Lvreduce

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lvreduce - Reduce the size of a logical volume

Shrinking is not supported on a GFS2 or XFS file system

Examples

Reduce to a total size of 1GB:

TOTAL 1GB: lvreduce --resizefs -L 1GB vg01/lvol1

Example:
lvreduce --resizefs -L 4TB VG_NAME/LV_NAME
Do you want to unmount "/srv" ? [Y|n] y
fsck from util-linux 2.31.1
Resizing the filesystem on /dev/mapper/VG_NAME-LV_NAME to 1073741824 (4k) blocks.
The filesystem on /dev/mapper/VG_NAME-LV_NAME is now 1073741824 (4k) blocks long.

 Size of logical volume VG_NAME/LV_NAME changed from <6.00 TiB (1572863 extents) to 4.00 TiB (1048576 extents).
 Logical volume VG_NAME/LV_NAME successfully resized.

Related commands:

resize2fs
chfs (AIX)

See also

LVM: LVM errors LVM scan commands lkvmetad, Add a new disk

scan: pvscan vgscan

LVM: lvs lvmscan lvm fullreport lvmreport lvmconfig lvmdump lvmcheck lvm dumpconfig

Scan: pvs vgs lvs pvscan vgscan

PV: pvcreate pvremove pvscan pvremove pvscan pvs pvchange pvck pvdisplay pvresize

LV: lvdisplay lvcreate lvremove, lvresize, lvextend, lvreduce, lvrename

VG: vgdisplay,vgcreate,vgremove, vgextend, vgreduce, vgscan, vgchange, vgrename, vgcfgbackup, vgcfgrestore, vgimportclone, vgck

Check commands: pvck vgck

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LVM

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