LVRESIZE(8)						      System Manager's Manual						       LVRESIZE(8)

NAME

       lvresize - resize a logical volume

SYNOPSIS

       lvresize [--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]}
       [-t|--test] [-v|--verbose] LogicalVolumePath [PhysicalVolumePath[:PE[-PE]]...]

DESCRIPTION

       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).

OPTIONS

       See lvm for common options.

       --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 cre-
	      ates.

       -l, --extents [+|-]LogicalExtentsNumber[%{VG|LV|PVS|FREE|ORIGIN}]
	      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, as a per-
	      centage 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.

       -L, --size [+|-]LogicalVolumeSize[bBsSkKmMgGtTpPeE]
	      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)

Examples
       "lvresize -L+16M vg1/lv1 /dev/sda:0-1 /dev/sdb:0-1"
       tries to extend a logical volume "vg1/lv1" by 16MB using physical extents /dev/sda:0-1 and /dev/sdb:0-1 for allocation of extents.

SEE ALSO

       lvm(8), lvconvert(8), lvcreate(8), lvreduce(8), lvchange(8)

Sistina Software UK					 LVM TOOLS 2.02.67(2) (2010-06-04)					       LVRESIZE(8)