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NAME | SYNOPSIS | DESCRIPTION | USAGE | OPTIONS | VARIABLES | ENVIRONMENT VARIABLES | ADVANCED USAGE | EXAMPLES | SEE ALSO | COLOPHON |
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LVCREATE(8) System Manager's Manual LVCREATE(8)
lvcreate — Create a logical volume
lvcreate option_args position_args
[ option_args ]
[ position_args ]
-a|--activate y|n|ay
--addtag Tag
--alloc contiguous|cling|cling_by_tags|normal|anywhere|
inherit
-A|--autobackup y|n
-H|--cache
--cachedevice PV
--cachemetadataformat auto|1|2
--cachemode writethrough|writeback|passthrough
--cachepolicy String
--cachepool LV
--cachesettings String
--cachesize Size[m|UNIT]
--cachevol LV
-c|--chunksize Size[k|UNIT]
--commandprofile String
--compression y|n
--config String
-C|--contiguous y|n
-d|--debug
--deduplication y|n
--devices PV
--devicesfile String
--discards passdown|nopassdown|ignore
--driverloaded y|n
--errorwhenfull y|n
-l|--extents Number[PERCENT]
-h|--help
-K|--ignoreactivationskip
--ignoremonitoring
--journal String
--lockopt String
--longhelp
-j|--major Number
--[raid]maxrecoveryrate Size[k|UNIT]
--metadataprofile String
--minor Number
--[raid]minrecoveryrate Size[k|UNIT]
--mirrorlog core|disk
-m|--mirrors Number
--monitor y|n
-n|--name String
--nohints
--nolocking
--nosync
--noudevsync
-p|--permission rw|r
-M|--persistent y|n
--poolmetadatasize Size[m|UNIT]
--poolmetadataspare y|n
--profile String
-q|--quiet
--raidintegrity y|n
--raidintegrityblocksize Number
--raidintegritymode String
-r|--readahead auto|none|Number
-R|--regionsize Size[m|UNIT]
--reportformat basic|json
-k|--setactivationskip y|n
--setautoactivation y|n
-L|--size Size[m|UNIT]
-s|--snapshot
-i|--stripes Number
-I|--stripesize Size[k|UNIT]
-t|--test
-T|--thin
--thinpool LV
--type linear|striped|snapshot|raid|mirror|thin|thin-pool|
vdo|vdo-pool|cache|cache-pool|writecache
--vdo
--vdopool LV
-v|--verbose
--version
-V|--virtualsize Size[m|UNIT]
-W|--wipesignatures y|n
-y|--yes
-Z|--zero y|n
lvcreate creates a new LV in a VG. For standard LVs, this re‐
quires allocating logical extents from the VG's free physical ex‐
tents. If there is not enough free space, the VG can be extended
with other PVs (vgextend(8)), or existing LVs can be reduced or
removed (lvremove(8), lvreduce(8)).
To control which PVs a new LV will use, specify one or more PVs
as position args at the end of the command line. lvcreate will
allocate physical extents only from the specified PVs.
lvcreate can also create snapshots of existing LVs, e.g. for
backup purposes. The data in a new snapshot LV represents the
content of the original LV from the time the snapshot was creat‐
ed.
RAID LVs can be created by specifying an LV type when creating
the LV (see lvmraid(7)). Different RAID levels require different
numbers of unique PVs be available in the VG for allocation.
Thin pools (for thin provisioning) and cache pools (for caching)
are represented by special LVs with types thin-pool and
cache-pool (see lvmthin(7) and lvmcache(7)). The pool LVs are not
usable as standard block devices, but the LV names act as refer‐
ences to the pools.
Thin LVs are thinly provisioned from a thin pool, and are created
with a virtual size rather than a physical size. A cache LV is
the combination of a standard LV with a cache pool, used to cache
active portions of the LV to improve performance.
VDO LVs are also provisioned volumes from a VDO pool, and are
created with a virtual size rather than a physical size (see
lvmvdo(7)).
Usage notes
In the usage section below, --size Size can be replaced with
--extents Number. See descriptions in the options section.
In the usage section below, --name is omitted from the required
options, even though it is typically used. When the name is not
specified, a new LV name is generated with the "lvol" prefix and
a unique numeric suffix.
In the usage section below, when creating a pool and the name is
omitted the new LV pool name is generated with the "vpool" for
vdo-pools for prefix and a unique numeric suffix.
Pool name can be specified together with VG name i.e.: vg00/my‐
thinpool.
Create a linear LV.
lvcreate -L|--size Size[m|UNIT] VG
[ --type linear ] (implied)
[ -l|--extents Number[PERCENT] ]
[ COMMON_OPTIONS ]
[ PV ... ]
—
Create a striped LV.
lvcreate -i|--stripes Number -L|--size Size[m|UNIT] VG
[ --type striped ] (implied)
[ -l|--extents Number[PERCENT] ]
[ -I|--stripesize Size[k|UNIT] ]
[ COMMON_OPTIONS ]
[ PV ... ]
—
Create a raid1 or mirror LV.
lvcreate -m|--mirrors Number -L|--size Size[m|UNIT] VG
[ --type raid1|mirror ] (implied)
[ -l|--extents Number[PERCENT] ]
[ -I|--stripesize Size[k|UNIT] ]
[ -R|--regionsize Size[m|UNIT] ]
[ --mirrorlog core|disk ]
[ --[raid]minrecoveryrate Size[k|UNIT] ]
[ --[raid]maxrecoveryrate Size[k|UNIT] ]
[ COMMON_OPTIONS ]
[ PV ... ]
—
Create a raid LV (a specific raid level must be used, e.g.
raid1).
lvcreate --type raid -L|--size Size[m|UNIT] VG
[ -l|--extents Number[PERCENT] ]
[ -i|--stripes Number ]
[ -I|--stripesize Size[k|UNIT] ]
[ -m|--mirrors Number ]
[ -R|--regionsize Size[m|UNIT] ]
[ --[raid]minrecoveryrate Size[k|UNIT] ]
[ --[raid]maxrecoveryrate Size[k|UNIT] ]
[ --raidintegrity y|n ]
[ --raidintegritymode String ]
[ --raidintegrityblocksize Number ]
[ COMMON_OPTIONS ]
[ PV ... ]
—
Create a raid10 LV.
