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LVRESIZE(8)							   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 [+|-]LogicalVolume‐
       Size[bBsSkKmMgGtTpPeE]} [-f|--force] [-n|--nofsck] [-r|--resizefs] Log‐
       icalVolume{Name|Path} [PhysicalVolumePath[:PE[-PE]]...]

DESCRIPTION
       lvresize allows you to resize a logical volume.	Be careful when reduc‐
       ing 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 informa‐
       tion 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 sub‐
	      tracted 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  percentage  of  the  remaining  free
	      space in the Volume Group with the suffix %FREE, or (for a snap‐
	      shot) as a percentage of the total space in the  Origin  Logical
	      Volume  with the suffix %ORIGIN.	The resulting value is rounded
	      downward for the substraction otherwise it is rounded upward.

       -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 ter‐
	      abytes, 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 logical 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 Vol‐
	      ume.  Defaults to whatever the last segment of the Logical  Vol‐
	      ume 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).

       --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 creates.

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 2.02.98(2) (2012-10-15)	   LVRESIZE(8)
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