vgreduce(8) — Linux manual page

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

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

NAME         top

       vgreduce — Remove physical volume(s) from a volume group

SYNOPSIS         top

       vgreduce option_args position_args
           [ option_args ]

        -a|--all
        -A|--autobackup y|n
           --commandprofile String
           --config String
        -d|--debug
           --devices PV
           --devicesfile String
           --driverloaded y|n
        -f|--force
        -h|--help
           --journal String
           --lockopt String
           --longhelp
           --mirrorsonly
           --nohints
           --nolocking
           --profile String
        -q|--quiet
           --removemissing
           --reportformat basic|json
        -t|--test
        -v|--verbose
           --version
        -y|--yes

DESCRIPTION         top

       vgreduce removes one or more unused PVs from a VG.

USAGE         top

       Remove a PV from a VG.

       vgreduce VG PV ...
           [ COMMON_OPTIONS ]

       —

       Remove all unused PVs from a VG.

       vgreduce -a|--all VG
           [ COMMON_OPTIONS ]

       —

       Remove all missing PVs from a VG.

       vgreduce --removemissing VG
           [    --mirrorsonly ]
           [ COMMON_OPTIONS ]

       —

       Common options for command:
           [ -A|--autobackup y|n ]
           [ -f|--force ]
           [    --reportformat basic|json ]

       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|--all
              Removes  all  empty  PVs  if none are named on the command
              line.

       -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.

       -f|--force ...
              Override various checks,  confirmations  and  protections.
              Use with extreme caution.

       -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.

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

       --longhelp
              Display long help text.

       --mirrorsonly
              Only remove missing PVs from mirror LVs.

       --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.

       --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'.

       --removemissing
              Removes  all  missing PVs from the VG, if there are no LVs
              allocated on them. This resumes normal operation of the VG
              (new LVs may again be created, changed  and  so  on).   If
              this  is  not  possible  because  LVs  are referencing the
              missing PVs, this option can be combined with  --force  to
              have the command remove any partial LVs. In this case, any
              LVs  and  dependent  snapshots  that  were  partly  on the
              missing disks  are  removed  completely,  including  those
              parts  on  disks  that  are still present.  If LVs spanned
              several disks, including ones  that  are  lost,  salvaging
              some  data  first  may  be  possible  by activating LVs in
              partial mode.

       --reportformat basic|json
              Overrides current  output  format  for  reports  which  is
              defined  globally  by  the report/output_format setting in
              lvm.conf(5).  basic is the original  format  with  columns
              and  rows.   If there is more than one report per command,
              each  report  is  prefixed  with  the  report   name   for
              identification.   json  produces  report  output  in  JSON
              format. See lvmreport(7) for more information.

       -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.

       PV     Physical Volume name, a device path under /dev.  For
              commands managing physical extents, a PV positional arg
              generally accepts a suffix indicating a range (or multiple
              ranges) of physical extents (PEs). When the first PE is
              omitted, it defaults to the start of the device, and when
              the last PE is omitted it defaults to end.  Start and end
              range (inclusive): PV[:PE-PE]...  Start and length range
              (counting from 0): PV[:PE+PE]...

       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.

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 2024-06-14.  (At that
       time, the date of the most recent commit that was found in the
       repository was 2024-06-11.)  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 2.03.25(2)-git (2024-05-16)      VGREDUCE(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)