LVRESIZE(8) |
System Manager's Manual |
LVRESIZE(8) |
lvresize - resize a logical volume
lvresize [--alloc AllocationPolicy] [-A|--autobackup y|n] [-d|--debug]
[-h|-?|--help] [-i|--stripes Stripes [-I|--stripesize StripeSize]]
{-l|--extents [+]LogicalExtentsNumber[%{VG|LV|PVS|FREE}] | -L|--size
[+]LogicalVolumeSize[kKmMgGtT]} [-t|--test] [-v|--verbose] LogicalVolumePath
[PhysicalVolumePath...]
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).
See lvm for common options.
- -l, --extents [+|-]LogicalExtentsNumber[%{VG|LV|PVS|FREE}]
- 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, or as a percentage of the remaining free space in the Volume Group
with the suffix %FREE.
- -L, --size [+|-]LogicalVolumeSize[kKmMgGtTpPeE]
- 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 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 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)
lvm(8), lvconvert(8), lvcreate(8), lvreduce(8),
lvchange(8)