Provided by: ceph-fs-common_10.1.1-0ubuntu1_i386 bug

NAME

       mount.ceph - mount a ceph file system

SYNOPSIS

       mount.ceph monaddr1[,monaddr2,...]:/[subdir] dir [
       -o options ]

DESCRIPTION

       mount.ceph  is  a  simple helper for mounting the Ceph file system on a
       Linux host. It serves to resolve monitor hostname(s) into IP  addresses
       and  read  authentication  keys  from  disk;  the  Linux  kernel client
       component does most of the real work. In fact, it is possible to  mount
       a  non-authenticated  Ceph file system without mount.ceph by specifying
       monitor address(es) by IP:

          mount -t ceph 1.2.3.4:/ mountpoint

       Each monitor address monaddr takes the form host[:port]. If the port is
       not specified, the Ceph default of 6789 is assumed.

       Multiple  monitor  addresses  can  be  separated  by  commas.  Only one
       responsible monitor is needed to successfully mount;  the  client  will
       learn  about all monitors from any responsive monitor. However, it is a
       good idea to specify more than one in case one happens to  be  down  at
       the time of mount.

       A  subdirectory  subdir may be specified if a subset of the file system
       is to be mounted.

       Mount helper application conventions dictate that the first two options
       are  device  to be mounted and destination path. Options must be passed
       only after these fixed arguments.

OPTIONS

       wsize  int, max write size. Default: none (writeback  uses  smaller  of
              wsize and stripe unit)

       rsize  int  (bytes),  max  readahead, multiple of 1024, Default: 524288
              (512*1024)

       osdtimeout
              int (seconds), Default: 60

       osdkeepalivetimeout
              int, Default: 5

       mount_timeout
              int (seconds), Default: 60

       osd_idle_ttl
              int (seconds), Default: 60

       caps_wanted_delay_min
              int, cap release delay, Default: 5

       caps_wanted_delay_max
              int, cap release delay, Default: 60

       cap_release_safety
              int, Default: calculated

       readdir_max_entries
              int, Default: 1024

       readdir_max_bytes
              int, Default: 524288 (512*1024)

       write_congestion_kb
              int (kb), max writeback in flight. scale with available  memory.
              Default: calculated from available memory

       snapdirname
              string, set the name of the hidden snapdir. Default: .snap

       name   RADOS user to authenticate as when using cephx. Default: guest

       secret secret  key  for use with cephx. This option is insecure because
              it exposes the secret on the command line. To  avoid  this,  use
              the secretfile option.

       secretfile
              path to file containing the secret key to use with cephx

       ip     my ip

       noshare
              create  a  new  client  instance, instead of sharing an existing
              instance of a client mounting the same cluster

       dirstat
              funky cat dirname for stats, Default: off

       nodirstat
              no funky cat dirname for stats

       rbytes Report the recursive size of the directory contents for  st_size
              on directories.  Default: on

       norbytes
              Do  not  report the recursive size of the directory contents for
              st_size on directories.

       nocrc  no data crc on writes

       noasyncreaddir
              no dcache readdir

EXAMPLES

       Mount the full file system:

          mount.ceph monhost:/ /mnt/foo

       If there are multiple monitors:

          mount.ceph monhost1,monhost2,monhost3:/ /mnt/foo

       If ceph-mon(8) is running on a non-standard port:

          mount.ceph monhost1:7000,monhost2:7000,monhost3:7000:/ /mnt/foo

       To mount only part of the namespace:

          mount.ceph monhost1:/some/small/thing /mnt/thing

       Assuming  mount.ceph(8)   is   installed   properly,   it   should   be
       automatically invoked by mount(8) like so:

          mount -t ceph monhost:/ /mnt/foo

AVAILABILITY

       mount.ceph   is  part  of  Ceph,  a  massively  scalable,  open-source,
       distributed storage system. Please refer to the Ceph  documentation  at
       http://ceph.com/docs for more information.

SEE ALSO

       ceph-fuse(8), ceph(8)

COPYRIGHT

       2010-2014,  Inktank  Storage,  Inc.  and  contributors.  Licensed under
       Creative Commons BY-SA