mirror of
git://sourceware.org/git/lvm2.git
synced 2024-12-21 13:34:40 +03:00
102 lines
3.8 KiB
Groff
102 lines
3.8 KiB
Groff
.TH LVEXTEND 8 "LVM TOOLS #VERSION#" "Sistina Software UK" \" -*- nroff -*-
|
|
.SH NAME
|
|
lvextend \- extend the size of a logical volume
|
|
.SH SYNOPSIS
|
|
.B 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]]...]
|
|
.SH DESCRIPTION
|
|
lvextend allows you to extend the size of a logical volume.
|
|
Extension of snapshot logical volumes (see
|
|
.B lvcreate(8)
|
|
for information to create snapshots) is supported as well.
|
|
But to change the number of copies in a mirrored logical
|
|
volume use
|
|
.BR lvconvert (8).
|
|
.SH OPTIONS
|
|
See \fBlvm\fP for common options.
|
|
.TP
|
|
.I \-\-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.
|
|
.TP
|
|
.I \-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.
|
|
.TP
|
|
.I \-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.
|
|
.TP
|
|
.I \-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.
|
|
.TP
|
|
.I \-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.
|
|
.br
|
|
StripeSize must be 2^n (n = 2 to 9)
|
|
.TP
|
|
.I \-f, \-\-force
|
|
Proceed with size extension without prompting.
|
|
.TP
|
|
.I \-n, \-\-nofsck
|
|
Do not perform fsck before extending filesystem when filesystem
|
|
requires it. You may need to use \fB--force\fR to proceed with
|
|
this option.
|
|
.TP
|
|
.I \-r, \-\-resizefs
|
|
Resize underlying filesystem together with the logical volume using
|
|
\fBfsadm\fR(8).
|
|
.SH 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.
|
|
|
|
.br
|
|
"lvextend -L+16M vg01/lvol01 /dev/sda:8-9 /dev/sdb:8-9"
|
|
.br
|
|
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.
|
|
|
|
.SH SEE ALSO
|
|
.BR fsadm (8),
|
|
.BR lvm (8),
|
|
.BR lvcreate (8),
|
|
.BR lvconvert (8),
|
|
.BR lvreduce (8),
|
|
.BR lvresize (8),
|
|
.BR lvchange (8)
|