lvextend

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,
	      relative	to  the	 existing size of the Logical Volume with the
	      suffix %LV, of the remaining free space for the specified Phys-
	      icalVolume(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
	      volume 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			  LVEXTEND(8)