ceph-osd man page on Fedora

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CEPH-OSD(8)			     Ceph			   CEPH-OSD(8)

NAME
       ceph-osd - ceph object storage daemon

SYNOPSIS
       ceph-osd -i osdnum [ --osd-data datapath ] [ --osd-journal
       journal ] [ --mkfs ] [ --mkjournal ] [ --mkkey ]

DESCRIPTION
       ceph-osd	 is  the  object  storage daemon for the Ceph distributed file
       system. It is responsible for storing objects on a  local  file	system
       and providing access to them over the network.

       The  datapath  argument	should	be  a directory on a btrfs file system
       where the object data resides. The journal is  optional,	 and  is  only
       useful  performance-wise when it resides on a different disk than data‐
       path with low latency (ideally, an NVRAM device).

OPTIONS
       -f, --foreground
	      Foreground: do not daemonize after startup (run in  foreground).
	      Do not generate a pid file. Useful when run via ceph-run(8).

       -d     Debug mode: like -f, but also send all log output to stderr.

       --osd-data osddata
	      Use object store at osddata.

       --osd-journal journal
	      Journal updates to journal.

       --mkfs Create   an   empty   object  repository.	 Normally  invoked  by
	      mkcephfs(8). This	 also  initializes  the	 journal  (if  one  is
	      defined).

       --mkkey
	      Generate	a new secret key. This is normally used in combination
	      with --mkfs as it is more convenient than generating  a  key  by
	      hand with ceph-authtool(8).

       --mkjournal
	      Create  a	 new  journal file to match an existing object reposi‐
	      tory.  This is useful if the journal device or file is wiped out
	      due to a disk or file system failure.

       --flush-journal
	      Flush  the  journal  to  permanent store. This runs in the fore‐
	      ground so you know when it's completed. This can	be  useful  if
	      you  want to resize the journal or need to otherwise destroy it:
	      this guarantees you won't lose data.

       -c ceph.conf, --conf=ceph.conf
	      Use  ceph.conf  configuration  file  instead  of	 the   default
	      /etc/ceph/ceph.conf for runtime configuration options.

       -m monaddress[:port]
	      Connect	to  specified  monitor	(instead  of  looking  through
	      ceph.conf).

AVAILABILITY
       ceph-osd is part of the Ceph distributed file system. Please  refer  to
       the Ceph wiki at http://ceph.newdream.net/wiki for more information.

SEE ALSO
       ceph(8), ceph-mds(8), ceph-mon(8), ceph-authtool(8)

COPYRIGHT
       2011, New Dream Network

dev			      September 22, 2011		   CEPH-OSD(8)
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