lvcreate -m|--mirrors Number -i|--stripes Number
-L|--size Size[m|UNIT] VG
[ --type raid10 ] (implied)
[ -l|--extents Number[PERCENT] ]
[ -I|--stripesize Size[k|UNIT] ]
[ -R|--regionsize Size[m|UNIT] ]
[ --[raid]minrecoveryrate Size[k|UNIT] ]
[ --[raid]maxrecoveryrate Size[k|UNIT] ]
[ COMMON_OPTIONS ]
[ PV ... ]
—
Create a COW snapshot LV of an origin LV.
lvcreate -s|--snapshot -L|--size Size[m|UNIT] LV
[ --type snapshot ] (implied)
[ -l|--extents Number[PERCENT] ]
[ -i|--stripes Number ]
[ -I|--stripesize Size[k|UNIT] ]
[ -c|--chunksize Size[k|UNIT] ]
[ COMMON_OPTIONS ]
[ PV ... ]
—
Create a thin pool.
lvcreate --type thin-pool -L|--size Size[m|UNIT] VG
[ -l|--extents Number[PERCENT] ]
[ -i|--stripes Number ]
[ -I|--stripesize Size[k|UNIT] ]
[ -T|--thin ]
[ -c|--chunksize Size[k|UNIT] ]
[ --thinpool LV_new ]
[ --discards passdown|nopassdown|ignore ]
[ --errorwhenfull y|n ]
[ --poolmetadatasize Size[m|UNIT] ]
[ --poolmetadataspare y|n ]
[ COMMON_OPTIONS ]
[ PV ... ]
—
Create a cache pool.
lvcreate --type cache-pool -L|--size Size[m|UNIT] VG
[ -l|--extents Number[PERCENT] ]
[ -i|--stripes Number ]
[ -I|--stripesize Size[k|UNIT] ]
[ -H|--cache ]
[ -c|--chunksize Size[k|UNIT] ]
[ --cachemode writethrough|writeback|passthrough ]
[ --cachepolicy String ]
[ --cachesettings String ]
[ --cachemetadataformat auto|1|2 ]
[ --poolmetadatasize Size[m|UNIT] ]
[ --poolmetadataspare y|n ]
[ COMMON_OPTIONS ]
[ PV ... ]
—
Create a thin LV in a thin pool.
lvcreate -V|--virtualsize Size[m|UNIT] --thinpool LV VG
[ --type thin ] (implied)
[ -T|--thin ]
[ COMMON_OPTIONS ]
—
Create a thin LV that is a snapshot of an existing thin LV.
lvcreate -s|--snapshot LV1
[ --type thin ] (implied)
[ COMMON_OPTIONS ]
LV1 types: thin
—
Create a thin LV that is a snapshot of an external origin LV.
lvcreate --type thin --thinpool LV LV
[ -T|--thin ]
[ COMMON_OPTIONS ]
—
Create a LV that returns VDO when used.
lvcreate --type vdo -L|--size Size[m|UNIT] VG
[ -l|--extents Number[PERCENT] ]
[ -i|--stripes Number ]
[ -I|--stripesize Size[k|UNIT] ]
[ -V|--virtualsize Size[m|UNIT] ]
[ --vdo ]
[ --vdopool LV_new ]
[ --compression y|n ]
[ --deduplication y|n ]
[ COMMON_OPTIONS ]
[ PV ... ]
—
Create a new LV, then attach the specified cachepool
which converts the new LV to type cache.
lvcreate --type cache -L|--size Size[m|UNIT]
--cachepool LV VG
[ -l|--extents Number[PERCENT] ]
[ -i|--stripes Number ]
[ -I|--stripesize Size[k|UNIT] ]
[ -H|--cache ]
[ -c|--chunksize Size[k|UNIT] ]
[ --cachemode writethrough|writeback|passthrough ]
[ --cachepolicy String ]
[ --cachesettings String ]
[ --cachemetadataformat auto|1|2 ]
[ --poolmetadatasize Size[m|UNIT] ]
[ --poolmetadataspare y|n ]
[ COMMON_OPTIONS ]
[ PV ... ]
—
Create a new LV, then attach the specified cachevol
which converts the new LV to type cache.
lvcreate --type cache -L|--size Size[m|UNIT]
--cachevol LV VG
[ -l|--extents Number[PERCENT] ]
[ -i|--stripes Number ]
[ -I|--stripesize Size[k|UNIT] ]
[ -c|--chunksize Size[k|UNIT] ]
[ --cachemode writethrough|writeback|passthrough ]
[ --cachepolicy String ]
[ --cachesettings String ]
[ --cachemetadataformat auto|1|2 ]
[ COMMON_OPTIONS ]
[ PV ... ]
—
Create a new LV, then attach a cachevol created from
the specified cache device, which converts the
new LV to type cache.
lvcreate --type cache -L|--size Size[m|UNIT]
--cachedevice PV VG
[ -l|--extents Number[PERCENT] ]
[ -i|--stripes Number ]
[ -I|--stripesize Size[k|UNIT] ]
[ -c|--chunksize Size[k|UNIT] ]
[ --cachesize Size[m|UNIT] ]
[ --cachemode writethrough|writeback|passthrough ]
[ --cachepolicy String ]
[ --cachesettings String ]
[ --cachemetadataformat auto|1|2 ]
[ COMMON_OPTIONS ]
[ PV ... ]
—
Create a new LV, then attach the specified cachevol
which converts the new LV to type writecache.
lvcreate --type writecache -L|--size Size[m|UNIT]
--cachevol LV VG
[ -l|--extents Number[PERCENT] ]
[ -i|--stripes Number ]
[ -I|--stripesize Size[k|UNIT] ]
[ --cachesettings String ]
[ COMMON_OPTIONS ]
[ PV ... ]
—
Create a new LV, then attach a cachevol created from
the specified cache device, which converts the
new LV to type writecache.
