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] [-f|--force] [-i|--stripes Stripes [-I|--stripesize
       StripeSize]] {-l|--extents [+]LogicalExtentsNumber[%{VG|LV|PVS|FREE|ORIGIN}] | -L|--size [+]LogicalVolumeSize[bBsSkKmMgGtTpPeE]} [-n|--nof-
       sck] [--noudevsync] [-r|--resizefs] [--use-policies] [-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(8) for common options.

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

       -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 total number of physical extents allocated will be
	      greater than this, for example, if the volume is mirrored.  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.  N.B. In a future release, when expressed as a percentage with PVS, VG or FREE, the  number  will
	      be  treated  as  an  approximate upper limit for the total number of physical extents to be allocated (including extents used by any
	      mirrors, for example).  The code may currently allocate more space than you might otherwise expect.

       -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)

       -n, --nofsck
	      Do not perform fsck before extending filesystem when filesystem requires it. You may need  to  use  --force  to  proceed	with  this
	      option.

       --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.

       -r, --resizefs
	      Resize underlying filesystem together with the logical volume using fsadm(8).

       --use-policies
	      Resizes the logical volume according to configured policy. See lvm.conf(5) for some details.

Examples
       Extends	the size of the logical volume "vg01/lvol10" by 54MiB 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 -L +54 /dev/vg01/lvol10 /dev/sdk3

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

       lvextend /dev/vg01/lvol01 /dev/sdk3

       Extends a logical volume "vg01/lvol01" by 16MiB using physical extents /dev/sda:8-9 and /dev/sdb:8-9 for allocation of extents:

       lvextend -L+16M vg01/lvol01 /dev/sda:8-9 /dev/sdb:8-9

SEE ALSO

       fsadm(8), lvm(8), lvm.conf(5), lvcreate(8), lvconvert(8), lvreduce(8), lvresize(8), lvchange(8)

Sistina Software UK				     LVM TOOLS 2.02.105(2)-RHEL7 (2014-03-26)					       LVEXTEND(8)