Provided by: ocfs2-tools_1.1.5-0ubuntu5_i386 bug

NAME

       mkfs.ocfs2 - Creates an OCFS2 file system.

SYNOPSIS

       mkfs.ocfs2  [ -b block-size ] [ -C cluster-size ] [ -L volume-label ] [
       -N number-of-nodes ] [ -J journal-options ] [ -F ] [ -q ] [ -v ] [ -V ]
       device [ blocks-count ]

DESCRIPTION

       mkfs.ocfs2  is used to create an OCFS2 file system on a device, usually
       a partition on a shared disk. In order to prevent data loss, mkfs.ocfs2
       will  not  format an existing OCFS2 volume if that volume is mounted on
       any node in the cluster. This tool requires the O2CB cluster service to
       be up.

OPTIONS

       -b block-size
              Valid  block size values are 512, 1K, 2K and 4K bytes per block.
              If omitted, a value will be hueristically determined by the file
              system  size.   A  block size of 512 bytes is never recommended.
              Choose 1K, 2K or 4K.

       -C cluster-size
              Valid cluster size values are 4K, 8K, 16K, 32K, 64K, 128K, 256K,
              512K   and  1M.  If  omitted,  a  value  will  be  hueristically
              determined by the file system  size.  For  volumes  expected  to
              store  large  files, like database files, a cluster-size of 128K
              or more is recommended. For others, 16K-64K.

       blocks-count
              Usually mkfs.ocfs2 automatically  determines  the  size  of  the
              given  device  and  creates  a  file system that uses all of the
              available space on the device.  This optional argument specifies
              that  the  file  system  should only consume the given number of
              file system blocks (see -b) on the device.

       -L volume-label
              Set the volume label for the file system.  This  is  useful  for
              mounting-by-label. Limit the label length to under 64 bytes.

       -N number-of-node-slots
              Valid  number  ranges  from  1 to 255. This number specifies the
              maximum  number  of  nodes  that  can  concurrently  mount   the
              partition. If omitted, the number defaults to 4. This number can
              be later increased using tunefs.ocfs2.

       -J journal-options
              Create the journal using options specified on the  command-line.
              Journal  options  are  comma separated, and may take an argument
              using the equals (’=’) sign. The following journal  options  are
              supported:

                   size=journal-size
                          Create  a journal of size journal-size. Minimum size
                          is  4M.   If  omitted,  a  value  is   heuristically
                          determined by the file system size.

       -F     For existing OCFS2 volumes, mkfs.ocfs2 ensures the volume is not
              mounted on any node in the cluster before formatting.  For  that
              to  work,  mkfs.ocfs2  expects  the  O2CB  cluster service to be
              running.  Specify this option to disable this check.

       -q     Quiet mode.

       -v     Verbose mode.

       -V     Print version and exit.

SEE ALSO

       debugfs.ocfs2(8)   fsck.ocfs2(8)    tunefs.ocfs2(8)    mounted.ocfs2(8)
       ocfs2console(8) ocfs2cdsl(8)

AUTHORS

       Oracle Corporation

COPYRIGHT

       Copyright © 2004, 2005 Oracle. All rights reserved.