lvcreate --type writecache -L|--size Size[m|UNIT]
--cachedevice PV VG
[ -l|--extents Number[PERCENT] ]
[ -i|--stripes Number ]
[ -I|--stripesize Size[k|UNIT] ]
[ --cachesize Size[m|UNIT] ]
[ --cachesettings String ]
[ COMMON_OPTIONS ]
[ PV ... ]
—
Common options for command:
[ -a|--activate y|n|ay ]
[ -A|--autobackup y|n ]
[ -C|--contiguous y|n ]
[ -K|--ignoreactivationskip ]
[ -j|--major Number ]
[ -n|--name String ]
[ -p|--permission rw|r ]
[ -M|--persistent y|n ]
[ -r|--readahead auto|none|Number ]
[ -k|--setactivationskip y|n ]
[ -W|--wipesignatures y|n ]
[ -Z|--zero y|n ]
[ --addtag Tag ]
[ --alloc contiguous|cling|cling_by_tags|normal|anywhere|
inherit ]
[ --ignoremonitoring ]
[ --metadataprofile String ]
[ --minor Number ]
[ --monitor y|n ]
[ --nosync ]
[ --noudevsync ]
[ --reportformat basic|json ]
[ --setautoactivation y|n ]
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 ]
-a|--activate y|n|ay
Controls the active state of the new LV. y makes the LV
active, or available. New LVs are made active by default.
n makes the LV inactive, or unavailable, only when possi‐
ble. In some cases, creating an LV requires it to be ac‐
tive. For example, COW snapshots of an active origin LV
can only be created in the active state (this does not ap‐
ply to thin snapshots). The --zero option normally re‐
quires the LV to be active. If autoactivation ay is used,
the LV is only activated if it matches an item in
lvm.conf(5) activation/auto_activation_volume_list. ay
implies --zero n and --wipesignatures n. See lvmlockd(8)
for more information about activation options for shared
VGs.
--addtag Tag
Adds a tag to a PV, VG or LV. This option can be repeated
to add multiple tags at once. See lvm(8) for information
about tags.
--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.
normal applies common sense rules such as not placing par‐
allel stripes on the same PV. inherit applies the VG pol‐
icy to an LV. contiguous requires new PEs be placed adja‐
cent to existing PEs. cling places new PEs on the same PV
as existing PEs in the same stripe of the LV. If there
are sufficient PEs for an allocation, but normal does not
use them, anywhere will use them even if it reduces per‐
formance, e.g. by placing two stripes on the same PV. Op‐
tional positional PV args on the command line can also be
used to limit which PVs the command will use for alloca‐
tion. See lvm(8) for more information about allocation.
-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.
-H|--cache
Specifies the command is handling a cache LV or cache
pool. See --type cache and --type cache-pool. See
lvmcache(7) for more information about LVM caching.
--cachedevice PV
The name of a device to use for a cache.
--cachemetadataformat auto|1|2
Specifies the cache metadata format used by cache target.
--cachemode writethrough|writeback|passthrough
Specifies when writes to a cache LV should be considered
complete. writeback considers a write complete as soon as
it is stored in the cache pool. writethough considers a
write complete only when it has been stored in both the
cache pool and on the origin LV. While writethrough may
be slower for writes, it is more resilient if something
should happen to a device associated with the cache pool
LV. With passthrough, all reads are served from the origin
LV (all reads miss the cache) and all writes are forwarded
to the origin LV; additionally, write hits cause cache
block invalidates. See lvmcache(7) for more information.
--cachepolicy String
Specifies the cache policy for a cache LV. See
lvmcache(7) for more information.
--cachepool LV
The name of a cache pool.
--cachesettings String
Specifies tunable values for a cache LV in "Key = Value"
form. Repeat this option to specify multiple values.
(The default values should usually be adequate.) The spe‐
cial string value default switches settings back to their
default kernel values and removes them from the list of
settings stored in LVM metadata. See lvmcache(7) for more
information.
--cachesize Size[m|UNIT]
The size of cache to use.
--cachevol LV
The name of a cache volume.
-c|--chunksize Size[k|UNIT]
The size of chunks in a snapshot, cache pool or thin pool.
For snapshots, the value must be a power of 2 between 4KiB
and 512KiB and the default value is 4. For a cache pool
the value must be between 32KiB and 1GiB and the default
value is 64. For a thin pool the value must be between
64KiB and 1GiB and the default value starts with 64 and
scales up to fit the pool metadata size within 128MiB, if
the pool metadata size is not specified. The value must
be a multiple of 64KiB. See lvmthin(7) and lvmcache(7)
for more information.
--commandprofile String
The command profile to use for command configuration. See
lvm.conf(5) for more information about profiles.
--compression y|n
Controls whether compression is enabled or disable for VDO
volume. See lvmvdo(7) for more information about VDO us‐
age.
--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.
-C|--contiguous y|n
Sets or resets the contiguous allocation policy for LVs.
Default is no contiguous allocation based on a next free
principle. It is only possible to change a non-contiguous
allocation policy to contiguous if all of the allocated
physical extents in the LV are already contiguous.
-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).
--deduplication y|n
Controls whether deduplication is enabled or disable for
VDO volume. See lvmvdo(7) for more information about VDO
usage.
--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.
--discards passdown|nopassdown|ignore
Specifies how the device-mapper thin pool layer in the
kernel should handle discards. ignore causes the thin
pool to ignore discards. nopassdown causes the thin pool
to process discards itself to allow reuse of unneeded ex‐
tents in the thin pool. passdown causes the thin pool to
process discards itself (like nopassdown) and pass the
discards to the underlying device. See lvmthin(7) for
more information.
--driverloaded y|n
If set to no, the command will not attempt to use device-
mapper. For testing and debugging.
--errorwhenfull y|n
Specifies thin pool behavior when data space is exhausted.
When yes, device-mapper will immediately return an error
when a thin pool is full and an I/O request requires
space. When no, device-mapper will queue these I/O re‐
quests for a period of time to allow the thin pool to be
extended. Errors are returned if no space is available
after the timeout. (Also see dm-thin-pool kernel module
option no_space_timeout.) See lvmthin(7) for more infor‐
mation.
