lvextend man page on Archlinux

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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]   [-f|--force]   [-i|--stripes    Stripes
       [-I|--stripesize	  StripeSize]]	 {-l|--extents	 [+]LogicalExtentsNum‐
       ber[%{VG|LV|PVS|FREE|ORIGIN}] | -L|--size [+]LogicalVolumeSize[bBsSkKm‐
       MgGtTpPeE]}  [-n|--nofsck]  [--noudevsync] [-r|--resizefs] [--use-poli‐
       cies]  [-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 UK   LVM TOOLS 2.02.106(2) (2014-04-10)	   LVEXTEND(8)
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