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RedHat 9 (Linux i386) - man page for vgmerge (redhat section 8)

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|--ver-
       bose] DestinationVolumeGroupName SourceVolumeGroupName

DESCRIPTION
       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
       -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" giving 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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