-l|--extents Number[PERCENT]
Specifies the size of the new LV in logical extents. The
--size and --extents options are alternate methods of
specifying size. The total number of physical extents
used will be greater when redundant data is needed for
RAID levels. An alternate syntax allows the size to be
determined indirectly as a percentage of the size of a re‐
lated VG, LV, or set of PVs. The suffix %VG denotes the
total size of the VG, the suffix %FREE the remaining free
space in the VG, and the suffix %PVS the free space in the
specified PVs. For a snapshot, the size can be expressed
as a percentage of the total size of the origin LV with
the suffix %ORIGIN (100%ORIGIN provides space for the
whole origin). When expressed as a percentage, the size
defines an upper limit for the number of logical extents
in the new LV. The precise number of logical extents in
the new LV is not determined until the command has com‐
pleted.
-h|--help
Display help text.
-K|--ignoreactivationskip
Ignore the "activation skip" LV flag during activation to
allow LVs with the flag set to be activated.
--ignoremonitoring
Do not interact with dmeventd unless --monitor is speci‐
fied. Do not use this if dmeventd is already monitoring a
device.
--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.
debug: 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.
-j|--major Number
Sets the major number of an LV block device.
--[raid]maxrecoveryrate Size[k|UNIT]
Sets the maximum recovery rate for a RAID LV. The rate
value is an amount of data per second for each device in
the array. Setting the rate to 0 means it will be un‐
bounded. See lvmraid(7) for more information.
--metadataprofile String
The metadata profile to use for command configuration.
See lvm.conf(5) for more information about profiles.
--minor Number
Sets the minor number of an LV block device.
--[raid]minrecoveryrate Size[k|UNIT]
Sets the minimum recovery rate for a RAID LV. The rate
value is an amount of data per second for each device in
the array. Setting the rate to 0 means it will be un‐
bounded. See lvmraid(7) for more information.
--mirrorlog core|disk
Specifies the type of mirror log for LVs with the "mirror"
type (does not apply to the "raid1" type.) disk is a per‐
sistent log and requires a small amount of storage space,
usually on a separate device from the data being mirrored.
core is not persistent; the log is kept only in memory.
In this case, the mirror must be synchronized (by copying
LV data from the first device to others) each time the LV
is activated, e.g. after reboot. mirrored is a persistent
log that is itself mirrored, but should be avoided. In‐
stead, use the raid1 type for log redundancy.
-m|--mirrors Number
Specifies the number of mirror images in addition to the
original LV image, e.g. --mirrors 1 means there are two
images of the data, the original and one mirror image.
Optional positional PV args on the command line can speci‐
fy the devices the images should be placed on. There are
two mirroring implementations: "raid1" and "mirror".
These are the names of the corresponding LV types, or
"segment types". Use the --type option to specify which
to use (raid1 is default, and mirror is legacy) Use
lvm.conf(5) global/mirror_segtype_default and glob‐
al/raid10_segtype_default to configure the default types.
See the --nosync option for avoiding initial image syn‐
chronization. See lvmraid(7) for more information.
--monitor y|n
Start (yes) or stop (no) monitoring an LV with dmeventd.
dmeventd monitors kernel events for an LV, and performs
automated maintenance for the LV in reponse to specific
events. See dmeventd(8) for more information.
-n|--name String
Specifies the name of a new LV. When unspecified, a de‐
fault name of "lvol#" is generated, where # is a number
generated by LVM.
--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.
--nosync
Causes the creation of mirror, raid1, raid4, raid5 and
raid10 to skip the initial synchronization. In case of
mirror, raid1 and raid10, any data written afterwards will
be mirrored, but the original contents will not be copied.
In case of raid4 and raid5, no parity blocks will be writ‐
ten, though any data written afterwards will cause parity
blocks to be stored. This is useful for skipping a poten‐
tially long and resource intensive initial sync of an emp‐
ty mirror/raid1/raid4/raid5 and raid10 LV. This option is
not valid for raid6, because raid6 relies on proper parity
(P and Q Syndromes) being created during initial synchro‐
nization in order to reconstruct proper user date in case
of device failures. raid0 and raid0_meta do not provide
any data copies or parity support and thus do not support
initial synchronization.
--noudevsync
Disables udev synchronisation. The process will not wait
for notification from udev. It will continue irrespective
of any possible udev processing in the background. Only
use this if udev is not running or has rules that ignore
the devices LVM creates.
-p|--permission rw|r
Set access permission to read only r or read and write rw.
-M|--persistent y|n
When yes, makes the specified minor number persistent.
--poolmetadatasize Size[m|UNIT]
Specifies the size of the new pool metadata LV.
--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, de‐
pending on the command.
-q|--quiet ...
Suppress output and log messages. Overrides --debug and
--verbose. Repeat once to also suppress any prompts with
answer 'no'.
--raidintegrity y|n
Enable or disable data integrity checksums for raid im‐
ages.
--raidintegrityblocksize Number
The block size to use for dm-integrity on raid images.
The integrity block size should usually match the device
logical block size, or the file system block size. It may
be less than the file system block size, but not less than
the device logical block size. Possible values: 512,
1024, 2048, 4096.
--raidintegritymode String
Use a journal (default) or bitmap for keeping integrity
checksums consistent in case of a crash. The bitmap areas
are recalculated after a crash, so corruption in those ar‐
eas would not be detected. A journal does not have this
problem. The journal mode doubles writes to storage, but
can improve performance for scattered writes packed into a
single journal write. bitmap mode can in theory achieve
full write throughput of the device, but would not benefit
from the potential scattered write optimization.
-r|--readahead auto|none|Number
Sets read ahead sector count of an LV. auto is the de‐
fault which allows the kernel to choose a suitable value
automatically. none is equivalent to zero.
-R|--regionsize Size[m|UNIT]
Size of each raid or mirror synchronization region.
lvm.conf(5) activation/raid_region_size can be used to
configure a default.
--reportformat basic|json
Overrides current output format for reports which is de‐
fined 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 identifi‐
cation. json produces report output in JSON format. See
lvmreport(7) for more information.
