vgreduce man page on Kali

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VGREDUCE(8)							   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
	   --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 ]
	   [	--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.

       --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 2.02.176(2) (2017-11-03)	   VGREDUCE(8)
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