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LVREDUCE(8) System Manager's Manual LVREDUCE(8) NAME lvreduce - reduce the size of a logical volume SYNOPSIS lvreduce [-A|--autobackup y|n] [-d|--debug] [-f|--force] [-h|-?|--help] {-l|--extents [-]LogicalExtentsNumber[%{VG|LV|FREE}] | -L|--size [-]LogicalVolumeSize[kKmMgGtT]} [-t|--test] [-v|--verbose] LogicalVol- ume[Path] DESCRIPTION lvreduce allows you to reduce the size of 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 re- sized before running lvreduce so that the extents that are to be re- moved are not in use. Shrinking 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). Sizes will be rounded if necessary - for example, the volume size must be an exact number of extents and the size of a striped segment must be a multiple of the number of stripes. OPTIONS See lvm for common options. -f, --force Force size reduction without any question. -l, --extents [-]LogicalExtentsNumber[%{VG|LV|FREE}] Reduce or set the logical volume size in units of logical ex- tents. With the - sign the value will be subtracted from the logical volume's actual size and without it the will be taken as an absolute size. The number can also be expressed as a per- centage of the total space in the Volume Group with the suffix %VG or relative to the existing size of the Logical Volume with the suffix %LV or as a percentage of the remaining free space in the Volume Group with the suffix %FREE. -L, --size [-]LogicalVolumeSize[kKmMgGtTpPeE] Reduce or set the logical volume size in units of megabyte by default. A size suffix of k for kilobyte, m for megabyte, g for gigabytes, t for terabytes, p for petabytes or e for exabytes is optional. With the - sign the value will be subtracted from the logical volume's actual size and without it it will be taken as an absolute size. Example "lvreduce -l -3 vg00/lvol1" reduces the size of logical volume lvol1 in volume group vg00 by 3 logical extents. SEE ALSO lvchange(8), lvconvert(8), lvcreate(8), lvextend(8), lvm(8), lvre- size(8), vgreduce(8) Sistina Software UK LVM TOOLS 2.02.44-cvs (02-17-09) LVREDUCE(8)