-k|--setactivationskip y|n
Persistently sets (yes) or clears (no) the "activation
skip" flag on an LV. An LV with this flag set is not ac‐
tivated unless the --ignoreactivationskip option is used
by the activation command. This flag is set by default on
new thin snapshot LVs. The flag is not applied to deacti‐
vation. The current value of the flag is indicated in the
lvs lv_attr bits.
--setautoactivation y|n
Set the autoactivation property on a VG or LV. Display
the property with vgs or lvs "-o autoactivation". When
the autoactivation property is disabled, the VG or LV will
not be activated by a command doing autoactivation
(vgchange, lvchange, or pvscan using -aay.) If autoacti‐
vation is disabled on a VG, no LVs will be autoactivated
in that VG, and the LV autoactivation property has no ef‐
fect. If autoactivation is enabled on a VG, autoactiva‐
tion can be disabled for individual LVs.
-L|--size Size[m|UNIT]
Specifies the size of the new LV. The --size and --ex‐
tents options are alternate methods of specifying size.
The total number of physical extents used will be greater
when redundant data is needed for RAID levels.
-s|--snapshot
Create a snapshot. Snapshots provide a "frozen image" of
an origin LV. The snapshot LV can be used, e.g. for back‐
ups, while the origin LV continues to be used. This op‐
tion can create a COW (copy on write) snapshot, or a thin
snapshot (in a thin pool.) Thin snapshots are created
when the origin is a thin LV and the size option is NOT
specified. Thin snapshots share the same blocks in the
thin pool, and do not allocate new space from the VG.
Thin snapshots are created with the "activation skip"
flag, see --setactivationskip. A thin snapshot of a non-
thin "external origin" LV is created when a thin pool is
specified. Unprovisioned blocks in the thin snapshot LV
are read from the external origin LV. The external origin
LV must be read-only. See lvmthin(7) for more information
about LVM thin provisioning. COW snapshots are created
when a size is specified. The size is allocated from space
in the VG, and is the amount of space that can be used for
saving COW blocks as writes occur to the origin or snap‐
shot. The size chosen should depend upon the amount of
writes that are expected; often 20% of the origin LV is
enough. If COW space runs low, it can be extended with
lvextend (shrinking is also allowed with lvreduce.) A
small amount of the COW snapshot LV size is used to track
COW block locations, so the full size is not available for
COW data blocks. Use lvs to check how much space is used,
and see --monitor to to automatically extend the size to
avoid running out of space.
-i|--stripes Number
Specifies the number of stripes in a striped LV. This is
the number of PVs (devices) that a striped LV is spread
across. Data that appears sequential in the LV is spread
across multiple devices in units of the stripe size (see
--stripesize). This does not change existing allocated
space, but only applies to space being allocated by the
command. When creating a RAID 4/5/6 LV, this number does
not include the extra devices that are required for pari‐
ty. The largest number depends on the RAID type (raid0:
64, raid10: 32, raid4/5: 63, raid6: 62), and when unspeci‐
fied, the default depends on the RAID type (raid0: 2,
raid10: 2, raid4/5: 3, raid6: 5.) To stripe a new raid LV
across all PVs by default, see lvm.conf(5) alloca‐
tion/raid_stripe_all_devices.
-I|--stripesize Size[k|UNIT]
The amount of data that is written to one device before
moving to the next in a striped LV.
-t|--test
Run in test mode. Commands will not update metadata. This
is implemented by disabling all metadata writing but nev‐
ertheless returning success to the calling function. This
may lead to unusual error messages in multi-stage opera‐
tions if a tool relies on reading back metadata it be‐
lieves has changed but hasn't.
-T|--thin
Specifies the command is handling a thin LV or thin pool.
See --type thin, --type thin-pool, and --virtualsize. See
lvmthin(7) for more information about LVM thin provision‐
ing.
--thinpool LV
The name of a thin pool LV.
--type linear|striped|snapshot|raid|mirror|thin|thin-pool|vdo|
vdo-pool|cache|cache-pool|writecache
The LV type, also known as "segment type" or "segtype".
See usage descriptions for the specific ways to use these
types. For more information about redundancy and perfor‐
mance (raid<N>, mirror, striped, linear) see lvmraid(7).
For thin provisioning (thin, thin-pool) see lvmthin(7).
For performance caching (cache, cache-pool) see
lvmcache(7). For copy-on-write snapshots (snapshot) see
usage definitions. For VDO (vdo) see lvmvdo(7). Several
commands omit an explicit type option because the type is
inferred from other options or shortcuts (e.g. --stripes,
--mirrors, --snapshot, --virtualsize, --thin, --cache,
--vdo). Use inferred types with care because it can lead
to unexpected results.
--vdo
Specifies the command is handling VDO LV. See --type vdo.
See lvmvdo(7) for more information about VDO usage.
--vdopool LV
The name of a VDO pool LV. See lvmvdo(7) for more infor‐
mation about VDO usage.
-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.
-V|--virtualsize Size[m|UNIT]
The virtual size of a new thin LV. See lvmthin(7) for
more information about LVM thin provisioning. Using vir‐
tual size (-V) and actual size (-L) together creates a
sparse LV. lvm.conf(5) global/sparse_segtype_default de‐
termines the default segment type used to create a sparse
LV. Anything written to a sparse LV will be returned when
reading from it. Reading from other areas of the LV will
return blocks of zeros. When using a snapshot to create a
sparse LV, a hidden virtual device is created using the
zero target, and the LV has the suffix _vorigin. Snap‐
shots are less efficient than thin provisioning when cre‐
ating large sparse LVs (GiB).
-W|--wipesignatures y|n
Controls detection and subsequent wiping of signatures on
new LVs. There is a prompt for each signature detected to
confirm its wiping (unless --yes is used to override con‐
firmations.) When not specified, signatures are wiped
whenever zeroing is done (see --zero). This behaviour can
be configured with lvm.conf(5) allocation/wipe_signa‐
tures_when_zeroing_new_lvs. If blkid wiping is used (‐
lvm.conf(5) allocation/use_blkid_wiping) and LVM is com‐
piled with blkid wiping support, then the blkid(8) library
is used to detect the signatures (use blkid -k to list the
signatures that are recognized). Otherwise, native LVM
code is used to detect signatures (only MD RAID, swap and
LUKS signatures are detected in this case.) The LV is not
wiped if the read only flag is set.
