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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]
       LogicalVolumePath [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
              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 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
       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)