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   vgcfgrestore    ( 8 )

восстановить конфигурацию группы томов (Restore volume group configuration)

Имя (Name)

vgcfgrestore — Restore volume group configuration

Синопсис (Synopsis)

vgcfgrestore option_args position_args [ option_args ] [ position_args ]

--commandprofile String --config String -d|--debug --devices PV --devicesfile String --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

Описание (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.

Использование (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 ] [ --devices PV ] [ --devicesfile String ] [ --driverloaded y|n ] [ --lockopt String ] [ --longhelp ] [ --nolocking ] [ --profile String ] [ --version ]

Параметры (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(5) settings.  The String arg uses the same format
              as lvm.conf(5), 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).


       --devices PV
              Devices that the command can use. This option can be
              repeated or accepts a comma separated list of devices.
              This overrides the devices file.


       --devicesfile String
              A file listing devices that LVM should use.  The file must
              exist in /etc/lvm/devices/ and is managed with the
              lvmdevices(8) command.  This overrides the lvm.conf(5)
              devices/devicesfile and devices/use_devicesfile settings.


       --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
              extreme 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
              lvmlockd(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
              --verbose.  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 unusual 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 detail 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.)

Переменные (Variables)

VG Volume Group name. See lvm(8) for valid names.

String See the option description for information about the string content.

Size[UNIT] Size is an input number that accepts an optional unit. Input units are always treated as base two values, regardless of capitalization, e.g. 'k' and 'K' both refer to 1024. The default input unit is specified by letter, followed by |UNIT. UNIT represents other possible input units: b|B is bytes, s|S is sectors of 512 bytes, k|K is KiB, m|M is MiB, g|G is GiB, t|T is TiB, p|P is PiB, e|E is EiB. (This should not be confused with the output control --units, where capital letters mean multiple of 1000.)

Переменные окружения (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.

Примечание (Note)

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 --restorefile filename --uuid uuid (plus additional arguments as appropriate) 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.

Смотри также (See also)

lvm(8), lvm.conf(5), lvmconfig(8), lvmdevices(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), vgconvert(8), vgdisplay(8), vgexport(8), vgextend(8), vgimport(8), vgimportclone(8), vgimportdevices(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), lvreduce(8), lvremove(8), lvrename(8), lvresize(8), lvs(8), lvscan(8),

lvm-fullreport(8), lvm-lvpoll(8), lvm2-activation-generator(8), blkdeactivate(8), lvmdump(8),

dmeventd(8), lvmpolld(8), lvmlockd(8), lvmlockctl(8), cmirrord(8), lvmdbusd(8), fsadm(8),

lvmsystemid(7), lvmreport(7), lvmraid(7), lvmthin(7), lvmcache(7)