lvresize(8) - NetBSD Manual Pages

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LVRESIZE(8)                                                        LVRESIZE(8)




NAME

       lvresize - resize a logical volume


SYNOPSIS

       lvresize  [--alloc AllocationPolicy] [-A|--autobackup y|n] [-d|--debug]
       [-h|-?|--help]  [-i|--stripes  Stripes  [-I|--stripesize   StripeSize]]
       {-l|--extents  [+]LogicalExtentsNumber[%{VG|LV|PVS|FREE}]  |  -L|--size
       [+]LogicalVolumeSize[kKmMgGtT]} [-t|--test] [-v|--verbose]  LogicalVol-
       umePath [PhysicalVolumePath...]


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.

       -l, --extents [+|-]LogicalExtentsNumber[%{VG|LV|PVS|FREE}]
              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, or as a percentage of the remaining free
              space in the Volume Group with the suffix %FREE.

       -L, --size [+|-]LogicalVolumeSize[kKmMgGtTpPeE]
              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)


SEE ALSO

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



Sistina Software UK    LVM TOOLS 2.02.44-cvs (02-17-09)            LVRESIZE(8)