lvm2/man/lvcreate.8_end

.SH EXAMPLES

Create a striped LV with 3 stripes, a stripe size of 8KiB and a size of 100MiB.
The LV name is chosen by lvcreate.
.br
.B lvcreate \-i 3 \-I 8 \-L 100m vg00

Create a raid1 LV with two images, and a useable 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.
.br
.B lvcreate \-\-type raid1 \-m1 \-L 500m \-n mylv vg00

Create a mirror LV with two images, and a useable size of 500 MiB.
This operation requires three devices: two for mirror images and
one for a disk log.
.br
.B lvcreate \-\-type mirror \-m1 \-L 500m \-n mylv vg00

Create a mirror LV with 2 images, and a useable size of 500 MiB.
This operation requires 2 devices because the log is in memory.
.br
.B lvcreate \-\-type mirror \-m1 \-\-mirrorlog core \-L 500m \-n mylv vg00

Create a copy\-on\-write snapshot of an LV:
.br
.B lvcreate \-\-snapshot \-\-size 100m \-\-name mysnap vg00/mylv

Create a copy\-on\-write snapshot with a size sufficient
for overwriting 20% of the size of the original LV.
.br
.B lvcreate \-s \-l 20%ORIGIN \-n mysnap vg00/mylv

Create a sparse LV with 1TiB of virtual space, and actual space just under
100MiB.
.br
.B lvcreate \-\-snapshot \-\-virtualsize 1t \-\-size 100m \-\-name mylv vg00

Create a linear LV with a usable size of 64MiB on specific physical extents.
.br
.B lvcreate \-L 64m \-n mylv vg00 /dev/sda:0\-7 /dev/sdb:0\-7

Create a RAID5 LV with a usable size of 5GiB, 3 stripes, a stripe size of
64KiB, using a total of 4 devices (including one for parity).
.br
.B 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 spanning 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 \fB\-i 7\fP must be used to get to the current maximum of
8 devices including parity for RaidLVs).
.br
.B lvcreate \-\-config allocation/raid_stripe_all_devices=1
.RS
.B \-\-type raid5 \-l 100%FREE \-n mylv vg00
.RE

Create RAID10 LV with a usable size of 5GiB, using 2 stripes, each on
a two-image mirror. (Note that the \fB-i\fP and \fB-m\fP arguments behave
differently:
\fB-i\fP specifies the total number of stripes,
but \fB-m\fP specifies the number of images in addition
to the first image).
.br
.B lvcreate \-\-type raid10 \-L 5G \-i 2 \-m 1 \-n mylv vg00

Create a 1TiB thin LV, first creating a new thin pool for it, where
the thin pool has 100MiB of space, uses 2 stripes, has a 64KiB stripe
size, and 256KiB chunk size.
.br
.B lvcreate \-\-type thin \-\-name mylv \-\-thinpool mypool
.RS
.B \-V 1t \-L 100m \-i 2 \-I 64 \-c 256 vg00
.RE

Create a thin snapshot of a thin LV (the size option must not be
used, otherwise a copy-on-write snapshot would be created).
.br
.B lvcreate \-\-snapshot \-\-name mysnap vg00/thinvol

Create a thin snapshot of the read-only inactive LV named "origin"
which becomes an external origin for the thin snapshot LV.
.br
.B 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.
.br
.B 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 physical device,
then combining the new origin LV with an existing cache pool.
.br
.B lvcreate \-\-type cache \-\-cachepool my_cpool
.RS
.B \-L 100G \-n mylv vg00 /dev/slow1
.RE