LVEXTEND(8) System Manager's Manual LVEXTEND(8)
NAME
lvextend -- extend the size of a logical volume
SYNOPSIS
lvextend [--alloc AllocationPolicy] [-A|--autobackup {y|n}] [--command-
profile ProfileName] [-d|--debug] [-h|-?|--help] [-f|--force]
[-i|--stripes Stripes [-I|--stripesize StripeSize]] {-l|--extents
[+]LogicalExtentsNumber[%{VG|LV|PVS|FREE|ORIGIN}] | -L|--size [+]Logi-
calVolumeSize[bBsSkKmMgGtTpPeE]} [-n|--nofsck] [--noudevsync]
[-r|--resizefs] [--use-policies] [-t|--test] [-v|--verbose] LogicalVol-
umePath [PhysicalVolumePath[:PE[-PE]]...]
DESCRIPTION
lvextend allows you to extend the size of a logical volume. Extension
of snapshot logical volumes (see lvcreate(8) for information to create
snapshots) is supported as well. But to change the number of copies in
a mirrored logical volume use lvconvert(8).
OPTIONS
See lvm(8) for common options.
-f, --force
Proceed with size extension without prompting.
-l, --extents [+]LogicalExtentsNumber[%{VG|LV|PVS|FREE|ORIGIN}]
Extend or set the logical volume size in units of logical
extents. With the '+' sign the value is added to the actual
size of the logical volume and without it, the value is taken as
an absolute one. The total number of physical extents allocated
will be greater than this, for example, if the volume is mir-
rored. The number can also be expressed as a percentage of the
total space in the Volume Group with the suffix %VG, relative to
the existing size of the Logical Volume with the suffix %LV, of
the remaining free space for the specified PhysicalVolume(s)
with the suffix %PVS, as a percentage of the remaining free
space in the Volume Group with the suffix %FREE, or (for a snap-
shot) as a percentage of the total space in the Origin Logical
Volume with the suffix %ORIGIN. The resulting value is rounded
upward. N.B. In a future release, when expressed as a percent-
age with PVS, VG or FREE, the number will be treated as an
approximate upper limit for the total number of physical extents
to be allocated (including extents used by any mirrors, for
example). The code may currently allocate more space than you
might otherwise expect.
-L, --size [+]LogicalVolumeSize[bBsSkKmMgGtTpPeE]
Extend or set the logical volume size in units of megabytes. A
size suffix of M for megabytes, G for gigabytes, T for ter-
abytes, P for petabytes or E for exabytes is optional. With the
+ sign the value is added to the actual size of the logical vol-
ume and without it, the value is taken as an absolute one.
-i, --stripes Stripes
Gives the number of stripes for the extension. Not applicable
to LVs using the original metadata LVM format, which must use a
single value throughout.
-I, --stripesize StripeSize
Gives the number of kilobytes for the granularity of the
stripes. Not applicable to LVs using the original metadata LVM
format, which must use a single value throughout.
StripeSize must be 2^n (n = 2 to 9)
-n, --nofsck
Do not perform fsck before extending filesystem when filesystem
requires it. You may need to use --force to proceed with this
option.
--noudevsync
Disable udev synchronisation. The process will not wait for
notification from udev. It will continue irrespective of any
possible udev processing in the background. You should only use
this if udev is not running or has rules that ignore the devices
LVM2 creates.
-r, --resizefs
Resize underlying filesystem together with the logical volume
using fsadm(8).
--use-policies
Resizes the logical volume according to configured policy. See
lvm.conf(5) for some details.
Examples
Extends the size of the logical volume "vg01/lvol10" by 54MiB on physi-
cal volume /dev/sdk3. This is only possible if /dev/sdk3 is a member of
volume group vg01 and there are enough free physical extents in it:
lvextend -L +54 /dev/vg01/lvol10 /dev/sdk3
Extends the size of logical volume "vg01/lvol01" by the amount of free
space on physical volume /dev/sdk3. This is equivalent to specifying
"-l +100%PVS" on the command line:
lvextend /dev/vg01/lvol01 /dev/sdk3
Extends a logical volume "vg01/lvol01" by 16MiB using physical extents
/dev/sda:8-9 and /dev/sdb:8-9 for allocation of extents:
lvextend -L+16M vg01/lvol01 /dev/sda:8-9 /dev/sdb:8-9
SEE ALSO
fsadm(8), lvm(8), lvm.conf(5), lvcreate(8), lvconvert(8), lvreduce(8),
lvresize(8), lvchange(8)
Sistina Software UK LVM TOOLS 2.02.111(2) (2014-09-01) LVEXTEND(8)
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