LVRESIZE(8)                                                                                                          LVRESIZE(8)



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 [+]LogicalExtentsNumber[%{VG|LV|PVS|FREE|ORIGIN}] | -L|--size [+]Log-
       icalVolumeSize[bBsSkKmMgGtTpPeE]} [-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 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 lvcon-
       vert(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
              subtracted  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  Vol-
              ume Group with the suffix %FREE, or (for a snapshot) as a percentage of the total space in the Origin Logical Vol-
              ume 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 terabytes, P for petabytes or E for exabytes is optional.  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.

       -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.

       -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 2.02.84(2) (2011-02-09)                                    LVRESIZE(8)