vgmerge(8) — Linux manual page

NAME | SYNOPSIS | DESCRIPTION | USAGE | OPTIONS | VARIABLES | ENVIRONMENT VARIABLES | EXAMPLES | SEE ALSO | COLOPHON

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

NAME         top

       vgmerge — Merge volume groups

SYNOPSIS         top

       vgmerge position_args
           [ option_args ]

DESCRIPTION         top

       vgmerge merges two existing VGs. The inactive source VG is merged
       into the destination VG if physical extent sizes are equal and PV
       and LV summaries of both VGs fit into the destination VG's limits.

USAGE         top

       vgmerge VG VG
           [ -A|--autobackup y|n ]
           [ -l|--list ]
           [    --poolmetadataspare y|n ]
           [ COMMON_OPTIONS ]

       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 ]
           [    --journal String ]
           [    --lockopt String ]
           [    --longhelp ]
           [    --nohints ]
           [    --nolocking ]
           [    --profile String ]
           [    --version ]

OPTIONS         top


       -A|--autobackup y|n
              Specifies  if  metadata  should  be backed up automatically
              after a change.  Enabling this  is  strongly  advised!  See
              vgcfgbackup(8) for more information.

       --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.

       -h|--help
              Display help text.

       --journal String
              Record   information   in   the   systemd   journal.   This
              information is in addition to information  enabled  by  the
              lvm.conf  log/journal setting.  command: record information
              about the command.   output:  record  the  default  command
              output.  debug: record full command debugging.

       -l|--list
              Display merged destination VG like vgdisplay -v.

       --lockopt String
              Used  to  pass  options for special cases to lvmlockd.  See
              lvmlockd(8) for more information.

       --longhelp
              Display long help text.

       --nohints
              Do not use the hints file to  locate  devices  for  PVs.  A
              command  may  read  more devices to find PVs when hints are
              not used. The command will still perform standard hint file
              invalidation where appropriate.

       --nolocking
              Disable locking.

       --poolmetadataspare y|n
              Enable or disable the automatic creation and management  of
              a  spare pool metadata LV in the VG. A spare metadata LV is
              reserved space that can be used when repairing a pool.

       --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.)

VARIABLES         top

       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.)

ENVIRONMENT VARIABLES         top

       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.

EXAMPLES         top

       Merge an inactive VG named "vg00" into the active or inactive VG
       named "databases", giving verbose runtime information.
       vgmerge -v databases vg00

SEE ALSO         top

       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), blkdeactivate(8), lvmdump(8),

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

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

COLOPHON         top

       This page is part of the lvm2 (Logical Volume Manager 2) project.
       Information about the project can be found at 
       ⟨http://www.sourceware.org/lvm2/⟩.  If you have a bug report for
       this manual page, see ⟨https://github.com/lvmteam/lvm2/issues⟩.
       This page was obtained from the project's upstream Git repository
       ⟨git://sourceware.org/git/lvm2.git⟩ on 2025-02-02.  (At that time,
       the date of the most recent commit that was found in the
       repository was 2025-01-31.)  If you discover any rendering
       problems in this HTML version of the page, or you believe there is
       a better or more up-to-date source for the page, or you have
       corrections or improvements to the information in this COLOPHON
       (which is not part of the original manual page), send a mail to
       [email protected]

Red Hat, Inc.     LVM TOOLS 2.03.31(2)-git (2025-01-14)        VGMERGE(8)

Pages that refer to this page: lvmcache(7)lvchange(8)lvconvert(8)lvcreate(8)lvdisplay(8)lvextend(8)lvm(8)lvmconfig(8)lvmdevices(8)lvmdiskscan(8)lvm-fullreport(8)lvm-lvpoll(8)lvreduce(8)lvremove(8)lvrename(8)lvresize(8)lvs(8)lvscan(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)vgconvert(8)vgcreate(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)