-y|--yes
Do not prompt for confirmation interactively but always
assume the answer yes. Use with extreme caution. (For au‐
tomatic no, see -qq.)
-Z|--zero y|n
Controls zeroing of the first 4KiB of data in the new LV.
Default is y. Snapshot COW volumes are always zeroed.
For thin pools, this controls zeroing of provisioned
blocks. LV is not zeroed if the read only flag is set.
Warning: trying to mount an unzeroed LV can cause the sys‐
tem to hang.
VG Volume Group name. See lvm(8) for valid names. For
lvcreate, the required VG positional arg may be omitted
when the VG name is included in another option, e.g.
--name VG/LV.
LV Logical Volume name. See lvm(8) for valid names. An LV
positional arg generally includes the VG name and LV name,
e.g. VG/LV. LV1 indicates the LV must have a specific
type, where the accepted LV types are listed. (raid repre‐
sents raid<N> type).
PV Physical Volume name, a device path under /dev. For com‐
mands managing physical extents, a PV positional arg gen‐
erally 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, regard‐
less of capitalization, e.g. 'k' and 'K' both refer to
1024. The default input unit is specified by letter, fol‐
lowed 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 con‐
trol --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.
Alternate command forms, advanced command usage, and listing of
all valid syntax for completeness.
Create an LV that returns errors when used.
lvcreate --type error -L|--size Size[m|UNIT] VG
[ -l|--extents Number[PERCENT] ]
[ COMMON_OPTIONS ]
—
Create an LV that returns zeros when read.
lvcreate --type zero -L|--size Size[m|UNIT] VG
[ -l|--extents Number[PERCENT] ]
[ COMMON_OPTIONS ]
—
Create a linear LV.
lvcreate --type linear -L|--size Size[m|UNIT] VG
[ -l|--extents Number[PERCENT] ]
[ COMMON_OPTIONS ]
[ PV ... ]
—
Create a striped LV (also see lvcreate --stripes).
lvcreate --type striped -L|--size Size[m|UNIT] VG
[ -l|--extents Number[PERCENT] ]
[ -i|--stripes Number ]
[ -I|--stripesize Size[k|UNIT] ]
[ COMMON_OPTIONS ]
[ PV ... ]
—
Create a mirror LV (also see --type raid1).
lvcreate --type mirror -L|--size Size[m|UNIT] VG
[ -l|--extents Number[PERCENT] ]
[ -i|--stripes Number ]
[ -I|--stripesize Size[k|UNIT] ]
[ -m|--mirrors Number ]
[ -R|--regionsize Size[m|UNIT] ]
[ --mirrorlog core|disk ]
[ COMMON_OPTIONS ]
[ PV ... ]
—
Create a COW snapshot LV of an origin LV
(also see --snapshot).
lvcreate --type snapshot -L|--size Size[m|UNIT] LV
[ -l|--extents Number[PERCENT] ]
[ -s|--snapshot ]
[ -i|--stripes Number ]
[ -I|--stripesize Size[k|UNIT] ]
[ -c|--chunksize Size[k|UNIT] ]
[ COMMON_OPTIONS ]
[ PV ... ]
—
Create a sparse COW snapshot LV of a virtual origin LV
(also see --snapshot).
lvcreate --type snapshot -L|--size Size[m|UNIT]
-V|--virtualsize Size[m|UNIT] VG
[ -l|--extents Number[PERCENT] ]
[ -s|--snapshot ]
[ -c|--chunksize Size[k|UNIT] ]
[ COMMON_OPTIONS ]
[ PV ... ]
—
Create a thin pool.
lvcreate -T|--thin -L|--size Size[m|UNIT] VG
[ --type thin-pool ] (implied)
[ -l|--extents Number[PERCENT] ]
[ -i|--stripes Number ]
[ -I|--stripesize Size[k|UNIT] ]
[ -c|--chunksize Size[k|UNIT] ]
[ --discards passdown|nopassdown|ignore ]
[ --errorwhenfull y|n ]
[ --poolmetadatasize Size[m|UNIT] ]
[ --poolmetadataspare y|n ]
[ COMMON_OPTIONS ]
[ PV ... ]
—
Create a thin pool named in --thinpool.
lvcreate -L|--size Size[m|UNIT] --thinpool LV_new VG
[ --type thin-pool ] (implied)
[ -l|--extents Number[PERCENT] ]
[ -i|--stripes Number ]
[ -I|--stripesize Size[k|UNIT] ]
[ -T|--thin ]
[ -c|--chunksize Size[k|UNIT] ]
[ --discards passdown|nopassdown|ignore ]
[ --errorwhenfull y|n ]
[ --poolmetadatasize Size[m|UNIT] ]
[ --poolmetadataspare y|n ]
[ COMMON_OPTIONS ]
[ PV ... ]
—
Create a cache pool named by the --cachepool arg
(variant, uses --cachepool in place of --name).
lvcreate --type cache-pool -L|--size Size[m|UNIT]
--cachepool LV_new VG
[ -l|--extents Number[PERCENT] ]
[ -i|--stripes Number ]
[ -I|--stripesize Size[k|UNIT] ]
[ -H|--cache ]
[ -c|--chunksize Size[k|UNIT] ]
[ --cachemode writethrough|writeback|passthrough ]
[ --cachepolicy String ]
[ --cachesettings String ]
[ --cachemetadataformat auto|1|2 ]
[ --poolmetadatasize Size[m|UNIT] ]
[ --poolmetadataspare y|n ]
[ COMMON_OPTIONS ]
[ PV ... ]
—
Create a thin LV in a thin pool.
lvcreate --type thin -V|--virtualsize Size[m|UNIT]
--thinpool LV VG
[ -T|--thin ]
[ COMMON_OPTIONS ]
—
Create a thin LV in a thin pool named in the first arg
(variant, also see --thinpool for naming pool).
lvcreate --type thin -V|--virtualsize Size[m|UNIT] LV1
[ -T|--thin ]
[ COMMON_OPTIONS ]
LV1 types: thinpool
—
Create a thin LV in the thin pool named in the first arg
(also see --thinpool for naming pool.)
