NAME¶
lvresize - resize a logical volume
SYNOPSIS¶
lvresize [
--alloc AllocationPolicy]
[
--noudevsync] [
-i|
--stripes Stripes
[
-I|
--stripesize StripeSize]]
{[
-l|
--extents
[
+|
-]
LogicalExtentsNumber[
%{
VG|
LV|
PVS|
FREE|
ORIGIN}]
| [
-L|
--size
[
+|
-]
LogicalVolumeSize[
bBsSkKmMgGtTpPeE]}
[
-f|
--force] [
-n|
--nofsck]
[
-r|
--resizefs]
LogicalVolume{
Name|
Path}
[
PhysicalVolumePath[
:PE[
-PE]]...]
DESCRIPTION¶
lvresize allows you to resize a logical volume. Be careful when reducing a
logical volume's size, because data in the reduced part is lost!!! You should
therefore ensure that any filesystem on the volume is shrunk first so that the
extents that are to be removed are not in use. Resizing snapshot logical
volumes (see
lvcreate(8) for information about creating 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
- Force resize without prompting even when it may cause data
loss.
- -n, --nofsck
- Do not perform fsck before resizing filesystem when
filesystem requires it. You may need to use --force to proceed with
this option.
- -r, --resizefs
- Resize underlying filesystem together with the logical
volume using fsadm(8).
- -l, --extents
[+|-]LogicalExtentsNumber[%{VG|LV|PVS|FREE|ORIGIN}]
- Change or set the logical volume size in units of logical
extents. With the + or - sign the value is added to or
subtracted from the actual size of the logical volume and without it, the
value is taken as an absolute one. 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, as a percentage of the remaining free space of the
PhysicalVolumes on the command line with the suffix %PVS, as a
percentage of the remaining free space in the Volume Group with the suffix
%FREE, or (for a snapshot) as a percentage of the total space in
the Origin Logical Volume with the suffix %ORIGIN. The resulting
value is rounded downward for the substraction otherwise it is rounded
upward.
- -L, --size
[+|-]LogicalVolumeSize[bBsSkKmMgGtTpPeE]
- Change or set the logical volume size in units of
megabytes. A size suffix of M for megabytes, G for
gigabytes, T for terabytes, P for petabytes or E for
exabytes is optional. With the + or - sign the value is
added or subtracted from the actual size of the logical volume and rounded
to the full extent size and without it, the value is taken as an absolute
one.
- -i, --stripes Stripes
- Gives the number of stripes to use when extending a Logical
Volume. Defaults to whatever the last segment of the Logical Volume uses.
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. Defaults to whatever the last segment of the Logical Volume uses.
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).
- --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.
EXAMPLES¶
Extend a logical volume vg1/lv1 by 16MB using physical extents /dev/sda:0-1 and
/dev/sdb:0-1 for allocation of extents:
lvresize -L+16M vg1/lv1 /dev/sda:0-1 /dev/sdb:0-1
SEE ALSO¶
fsadm(8),
lvm(8),
lvconvert(8),
lvcreate(8),
lvreduce(8),
lvchange(8)