vgexport(8) - man - phpman

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



NAME
       vgexport - Unregister volume group(s) from the system

SYNOPSIS
       vgexport option_args position_args
           [ option_args ]

DESCRIPTION
       vgexport  changes  a  VG into the exported state, which ensures that the VG and its disks are
       not being used, and cannot be used until the VG is imported by  vgimport(8).   Putting  a  VG
       into  an  unusable, offline state can be useful when doing things like moving a VG's disks to
       another system.  Exporting a VG provides some protection  from  its  LVs  being  accidentally
       used, or being used by an automated system before it's ready.

       A VG cannot be exported until all of its LVs are inactive.

       LVM commands will ignore an exported VG or report an error if a command tries to use it.

       For  an exported VG, the vgs command will display attribute, and the pvs command will display
       attribute.  Both vgs and pvs will display report field.

       vgexport clears the VG system ID, and vgimport sets the VG system ID to match the  host  run‐
       ning vgimport (if the host has a system ID).

USAGE
       Export specified VGs.

       vgexport VG|Tag|Select ...
           [ -S|--select String ]
           [ COMMON_OPTIONS ]

       Export all VGs.

       vgexport -a|--all
           [ COMMON_OPTIONS ]

       Common options for command:
           [    --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 ]
           [    --nolocking ]
           [    --profile String ]
           [    --version ]

OPTIONS
       -a|--all

       --commandprofile String
              The command profile to use for command configuration.  See lvm.conf(5) for more infor‐
              mation about profiles.

       --config String
              Config settings for the command. These override lvm.conf settings.  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 de‐
              bugging.

       -h|--help
              Display help text.

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

       --longhelp
              Display long help text.

       --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'.

       --reportformat basic|json
              Overrides current output format for reports which is defined globally by the re‐
              port/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 lvmre‐‐
              port(7) for more information.

       -S|--select String
              Select objects for processing and reporting based on specified criteria.  The criteria
              syntax is described by --select help and lvmreport(7).  For reporting commands, one
              row is displayed for each object matching the criteria.  See --options help for se‐
              lectable object fields.  Rows can be displayed with an additional "selected" field (-o
              selected) showing 1 if the row matches the selection and 0 otherwise.  For non-report‐
              ing commands which process LVM entities, the selection is used to choose items to
              process.

       -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 read‐
              ing 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.

       Tag
              Tag name.  See lvm(8) for information about tag names and using tags in place of a VG,
              LV or PV.

       Select
              Select indicates that a required positional parameter can be omitted if  the  --select
              option is used.  No arg appears in this position.

       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: bBsSkKmMgGtTpPeE.  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
       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)  pvs‐‐
       can(8)

       vgcfgbackup(8)  vgcfgrestore(8) vgchange(8) vgck(8) vgcreate(8) vgconvert(8) vgdisplay(8) vg‐‐
       export(8) vgextend(8) vgimport(8) vgimportclone(8) vgmerge(8) vgmknodes(8) vgreduce(8)  vgre‐‐
       move(8) vgrename(8) vgs(8) vgscan(8) vgsplit(8)

       lvcreate(8)  lvchange(8)  lvconvert(8) lvdisplay(8) lvextend(8) lvreduce(8) lvremove(8) lvre‐‐
       name(8) lvresize(8) lvs(8) lvscan(8)

       lvm-fullreport(8) lvm-lvpoll(8) lvm2-activation-generator(8) blkdeactivate(8) lvmdump(8)

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

       lvmsystemid(7) lvmreport(7) lvmraid(7) lvmthin(7) lvmcache(7)



Red Hat, Inc.                     LVM TOOLS 2.03.11(2) (2021-01-08)                      VGEXPORT(8)