xenial (8) lvextend.8.gz

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 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 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 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)