Ubuntu Manpage: vgextend - Add physical volumes to a volume group

Provided by: lvm2_2.02.176-4.1ubuntu3.18.04.3_amd64

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|lvm1 ]
           [    --labelsector Number ]
           [    --metadatasize Size[m|UNIT] ]
           [    --pvmetadatacopies 0|1|2 ]
           [    --metadataignore y|n ]
           [    --dataalignment Size[k|UNIT] ]
           [    --dataalignmentoffset Size[k|UNIT] ]
           [    --reportformat basic|json ]
           [    --restoremissing ]
           [ COMMON_OPTIONS ]

       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|--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 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.

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

--dataalignmentoffset Size[k|UNIT]
Shift the start of the 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).

--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.

--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.

--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|lvm1
Specifies the type of on-disk metadata to use. lvm2 (or just 2) is the current, standard format.
lvm1 (or just 1) is a historical format that can be used for accessing old data.

--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 (starting in the 5th sector). 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
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.

--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:
              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.

EXAMPLES

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