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

NAME
       vgreduce - Remove physical volume(s) from a volume group
SYNOPSIS
       vgreduce option_args position_args
           [ option_args ]
        -a|--all
        -A|--autobackup y|n
           --commandprofile String
           --config String
        -d|--debug
           --driverloaded y|n
        -f|--force
        -h|--help
           --lockopt String
           --longhelp
           --mirrorsonly
           --profile String
        -q|--quiet
           --removemissing
           --reportformat basic|json
        -t|--test
        -v|--verbose
           --version
        -y|--yes
DESCRIPTION
       vgreduce removes one or more unused PVs from a VG.
USAGE
       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 ]
           [    --driverloaded y|n ]
           [    --lockopt String ]
           [    --longhelp ]
           [    --profile String ]
           [    --version ]
OPTIONS
       -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 set-
              tings.  The String arg uses the same format as lvm.conf, 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).
       --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.
       --lockopt String
              Used to pass options for special cases to lvmlockd.  See lvm-
              lockd(8) for more information.
       --longhelp
              Display long help text.
       --mirrorsonly
              Only remove missing PVs from mirror LVs.
       --profile String
              An alias for --commandprofile or --metadataprofile, depending on
              the command.
       -q|--quiet ...
              Suppress output and log messages. Overrides --debug and --ver-
              bose.  Repeat once to also suppress any prompts with answer
              'no'.
       --removemissing
              Removes all missing PVs from the VG, if there are no LVs allo-
              cated on them. This resumes normal operation of the VG (new LVs
              may again be created, changed and so on).  If this is not possi-
              ble 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.  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
       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 con-
              tent.
       Size[UNIT]
              Size  is  an  input number that accepts an optional unit.  Input
              units are always treated as base two values, regardless of capi-
              talization,  e.g.  'k'  and 'K' both refer to 1024.  The default
              input unit is specified by letter, followed by |UNIT.  UNIT rep-
              resents  other  possible  input units: bBsSkKmMgGtTpPeE.  b|B is
              bytes, s|S is sectors of 512 bytes, k|K  is  kilobytes,  m|M  is
              megabytes, g|G is gigabytes, t|T is terabytes, p|P is petabytes,
              e|E is exabytes.  (This should not be confused with  the  output
              control --units, where capital letters mean multiple of 1000.)
ENVIRONMENT VARIABLES
       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
       lvm(8) lvm.conf(5) lvmconfig(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)  vgcon-
       vert(8)  vgdisplay(8)  vgexport(8)  vgextend(8)  vgimport(8)  vgimport-
       clone(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) lvre-
       duce(8) lvremove(8) lvrename(8) lvresize(8) lvs(8) lvscan(8)
       lvm-fullreport(8) lvm-lvpoll(8) lvm2-activation-generator(8) blkdeacti-
       vate(8) lvmdump(8)
       dmeventd(8)  lvmetad(8)  lvmpolld(8) lvmlockd(8) lvmlockctl(8) clvmd(8)
       cmirrord(8) lvmdbusd(8)
       lvmsystemid(7) lvmreport(7) lvmraid(7) lvmthin(7) lvmcache(7)

Red Hat, Inc.      LVM TOOLS 2.02.187(2)-RHEL7 (2020-03-24)        VGREDUCE(8)