lvcreate -V|--virtualsize Size[m|UNIT] LV1
[ --type thin ] (implied)
[ -T|--thin ]
[ COMMON_OPTIONS ]
LV1 types: thinpool
—
Create a thin LV that is a snapshot of an existing thin LV.
lvcreate --type thin LV1
[ -T|--thin ]
[ COMMON_OPTIONS ]
LV1 types: thin
—
Create a thin LV that is a snapshot of an existing thin LV.
lvcreate -T|--thin LV1
[ --type thin ] (implied)
[ COMMON_OPTIONS ]
LV1 types: thin
—
Create a thin LV that is a snapshot of an external origin LV.
lvcreate -s|--snapshot --thinpool LV LV
[ --type thin ] (implied)
[ COMMON_OPTIONS ]
—
Create a VDO LV with VDO pool.
lvcreate --vdo -L|--size Size[m|UNIT] VG
[ --type vdo ] (implied)
[ -l|--extents Number[PERCENT] ]
[ -i|--stripes Number ]
[ -I|--stripesize Size[k|UNIT] ]
[ -V|--virtualsize Size[m|UNIT] ]
[ --vdopool LV_new ]
[ --compression y|n ]
[ --deduplication y|n ]
[ COMMON_OPTIONS ]
[ PV ... ]
—
Create a VDO LV with VDO pool.
lvcreate --vdopool LV_new -L|--size Size[m|UNIT] VG
[ --type vdo ] (implied)
[ -l|--extents Number[PERCENT] ]
[ -i|--stripes Number ]
[ -I|--stripesize Size[k|UNIT] ]
[ -V|--virtualsize Size[m|UNIT] ]
[ --compression y|n ]
[ --deduplication y|n ]
[ COMMON_OPTIONS ]
[ PV ... ]
—
Create a thin LV, first creating a thin pool for it,
where the new thin pool is named by the --thinpool arg.
lvcreate --type thin -V|--virtualsize Size[m|UNIT]
-L|--size Size[m|UNIT] --thinpool LV_new VG
[ -l|--extents Number[PERCENT] ]
[ -i|--stripes Number ]
[ -I|--stripesize Size[k|UNIT] ]
[ -T|--thin ]
[ -c|--chunksize Size[k|UNIT] ]
[ --discards passdown|nopassdown|ignore ]
[ --errorwhenfull y|n ]
[ --poolmetadatasize Size[m|UNIT] ]
[ --poolmetadataspare y|n ]
[ COMMON_OPTIONS ]
[ PV ... ]
—
Create a thin LV, first creating a thin pool for it,
where the new thin pool is named by --thinpool.
lvcreate -V|--virtualsize Size[m|UNIT] -L|--size Size[m|UNIT]
--thinpool LV_new VG
[ --type thin ] (implied)
[ -l|--extents Number[PERCENT] ]
[ -i|--stripes Number ]
[ -I|--stripesize Size[k|UNIT] ]
[ -T|--thin ]
[ -c|--chunksize Size[k|UNIT] ]
[ --discards passdown|nopassdown|ignore ]
[ --errorwhenfull y|n ]
[ --poolmetadatasize Size[m|UNIT] ]
[ --poolmetadataspare y|n ]
[ COMMON_OPTIONS ]
[ PV ... ]
—
Create a thin LV, first creating a thin pool for it,
where the new thin pool is named in the first arg,
or the new thin pool name is generated when the first
arg is a VG name.
lvcreate --type thin -V|--virtualsize Size[m|UNIT]
-L|--size Size[m|UNIT] VG|LV_new
[ -l|--extents Number[PERCENT] ]
[ -i|--stripes Number ]
[ -I|--stripesize Size[k|UNIT] ]
[ -T|--thin ]
[ -c|--chunksize Size[k|UNIT] ]
[ --discards passdown|nopassdown|ignore ]
[ --errorwhenfull y|n ]
[ --poolmetadatasize Size[m|UNIT] ]
[ --poolmetadataspare y|n ]
[ COMMON_OPTIONS ]
[ PV ... ]
—
Create a thin LV, first creating a thin pool for it,
where the new thin pool is named in the first arg,
or the new thin pool name is generated when the first
arg is a VG name.
lvcreate -T|--thin -V|--virtualsize Size[m|UNIT]
-L|--size Size[m|UNIT] VG|LV_new
[ --type thin ] (implied)
[ -l|--extents Number[PERCENT] ]
[ -i|--stripes Number ]
[ -I|--stripesize Size[k|UNIT] ]
[ -c|--chunksize Size[k|UNIT] ]
[ --discards passdown|nopassdown|ignore ]
[ --errorwhenfull y|n ]
[ --poolmetadatasize Size[m|UNIT] ]
[ --poolmetadataspare y|n ]
[ COMMON_OPTIONS ]
[ PV ... ]
—
Create a thin LV, first creating a thin pool for it.
Create a sparse snapshot of a virtual origin LV
Chooses type thin or snapshot according to
config setting sparse_segtype_default.
lvcreate -L|--size Size[m|UNIT] -V|--virtualsize Size[m|UNIT] VG
[ --type thin|snapshot ] (implied)
[ -l|--extents Number[PERCENT] ]
[ -i|--stripes Number ]
[ -I|--stripesize Size[k|UNIT] ]
[ -s|--snapshot ]
[ -T|--thin ]
[ -c|--chunksize Size[k|UNIT] ]
[ --discards passdown|nopassdown|ignore ]
[ --errorwhenfull y|n ]
[ --poolmetadatasize Size[m|UNIT] ]
[ --poolmetadataspare y|n ]
[ COMMON_OPTIONS ]
[ PV ... ]
—
Create a new LV, then attach the specified cachepool
which converts the new LV to type cache.
lvcreate -L|--size Size[m|UNIT] --cachepool LV VG
[ --type cache ] (implied)
[ -l|--extents Number[PERCENT] ]
[ -i|--stripes Number ]
[ -I|--stripesize Size[k|UNIT] ]
[ -H|--cache ]
[ -c|--chunksize Size[k|UNIT] ]
[ --cachemode writethrough|writeback|passthrough ]
[ --cachepolicy String ]
[ --cachesettings String ]
[ --cachemetadataformat auto|1|2 ]
[ COMMON_OPTIONS ]
[ PV ... ]
—
Create a new LV, then attach the specified cachepool
which converts the new LV to type cache.
