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NAME | SYNOPSIS | DESCRIPTION | USAGE | OPTIONS | VARIABLES | ENVIRONMENT VARIABLES | SEE ALSO | COLOPHON |
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VGSPLIT(8) System Manager's Manual VGSPLIT(8)
vgsplit — Move physical volumes into a new or existing volume
group
vgsplit option_args position_args
[ option_args ]
vgsplit moves one or more PVs from a source VG (the first VG arg)
to a destination VG (the second VG arg). The PV(s) to move are
named after the source and destination VGs, or an LV is named, in
which case the PVs underlying the LV are moved.
If the destination VG does not exist, a new VG is created (command
options can be used to specify properties of the new VG, also see
vgcreate(8)).
LVs cannot be split between VGs; each LV must be entirely on the
PVs in the source or destination VG.
vgsplit can only move complete PVs. (See pvmove(8) for moving part
of a PV.)
Split a VG by specified PVs.
vgsplit VG VG PV ...
[ COMMON_OPTIONS ]
Split a VG by PVs in a specified LV.
vgsplit -n|--name LV VG VG
[ COMMON_OPTIONS ]
Common options for command:
[ -A|--autobackup y|n ]
[ -l|--maxlogicalvolumes Number ]
[ -p|--maxphysicalvolumes Number ]
[ -M|--metadatatype lvm2 ]
[ --alloc contiguous|cling|cling_by_tags|normal|anywhere|
inherit ]
[ --poolmetadataspare y|n ]
[ --[vg]metadatacopies all|unmanaged|Number ]
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 ]
--alloc contiguous|cling|cling_by_tags|normal|anywhere|inherit
Determines the allocation policy when a command needs to
allocate Physical Extents (PEs) from the VG. Each VG and LV
has an allocation policy which can be changed with
vgchange/lvchange, or overridden on the command line. nor‐
mal applies common sense rules such as not placing parallel
stripes on the same PV. inherit applies the VG policy to
an LV. contiguous requires new PEs be placed adjacent to
existing PEs. cling places new PEs on the same PV as ex‐
isting PEs in the same stripe of the LV. If there are suf‐
ficient PEs for an allocation, but normal does not use
them, anywhere will use them even if it reduces perfor‐
mance, e.g. by placing two stripes on the same PV. Option‐
al positional PV args on the command line can also be used
to limit which PVs the command will use for allocation.
See lvm(8) for more information about allocation.
-A|--autobackup y|n
Specifies if metadata should be backed up automatically af‐
ter 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.
-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
Devices that the command can use. This option can be re‐
peated 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) de‐
vices/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.
-h|--help
Display help text.
--journal String
Record information in the systemd journal. This informa‐
tion 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. de‐
bug: record full command debugging.
--lockopt String
Used to pass options for special cases to lvmlockd. See
lvmlockd(8) for more information.
--longhelp
Display long help text.
-l|--maxlogicalvolumes Number
Sets the maximum number of LVs allowed in a VG.
-p|--maxphysicalvolumes Number
Sets the maximum number of PVs that can belong to the VG.
The value 0 removes any limitation. For large numbers of
PVs, also see options --pvmetadatacopies, and --vgmetadata‐
copies for improving performance.
-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.
-n|--name String
Move only PVs used by the named LV.
--nohints
Do not use the hints file to locate devices for PVs. A com‐
mand may read more devices to find PVs when hints are not
used. The command will still perform standard hint file in‐
validation where appropriate.
--nolocking
Disable locking.
--poolmetadataspare y|n
Enable or disable the automatic creation and management of
a spare pool metadata LV in the VG. A spare metadata LV is
reserved space that can be used when repairing a pool.
--profile String
An alias for --commandprofile or --metadataprofile, depend‐
ing on the command.
-q|--quiet ...
Suppress output and log messages. Overrides --debug and
--verbose. Repeat once to also suppress any prompts with
answer 'no'.
-t|--test
Run in test mode. Commands will not update metadata. This
is implemented by disabling all metadata writing but never‐
theless 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.
--[vg]metadatacopies all|unmanaged|Number
Number of copies of the VG metadata that are kept. VG
metadata is kept in VG metadata areas on PVs in the VG,
i.e. reserved space at the start and/or end of the PVs.
Keeping a copy of the VG metadata on every PV can reduce
performance in VGs containing a large number of PVs. When
this number is set to a non-zero value, LVM will automati‐
cally choose PVs on which to store metadata, using the
metadataignore flags on PVs to achieve the specified num‐
ber. The number can also be replaced with special string
values: unmanaged causes LVM to not automatically manage
the PV metadataignore flags. all causes LVM to first clear
the metadataignore flags on all PVs, and then to become un‐
managed.
-y|--yes
Do not prompt for confirmation interactively but always as‐
sume the answer yes. Use with extreme caution. (For auto‐
matic no, see -qq.)
VG Volume Group name. See lvm(8) for valid names.
PV Physical Volume name, a device path under /dev. For com‐
mands managing physical extents, a PV positional arg gener‐
ally 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. In‐
put 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.)
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.
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)
This page is part of the lvm2 (Logical Volume Manager 2) project.
Information about the project can be found at
⟨http://www.sourceware.org/lvm2/⟩. If you have a bug report for
this manual page, see ⟨https://github.com/lvmteam/lvm2/issues⟩.
This page was obtained from the project's upstream Git repository
⟨git://sourceware.org/git/lvm2.git⟩ on 2025-02-02. (At that time,
the date of the most recent commit that was found in the
repository was 2025-01-31.) If you discover any rendering
problems in this HTML version of the page, or you believe there is
a better or more up-to-date source for the page, or you have
corrections or improvements to the information in this COLOPHON
(which is not part of the original manual page), send a mail to
[email protected]
Red Hat, Inc. LVM TOOLS 2.03.31(2)-git (2025-01-14) VGSPLIT(8)
Pages that refer to this page: lvmcache(7), lvchange(8), lvconvert(8), lvcreate(8), lvdisplay(8), lvextend(8), lvm(8), lvmconfig(8), lvmdevices(8), lvmdiskscan(8), lvm-fullreport(8), lvm-lvpoll(8), lvreduce(8), lvremove(8), lvrename(8), lvresize(8), lvs(8), lvscan(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), vgconvert(8), vgcreate(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)
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HTML rendering created 2025-02-02 by Michael Kerrisk, author of The Linux Programming Interface. For details of in-depth Linux/UNIX system programming training courses that I teach, look here. Hosting by jambit GmbH. |
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