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}] [--command-
       profile	 ProfileName]	[-d|--debug]	[-h|-?|--help]	  [-f|--force]
       [-i|--stripes   Stripes	 [-I|--stripesize  StripeSize]]	 {-l|--extents
       [+]LogicalExtentsNumber[%{VG|LV|PVS|FREE|ORIGIN}] | -L|--size  [+]Logi-
       calVolumeSize[bBsSkKmMgGtTpPeE]}	     [-n|--nofsck]	[--noudevsync]
       [-r|--resizefs]	  [--reportformat    {basic|json}]    [--use-policies]
       [-t|--test]	[-v|--verbose]	   LogicalVolumePath	 [PhysicalVol-
       umePath[: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 create
       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 mir-
	      rored.  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 snap-
	      shot) 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  percent-
	      age  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  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)

       -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 creates.

       -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 physi-
       cal 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 UKLVM TOOLS 2.02.166(2)-RHEL7 (2016-11-16)	   LVEXTEND(8)