Provided by: ceph-fs-common_0.41-1ubuntu2_amd64
mount.ceph - mount a ceph file system
mount.ceph monaddr1[,monaddr2,...]:/[subdir] dir [ -o options ]
mount.ceph is a simple helper for mounting the Ceph file system on a Linux host. The only real purpose it serves is to resolve monitor hostname(s) into IP addresses; the Linux kernel client component does most of the real work. In fact, it is possible to mount a Ceph file system without mount.ceph by specifying monitor address(es) by IP: mount -t ceph 18.104.22.168:/ 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.
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 string, used with cephx, Default: guest secret string, used 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
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
mount.ceph is part of the Ceph distributed file system. Please refer to the Ceph wiki at http://ceph.newdream.net/wiki for more information.
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