NAME
       lvresize - resize a logical volume

SYNOPSIS
       lvresize  [--alloc AllocationPolicy] [-A|--autobackup y|n] [-d|--debug]
       [-h|-?|--help] [--noudevsync]  [-i|--stripes  Stripes  [-I|--stripesize
       StripeSize]]             {-l|--extents            [+]LogicalExtentsNum-
       ber[%{VG|LV|PVS|FREE|ORIGIN}] | -L|--size [+]LogicalVolumeSize[bBsSkKm-
       MgGtTpPeE]}   [-f|--force]  [-n|--nofsck]  [-r|--resizefs]  [-t|--test]
       [-v|--verbose] LogicalVolumePath [PhysicalVolumePath[:PE[-PE]]...]

DESCRIPTION
       lvresize allows you to resize a logical volume.  Be careful when reduc-
       ing  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  informa-
       tion 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 for common options.

       -f, --force
              Force resize without prompting even when it may cause data loss.

       -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  sub-
              tracted  from  the actual size of the logical volume and without
              it, the value is taken as an absolute one.  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 snap-
              shot)  as  a percentage of the total space in the Origin Logical
              Volume with the suffix %ORIGIN.

       -n, --nofsck
              Do not perform fsck before resizing 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).

       -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  ter-
              abytes, P for petabytes or E for exabytes is optional.  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.

       -i, --stripes Stripes
              Gives the number of stripes to use when extending a Logical Vol-
              ume.   Defaults to whatever the last segment of the Logical Vol-
              ume uses.  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.  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)

Examples
       "lvresize -L+16M vg1/lv1 /dev/sda:0-1 /dev/sdb:0-1"
       tries to extend a logical  volume  "vg1/lv1"  by  16MB  using  physical
       extents /dev/sda:0-1 and /dev/sdb:0-1 for allocation of extents.

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

Sistina Software UK LVM TOOLS 2.02.88(2)-RHEL5 (2014-04-04)        LVRESIZE(8)