NAME¶
lvextend - extend the size of a logical volume
SYNOPSIS¶
lvextend [--alloc AllocationPolicy] [-A|--autobackup y|n] [-d|--debug]
[-h|-?|--help] [--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] [-t|--test] [-v|--verbose] LogicalVolumePath
[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 for common options.
- --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.
- -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
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
snapshot) as a percentage of the total space in the Origin Logical Volume
with the suffix %ORIGIN. The resulting value is rounded upward.
- -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
terabytes, P for petabytes or E for exabytes is optional. 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.
- -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)
- -f, --force
- Proceed with size extension without prompting.
- -n, --nofsck
- Do not perform fsck before extending 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).
Examples¶
"lvextend -L +54 /dev/vg01/lvol10 /dev/sdk3" tries to extend the size
of that logical volume by 54MB on physical 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 /dev/vg01/lvol01 /dev/sdk3" tries to extend the size of that
logical volume by the amount of free space on physical volume /dev/sdk3. This
is equivalent to specifying "-l +100%PVS" on the command line.
"lvextend -L+16M vg01/lvol01 /dev/sda:8-9 /dev/sdb:8-9"
tries to extend a logical volume "vg01/lvol01" by 16MB using physical
extents /dev/sda:8-9 and /dev/sdb:8-9 for allocation of extents.
SEE ALSO¶
fsadm(8),
lvm(8),
lvcreate(8),
lvconvert(8),
lvreduce(8),
lvresize(8),
lvchange(8)