Provided by: lvm2_2.02.02-1ubuntu1_i386 bug

NAME

       vgcreate - create a volume group

SYNOPSIS

       vgcreate  [--addtag  Tag]  [--alloc  AllocationPolicy] [-A|--autobackup
       {y|n}]      [-d|--debug]      [-h|--help]       [-l|--maxlogicalvolumes
       MaxLogicalVolumes]   [-M|--metadatatypetype]   [-p|--maxphysicalvolumes
       MaxPhysicalVolumes]                            [-s|--physicalextentsize
       PhysicalExtentSize[kKmMgGtT]]  [-t|--test]  [-v|--verbose]  [--version]
       VolumeGroupName PhysicalVolumePath [PhysicalVolumePath...]

DESCRIPTION

       vgcreate creates a new volume group called  VolumeGroupName  using  the
       block  special  device PhysicalVolumePath previously configured for LVM
       with pvcreate(8).

OPTIONS

       See lvm for common options.

       -l, --maxlogicalvolumes MaxLogicalVolumes
              Sets the maximum number  of  logical  volumes  allowed  in  this
              volume  group.   The  setting can be changed with vgchange.  For
              volume groups with  metadata  in  lvm1  format,  the  limit  and
              default  value  is  255.   If the metadata uses lvm2 format, the
              default value is 0 which removes this restriction: there is then
              no limit.

       -p, --maxphysicalvolumes MaxPhysicalVolumes
              Sets  the  maximum number of physical volumes that can belong to
              this volume group.  The setting can be  changed  with  vgchange.
              For  volume  groups  with metadata in lvm1 format, the limit and
              default value is 255.  If the metadata  uses  lvm2  format,  the
              default value is 0 which removes this restriction: there is then
              no limit.  If you have a large number of physical volumes  in  a
              volume  group with metadata in lvm2 format, for tool performance
              reasons, you should consider some use of --metadatacopies  0  as
              described in pvcreate(8).

       -s, --physicalextentsize PhysicalExtentSize[kKmMgGtT]
              Sets the physical extent size on physical volumes of this volume
              group.  A size suffix (k for kilobytes up to t for terabytes) is
              optional,  megabytes  is  the  default  if no suffix is present.
              Values can be from 8 KB to 16 GB in powers of 2.  The default is
              4  MB.   Once this value has been set, it is difficult to change
              it without recreating  the  volume  group  which  would  involve
              backing  up  and  restoring data on any logical volumes.  If the
              volume group metadata uses lvm1 format,  there  is  a  limit  of
              65534  extents  in  each  logical volume, so the default of 4 MB
              leads to a maximum logical volume size of around 256GB.  If  the
              volume  group  metadata  uses  lvm2  format  there  is  no  such
              restriction, although having a large number of extents will slow
              down  the  tools  but  have  no impact on I/O performance to the
              logical volume.  The 2.4 kernel has  a  limitation  of  2TB  per
              block device.

EXAMPLES

       To   create  a  volume  group  named  test_vg  using  physical  volumes
       /dev/hdk1, and /dev/hdl1 with default physical extent size of 4MB:

            vgcreate test_vg /dev/sdk1 /dev/sdl1

SEE ALSO

       lvm(8),   pvdisplay(8),   pvcreate(8),    vgdisplay(8),    vgextend(8),
       vgreduce(8), lvcreate(8), lvdisplay(8), lvextend(8), lvreduce(8)