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

NAME

       lvextend - extend the size of a logical volume

SYNOPSIS

       lvextend [--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]}
       [-f|--force] [-n|--nofsck] [-r|--resizefs] [-t|--test] [-v|--verbose] LogicalVolumePath [PhysicalVolumePath[:PE[-PE]]...]

DESCRIPTION

       lvextend allows you to extend the size of a logical volume.  Extension of snapshot logical volumes (see lvcreate(8) for information to cre-
       ate 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}]
	      Extend or set the logical volume size in units of logical extents.  With the + sign the value is added to 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,  of  the
	      remaining  free  space  for the specified PhysicalVolume(s) 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 upward.

       -L, --size [+]LogicalVolumeSize[bBsSkKmMgGtTpPeE]
	      Extend  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 + sign the value is added to the actual size of the logical volume and  with-
	      out it, the value is taken as an absolute one.

       -i, --stripes Stripes
	      Gives  the number of stripes for the extension.  Not applicable to LVs using the original metadata LVM format, which must use a sin-
	      gle value throughout.

       -I, --stripesize StripeSize
	      Gives the number of kilobytes for the granularity of the stripes.  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)

       -f, --force
	      Proceed with size extension without prompting.

       -n, --nofsck
	      Do  not  perform	fsck  before  extending  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).

Examples
       "lvextend -L +54 /dev/vg01/lvol10 /dev/sdk3" tries to extend the size of that logical volume by 54MB on physical volume /dev/sdk3.  This is
       only possible if /dev/sdk3 is a member of volume group vg01 and there are enough free physical extents in it.

       "lvextend  /dev/vg01/lvol01  /dev/sdk3"	tries  to  extend  the	size of that logical volume by the amount of free space on physical volume
       /dev/sdk3.  This is equivalent to specifying "-l +100%PVS" on the command line.

       "lvextend -L+16M vg01/lvol01 /dev/sda:8-9 /dev/sdb:8-9"
       tries to extend a logical volume "vg01/lvol01" by 16MB using physical extents /dev/sda:8-9 and /dev/sdb:8-9 for allocation of extents.

SEE ALSO

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

Sistina Software UK					 LVM TOOLS 2.02.95(2) (2012-03-06)					       LVEXTEND(8)