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

NAME

       lvresize - resize a logical volume

SYNOPSIS

       lvresize  [--alloc  AllocationPolicy]  [--noudevsync]  [-i|--stripes  Stripes  [-I|--stripesize StripeSize]] {[-l|--extents [+|-]LogicalEx-
       tentsNumber[%{VG|LV|PVS|FREE|ORIGIN}]  |  [-L|--size   [+|-]LogicalVolumeSize[bBsSkKmMgGtTpPeE]}   [--poolmetadatasize	[+]MetadataVolume-
       Size[bBsSkKmMgG] [-f|--force] [-n|--nofsck] [-r|--resizefs] LogicalVolume{Name|Path} [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(8) for common options.

       -f, --force
	      Force resize without prompting even when it may cause data loss.

       -n, --nofsck
	      Do not perform fsck before resizing filesystem when filesystem requires it. You may need to use --force to proceed with this option.

       -r, --resizefs
	      Resize underlying filesystem together with the logical volume using fsadm(8).

       -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 total number of physical extents
	      affected will be greater than this if, for example, the volume is mirrored.  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  percentage  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.  The resulting value is rounded downward for the subtraction otherwise it is rounded upward.
	      N.B.  In	a  future release, when expressed as a percentage with PVS, VG or FREE, the number will be treated as an approximate total
	      number of physical extents to be allocated or freed (including extents used by any mirrors, for example).  The  code  may  currently
	      allocate or remove more space than you might otherwise expect.

       -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 or subtracted from the actual size of the log-
	      ical volume and rounded to the full extent size 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.

       --poolmetadatasize [+]MetadataVolumeSize[bBsSkKmMgG]
	      Change or set the thin pool metadata logical volume size.  With the + sign the value is added to the actual  size  of  the  metadata
	      volume  and  rounded  to the full extent size and without it, the value is taken as an absolute one.  Maximal size is 16GiB. Default
	      unit is megabytes.

       -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) for metadata in LVM1 format.	For metadata in LVM2 format, the stripe size may be a larger power
	      of 2 but must not exceed the physical extent size.

       --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.

EXAMPLES

       Extend a logical volume vg1/lv1 by 16MB using physical extents /dev/sda:0-1 and /dev/sdb:0-1 for allocation of extents:

       lvresize -L+16M vg1/lv1 /dev/sda:0-1 /dev/sdb:0-1

SEE ALSO

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

Sistina Software UK				     LVM TOOLS 2.02.105(2)-RHEL7 (2014-03-26)					       LVRESIZE(8)