(variant, also use --cachepool).
lvcreate --type cache -L|--size Size[m|UNIT] LV1
[ -l|--extents Number[PERCENT] ]
[ -i|--stripes Number ]
[ -I|--stripesize Size[k|UNIT] ]
[ -H|--cache ]
[ -c|--chunksize Size[k|UNIT] ]
[ --cachemode writethrough|writeback|passthrough ]
[ --cachepolicy String ]
[ --cachesettings String ]
[ --cachemetadataformat auto|1|2 ]
[ --poolmetadatasize Size[m|UNIT] ]
[ --poolmetadataspare y|n ]
[ COMMON_OPTIONS ]
[ PV ... ]
LV1 types: cachepool
—
When the LV arg is a cachepool, then create a new LV and
attach the cachepool arg to it.
(variant, use --type cache and --cachepool.)
When the LV arg is not a cachepool, then create a new cachepool
and attach it to the LV arg (alternative, use lvconvert.)
lvcreate -H|--cache -L|--size Size[m|UNIT] LV
[ --type cache ] (implied)
[ -l|--extents Number[PERCENT] ]
[ -c|--chunksize Size[k|UNIT] ]
[ -i|--stripes Number ]
[ -I|--stripesize Size[k|UNIT] ]
[ --cachemode writethrough|writeback|passthrough ]
[ --cachepolicy String ]
[ --cachesettings String ]
[ --cachemetadataformat auto|1|2 ]
[ --poolmetadatasize Size[m|UNIT] ]
[ --poolmetadataspare y|n ]
[ COMMON_OPTIONS ]
[ PV ... ]
—
Create a striped LV with 3 stripes, a stripe size of 8 KiB and a
size of 100 MiB. The LV name is chosen by lvcreate.
lvcreate -i 3 -I 8 -L 100m vg00
Create a raid1 LV with two images, and a usable size of 500 MiB.
This operation requires two devices, one for each mirror image.
RAID metadata (superblock and bitmap) is also included on the two
devices.
lvcreate --type raid1 -m1 -L 500m -n mylv vg00
Create a mirror LV with two images, and a usable size of 500 MiB.
This operation requires three devices: two for mirror images and
one for a disk log.
lvcreate --type mirror -m1 -L 500m -n mylv vg00
Create a mirror LV with 2 images, and a usable size of 500 MiB.
This operation requires 2 devices because the log is in memory.
lvcreate --type mirror -m1 --mirrorlog core -L 500m -n mylv vg00
Create a copy-on-write snapshot of an LV:
lvcreate --snapshot --size 100m --name mysnap vg00/mylv
Create a copy-on-write snapshot with a size sufficient for over‐
writing 20% of the size of the original LV.
lvcreate -s -l 20%ORIGIN -n mysnap vg00/mylv
Create a sparse LV with 1 TiB of virtual space, and actual space
just under 100 MiB.
lvcreate --snapshot --virtualsize 1t --size 100m --name mylv vg00
Create a linear LV with a usable size of 64 MiB on specific phys‐
ical extents.
lvcreate -L 64m -n mylv vg00 /dev/sda:0-7 /dev/sdb:0-7
Create a RAID5 LV with a usable size of 5 GiB, 3 stripes, a
stripe size of 64 KiB, using a total of 4 devices (including one
for parity).
lvcreate --type raid5 -L 5G -i 3 -I 64 -n mylv vg00
Create a RAID5 LV using all of the free space in the VG and span‐
ning all the PVs in the VG (note that the command will fail if
there are more than 8 PVs in the VG, in which case -i 7 must be
used to get to the current maximum of 8 devices including parity
for RaidLVs).
lvcreate --config allocation/raid_stripe_all_devices=1
--type raid5 -l 100%FREE -n mylv vg00
Create RAID10 LV with a usable size of 5 GiB, using 2 stripes,
each on a two-image mirror. (Note that the -i and -m arguments
behave differently: -i specifies the total number of stripes, but
-m specifies the number of images in addition to the first im‐
age).
lvcreate --type raid10 -L 5G -i 2 -m 1 -n mylv vg00
Create a 1 TiB thin LV mythin, with 256 GiB thinpool tpool0 in
vg00.
lvcreate -T -V 1T --size 256G --name mythin vg00/tpool0
Create a 1 TiB thin LV, first creating a new thin pool for it,
where the thin pool has 100 MiB of space, uses 2 stripes, has a
64 KiB stripe size, and 256 KiB chunk size.
lvcreate --type thin --name mylv --thinpool mypool
-V 1t -L 100m -i 2 -I 64 -c 256 vg00
Create a thin snapshot of a thin LV (the size option must not be
used, otherwise a copy-on-write snapshot would be created).
lvcreate --snapshot --name mysnap vg00/thinvol
Create a thin snapshot of the read-only inactive LV named "ori‐
gin" which becomes an external origin for the thin snapshot LV.
lvcreate --snapshot --name mysnap --thinpool mypool vg00/origin
Create a cache pool from a fast physical device. The cache pool
can then be used to cache an LV.
lvcreate --type cache-pool -L 1G -n my_cpool vg00 /dev/fast1
Create a cache LV, first creating a new origin LV on a slow phys‐
ical device, then combining the new origin LV with an existing
cache pool.
lvcreate --type cache --cachepool my_cpool
-L 100G -n mylv vg00 /dev/slow1
Create a VDO LV vdo0 with VDOPoolLV size of 10 GiB and name
vpool1.
lvcreate --vdo --size 10G --name vdo0 vg00/vpool1
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 2024-06-14. (At that
time, the date of the most recent commit that was found in the
repository was 2024-06-11.) 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 2.03.25(2)-git (2024-05-16) LVCREATE(8)
Pages that refer to this page: lvmcache(7), lvmraid(7), lvmreport(7), lvmthin(7), lvmvdo(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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