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LVEXTEND(8)							   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	create
       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, rel‐
	      ative to the existing size of the Logical Volume with the suffix
	      %LV, of the remaining free space for the specified  PhysicalVol‐
	      ume(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 ter‐
	      abytes, P for petabytes or E for exabytes is optional.  With the
	      + sign the value is added to the actual size of the logical vol‐
	      ume and without 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
	      single 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 com‐
       mand 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)

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