plucky (8) vgextend.8.gz

Provided by: lvm2_2.03.27-1ubuntu1_amd64 bug

NAME

       vgextend — Add physical volumes to a volume group

SYNOPSIS

       vgextend position_args
           [ option_args ]

DESCRIPTION

       vgextend adds one or more PVs to a VG. This increases the space available for LVs in the VG.

       Also,  PVs that have gone missing and then returned, e.g. due to a transient device failure, can be added
       back to the VG without re-initializing them (see --restoremissing).

       If the specified PVs have not yet been initialized with pvcreate, vgextend will initialize them. In  this
       case   pvcreate   options   can   be   used,   e.g.    --labelsector,  --metadatasize,  --metadataignore,
       --pvmetadatacopies, --dataalignment, --dataalignmentoffset.

USAGE

       vgextend VG PV ...
           [ -A|--autobackup y|n ]
           [ -f|--force ]
           [ -Z|--zero y|n ]
           [ -M|--metadatatype lvm2 ]
           [    --labelsector Number ]
           [    --metadatasize Size[m|UNIT] ]
           [    --pvmetadatacopies 0|1|2 ]
           [    --metadataignore y|n ]
           [    --dataalignment Size[k|UNIT] ]
           [    --dataalignmentoffset Size[k|UNIT] ]
           [    --reportformat basic|json|json_std ]
           [    --restoremissing ]
           [ 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

       -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.

       --dataalignment Size[k|UNIT]
              Align the start of a PV data area with a multiple of this number.  To  see  the  location  of  the
              first Physical Extent (PE) of an existing PV, use pvs -o +pe_start. In addition, it may be shifted
              by an alignment offset, see --dataalignmentoffset.  Also  specify  an  appropriate  PE  size  when
              creating a VG.

       --dataalignmentoffset Size[k|UNIT]
              Shift the start of the PV data area by this additional offset.

       -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
              Restricts the devices that are visible and accessible to the command.   Devices  not  listed  will
              appear  to  be missing. 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.

       --labelsector Number
              By default the PV is labelled with an LVM2 identifier in its second sector (sector 1).  This  lets
              you  use  a  different  sector  near  the  start  of  the  disk  (between  0 and 3 inclusive - see
              LABEL_SCAN_SECTORS in the source). Use with care.

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

       --longhelp
              Display long help text.

       --metadataignore y|n
              Specifies the metadataignore property of a PV.  If yes, metadata areas on the PV are ignored,  and
              lvm  will  not  store metadata in the metadata areas of the PV.  If no, lvm will store metadata on
              the PV.

       --metadatasize Size[m|UNIT]
              The approximate amount of space used for each VG metadata area.  The size may be rounded.

       -M|--metadatatype lvm2
              Specifies the type of on-disk metadata to use.  lvm2 (or just 2) is the current, standard  format.
              lvm1 (or just 1) is no longer used.

       --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. Use with caution, concurrent commands may produce incorrect results.

       --profile String
              An alias for --commandprofile or --metadataprofile, depending on the command.

       --pvmetadatacopies 0|1|2
              The  number  of  metadata areas to set aside on a PV for storing VG metadata.  When 2, one copy of
              the VG metadata is stored at the front of the PV and a second copy is stored at the end.  When  1,
              one  copy  of  the  VG  metadata  is  stored  at the front of the PV.  When 0, no copies of the VG
              metadata are stored on the given PV.  This may be useful in VGs containing many PVs  (this  places
              limitations on the ability to use vgsplit later.)

       -q|--quiet ...
              Suppress  output  and log messages. Overrides --debug and --verbose.  Repeat once to also suppress
              any prompts with answer 'no'.

       --reportformat basic|json|json_std
              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. json_std produces report output in JSON format which is
              more compliant with JSON standard.  See lvmreport(7) for more information.

       --restoremissing
              Add a PV back into a VG after the PV was missing and  then  returned,  e.g.  due  to  a  transient
              failure. The PV is not reinitialized.

       -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.)

       -Z|--zero y|n
              Controls if the first 4 sectors (2048 bytes) of the device are wiped.   The  default  is  to  wipe
              these sectors unless either or both of --restorefile or --uuid are specified.

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 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

       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

       Add two PVs to a VG.
       vgextend vg00 /dev/sda4 /dev/sdn1

SEE ALSO

       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)