1
0
mirror of git://sourceware.org/git/lvm2.git synced 2024-10-26 17:25:10 +03:00
lvm2/man/lvcreate.8_end
Heinz Mauelshagen 36cac41115 man-generator/man/help: simplify hyphen escaping
Commits a29bb6a14b
    ... 5c199d99f4
narrowed down on addressing the escaping of hyphens
in the dynamic creation of manuals whilst avoiding
them in creating help texts.  This lead to a sequence
of slipping through hyphens adrressed by additional
patches in aforementioned commit series.

On the other hand, postprocessing dynamically man-generator
created and statically provided manuals catches all hyphens
in need of escaping.

Changes:
- revert the above commits whilst keeping man-generator
  streamlining and the detection of any '\' when generating
  help texts in order to avoid escapes to slip in

- Dynamically escape hyphens in manaual pages using sed(1)
  in the respective Makefile targets

- remove any manually added escaping on hyphens from any
  static manual sources or headers
2017-03-27 16:49:39 +02:00

98 lines
3.3 KiB
Plaintext

.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