LVRESIZE(8)LVRESIZE(8)NAMElvresize - resize a logical volume
SYNOPSISlvresize [--alloc AllocationPolicy] [-A|--autobackup y|n] [-d|--debug]
[-h|-?|--help] [--noudevsync] [-i|--stripes Stripes [-I|--stripesize
StripeSize]] {-l|--extents [+]LogicalExtentsNum‐
ber[%{VG|LV|PVS|FREE|ORIGIN}] | -L|--size [+]LogicalVolumeSize[bBsSkKm‐
MgGtTpPeE]} [-f|--force] [-n|--nofsck] [-r|--resizefs] [-t|--test]
[-v|--verbose] LogicalVolumePath [PhysicalVolumePath[:PE[-PE]]...]
DESCRIPTIONlvresize allows you to resize a logical volume. Be careful when reduc‐
ing 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 informa‐
tion 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 for common options.
-f, --force
Force resize without prompting even when it may cause data loss.
-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 sub‐
tracted 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 snap‐
shot) as a percentage of the total space in the Origin Logical
Volume with the suffix %ORIGIN.
-n, --nofsck
Do not perform fsck before resizing 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).
-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 ter‐
abytes, P for petabytes or E for exabytes is optional. 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.
-i, --stripes Stripes
Gives the number of stripes to use when extending a Logical Vol‐
ume. Defaults to whatever the last segment of the Logical Vol‐
ume 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)
Examples
"lvresize -L+16M vg1/lv1 /dev/sda:0-1 /dev/sdb:0-1"
tries to extend a logical volume "vg1/lv1" by 16MB using physical
extents /dev/sda:0-1 and /dev/sdb:0-1 for allocation of extents.
SEE ALSOfsadm(8), lvm(8), lvconvert(8), lvcreate(8), lvreduce(8), lvchange(8)Sistina Software UK LVM TOOLS 2.02.88(2)-RHEL5 (2013-06-25) LVRESIZE(8)
