LVREDUCE(8)							  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	|   -L/--size
       [-]LogicalVolumeSize[kKmMgGtT]} [-t/--test] [-v/--verbose] LogicalVol-
       ume[Path]

DESCRIPTION
       lvreduce allows you to reduce the size of a logical volume.  Be	care-
       ful 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
       resized	before	running	 lvreduce  so that the extents that are to be
       removed are not in use.
       Shrinking snapshot logical volumes (see lvcreate(8) for information to
       create snapshots) is supported as well.
       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
	      Reduce  or  set  the  logical  volume  size in units of logical
	      extents.	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.

       -L, --size [-]LogicalVolumeSize[kKmMgGtT]
	      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 gigabyte or t for terabyte 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),  lvcreate(8),  lvextend(8),	 lvm(8),  lvresize(8),	vgre-
       duce(8)



Sistina Software UK		  LVM TOOLS			  LVREDUCE(8)

UNIX/Linux commands referenced on this page:

1. size
2. as
3. lvm