Provided by: lvm2_2.02.133-1ubuntu10_amd64 bug

NAME

       lvresize — resize a logical volume

SYNOPSIS

       lvresize  [--alloc  AllocationPolicy]  [--noudevsync] [--commandprofile
       ProfileName]  [-i|--stripes   Stripes   [-I|--stripesize   StripeSize]]
       {[-l|--extents   [+|-]LogicalExtentsNumber[%{VG|LV|PVS|FREE|ORIGIN}]  |
       [-L|--size                    [+|-]LogicalVolumeSize[bBsSkKmMgGtTpPeE]}
       [--poolmetadatasize    [+]MetadataVolumeSize[bBsSkKmMgG]   [-f|--force]
       [-n|--nofsck]         [-r|--resizefs]          LogicalVolume{Name|Path}
       [PhysicalVolumePath[:PE[-PE]]...]

DESCRIPTION

       lvresize  allows  you  to  resize  a  logical  volume.  Be careful when
       reducing a logical volume's size, because data in the reduced  part  is
       lost!!!   You should therefore ensure that any filesystem on the volume
       is shrunk first so that the extents that are to be removed are  not  in
       use.    Resizing   snapshot   logical   volumes  (see  lvcreate(8)  for
       information about creating 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
              Force resize without prompting even when it may cause data loss.

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

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

       -l, --extents [+|-]LogicalExtentsNumber[%{VG|LV|PVS|FREE|ORIGIN}]
              Change  or  set  the  logical  volume  size  in units of logical
              extents.  With the +  or  -  sign  the  value  is  added  to  or
              subtracted  from  the  actual  size  of  the  logical volume and
              without it, the value is taken as an absolute  one.   The  total
              number  of  physical  extents affected will be greater than this
              if, for example, 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,  as a percentage of the
              remaining free space of the PhysicalVolumes on the command  line
              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  downward  for  the  subtraction otherwise it 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 total number of physical extents to be  allocated
              or  freed  (including extents used by any mirrors, for example).
              The code may currently allocate or remove more  space  than  you
              might otherwise expect.

       -L, --size [+|-]LogicalVolumeSize[bBsSkKmMgGtTpPeE]
              Change  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 + or - sign the value is added or subtracted from the actual
              size  of  the logical volume and rounded to the full extent size
              and without it, the value is taken as an absolute one.

       -i, --stripes Stripes
              Gives the number of stripes to  use  when  extending  a  Logical
              Volume.   Defaults  to  whatever the last segment of the Logical
              Volume uses.  Not applicable to LVs using the original  metadata
              LVM format, which must use a single value throughout.

       --poolmetadatasize [+]MetadataVolumeSize[bBsSkKmMgG]
              Change  or set the thin pool metadata logical volume size.  With
              the + sign the value is added to the actual size of the metadata
              volume  and  rounded to the full extent size and without it, the
              value is taken as an  absolute  one.   Maximal  size  is  16GiB.
              Default unit is megabytes.

       -I, --stripesize StripeSize
              Gives  the  number  of  kilobytes  for  the  granularity  of the
              stripes.  Defaults to whatever the last segment of  the  Logical
              Volume  uses.  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) for metadata in LVM1 format.
              For  metadata  in  LVM2  format, the stripe size may be a larger
              power of 2 but must not exceed the physical extent size.

       --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.

EXAMPLES

       Extend  a  logical  volume  vg1/lv1  by  16MB  using  physical  extents
       /dev/sda:0-1 and /dev/sdb:0-1 for allocation of extents:

       lvresize -L+16M vg1/lv1 /dev/sda:0-1 /dev/sdb:0-1

SEE ALSO

       fsadm(8), lvm(8), lvconvert(8), lvcreate(8), lvreduce(8), lvchange(8)