vgmerge - merge two volume groups

vgmerge [-A|--autobackup{y|n}] [-d|--debug] [-h|--help] [-l|--list] [-t|--test] [-v|--verbose] DestinationVolumeGroupName SourceVolumeGroupName

vgmerge merges two existing volume groups. The inactive SourceVolumeGroupName will be merged into the DestinationVolumeGroupName if physical extent sizes are equal and physical and logical volume summaries of both volume groups fit into DestinationVolumeGroupName's limits.

OPTIONS

"vgmerge -v databases my_vg" merges the inactive volume group named "my_vg" into the active or inactive volume group named "databases" giving verbose runtime information.

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

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).

lvm(8), vgcreate(8), vgextend(8), vgreduce(8), vgsplit(8), pvmove(8)

Heinz Mauelshagen <Linux-LVM@Sistina.com>