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] [-i|--stripes Stripes [-I|--stripesize StripeSize]]
       {-l|--extents [+]LogicalExtentsNumber[%{VG|LV|PVS|FREE}] | -L|--size [+]LogicalVolumeSize[kKmMgGtT]} [-t|--test] [-v|--verbose] LogicalVol-
       umePath [PhysicalVolumePath...]

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.

       -l, --extents [+]LogicalExtentsNumber[%{VG|LV|PVS|FREE}]
	      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, or as a percentage of the remaining free space in the
	      Volume Group with the suffix %FREE.

       -L, --size [+]LogicalVolumeSize[kKmMgGtTpPeE]
	      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)

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.

SEE ALSO

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

Sistina Software UK					 LVM TOOLS 2.02.44-cvs (02-17-09)					       LVEXTEND(8)