreate(8) vgcon-
vert(8)vgdisplay(8)vgexport(8)vgextend(8)vgimport(8) vgimport-
clone(8)vgmerge(8)vgmknodes(8)vgreduce(8)vgremove(8)vgrename(8)vgs(8)vgscan(8)vgsplit(8)lvcreate(8)lvchange(8)lvconvert(8)lvdisplay(8)lvextend(8) lvre-
duce(8)lvremove(8)lvrename(8)lvresize(8)lvs(8)lvscan(8)lvm-fullreport(8)lvm-lvpoll(8)lvm2-activation-generator(8) blkdeacti-
vate(8)lvmdump(8)dmeventd(8)lvmpolld(8)lvmlockd(8)lvmlockctl(8)cmirrord(8) lvmd-
busd(8)lvmsystemid(7)lvmreport(7)lvmraid(7)lvmthin(7)lvmcache(7)
Red Hat, Inc. LVM TOOLS 2.03.07(2) (2019-11-30) VGCFGRESTORE(8)