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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}]  [--commandprofile  ProfileName]  [-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|--nofsck]  [--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  informa‐
       tion  to  create  snapshots)  is  supported  as well.  But to change the number of copies in a mirrored logical volume use lvcon‐
       vert(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  per‐
              centage  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 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 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 2.02.111(2) (2014-09-01)                                        LVEXTEND(8)