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vgcfgrestore(8) [redhat man page]

VGCFGRESTORE(8) 					      System Manager's Manual						   VGCFGRESTORE(8)

NAME
vgcfgrestore - restore volume group descriptor area SYNOPSIS
vgcfgrestore [-b|--backup_number VolumeGroupBackupNumber] [-d|--debug] [-f|--file VGConfPath] [-l[l]|--list [--list]] [-h|--help] [-i|--ignore_size] [-n|--name VolumeGroupName] [-o|--oldpath OldPhysicalVolumePath] [-t|--test] [-v|--verbose] [PhysicalVolumePath] DESCRIPTION
vgcfgrestore allows you to restore the volume group descriptor area from backup files in /etc/lvmconf or from VGConfPath to the given Phys- icalVolumePath. The default backup file is /etc/lvmconf/VolumeGroupName.conf. This command DOES NOT restore data contained in logical volume(s), only the LVM configuration metadata! OPTIONS -b, --backup_numberVolumeGroupBackupNumber Restore from the specified backup number. Use together with option -n which gives the name of the volume group. See examples below. -d, --debug Enables additional debugging output (if compiled with DEBUG). -f, --file VGConfPath Restore from the specified path. Useful for selection of specific backups in the backup history or for copies of VGDA backups. -i, --ignore_size Restore though the size of the physical volume doesn't match the one in the backup. -l, --list Display volume group information contained in the backup file. If given twice, the physical and logical volume information con- tained in the backup file is also shown. -h, --help Print a usage message on standard output and exit successfully. -n, --name VolumeGroupName Do a restore for this volume group name. -o, --oldpath OldPhysicalVolumePath If the path to the physical volume has changed between backup time and restore time, this option enables you to choose the corre- sponding physical volume path in the backup file. -t, --test Do a test run reading the volume group backup WITHOUT trying to restore it -v, --verbose Give verbose runtime information about vgcfgrestore's activities. --version Output the version number and exit successfully. Examples To display information like with "vgdisplay vg00" stored in the backup file /etc/lvmconf/vg00.conf: vgcfgrestore -n vg00 -l To restore the VGDA of vg00 from the alternative backup file /tmp/vg00-old to physical volume /dev/sdn1: vgcfgrestore -f /tmp/vg00-old -n vg00 /dev/sdn1 To restore the VGDA of vg00 from the alternative backup file /etc/lvmconf/vg00.conf.5.old to physical volume /dev/sda5 : vgcfgrestore -n vg00 -b 5 /dev/sda5 DIAGNOSTICS
vgcfgrestore returns an exit code of 0 for success and > 0 for error: 1 no physical volume on command line 2 invalid physical volume name 3 volume group is active 4 error doing restore to physical volume 5 backup is invalid for this volume group 6 volume group is inconsistent 7 physical volume doesn't belong to volume group backup 8 error reading physical volume 9 error getting size of physical volume 10 error writing VGDA to physical volume(s) 11 error removing special files of volume group 12 error setting volume group into lvmtab 13 error doing backup 95 driver/module not in kernel 96 invalid I/O protocol version 97 error locking logical volume manager 98 invalid lvmtab (run vgscan(8)) 99 invalid command line SEE ALSO
lvm(8), vgcfgbackup(8), vgcreate(8) AUTHOR
Heinz Mauelshagen <Linux-LVM@Sistina.com> Heinz Mauelshagen LVM TOOLS VGCFGRESTORE(8)

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VGMERGE(8)						      System Manager's Manual							VGMERGE(8)

NAME
vgmerge - merge two volume groups SYNOPSIS
vgmerge [-A|--autobackup{y|n}] [-d|--debug] [-h|--help] [-l|--list] [-t|--test] [-v|--verbose] DestinationVolumeGroupName SourceVol- umeGroupName DESCRIPTION
vgmerge merges two existing volume groups. The inactive SourceVolumeGroupName will be merged into the DestinationVolumeGroupName if physi- cal extent sizes are equal and physical and logical volume summaries of both volume groups fit into DestinationVolumeGroupName's limits. OPTIONS -A, --autobackup y/n Controls automatic backup of VG metadata after the merge ( see vgcfgbackup(8) ). Default is yes. -d, --debug Enables additional debugging output (if compiled with DEBUG). -h, --help Print a usage message on standard output and exit successfully. -l, --list Display merged DestinationVolumeGroupName like "vgdisplay -v". -t, --test Do a test run WITHOUT making any real changes. -v, --verbose Display verbose runtime information about vgmerge's activities. Examples "vgmerge -v databases my_vg" merges the inactive volume group named "my_vg" into the active or inactive volume group named "databases" giv- ing verbose runtime information. DIAGNOSTICS
vgmerge returns an exit code of 0 for success and > 0 for error: 1 2 volume group names must be entered on command line 2 volume group to merge from must be inactive 3 error reading VGDA of volume group to merge into 4 error reading VGDA of volume group to merge from 5 error setting up VGDA for merge 6 error extending VGDA by physical volume in kernel 7 error writing VGDA to physical volume(s) 8 error creating volume group special files 9 error removing volume group from lvmtab 95 driver/module not in kernel 96 invalid I/O protocol version 97 error locking logical volume manager 98 invalid lvmtab (run vgscan(8)) 99 invalid command line ENVIRONMENT VARIABLES
LVM_AUTOBACKUP If this variable is set to "no" then the automatic backup of VG metadata is turned off. LVM_VG_MAX_BACKUPS This variable determines the backup history depth of kept VGDA copy files in /etc/lvmconf. It can be set to a positive number between 0 and 999. The higher this number is, the more changes you can restore using vgcfgrestore(8). See also1 lvm(8), vgcreate(8), vgextend(8), vgreduce(8), vgsplit(8), pvmove(8) AUTHOR
Heinz Mauelshagen <Linux-LVM@Sistina.com> Heinz Mauelshagen LVM TOOLS VGMERGE(8)
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