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.TH "CEPH-MDS" "8" "September 22, 2011" "dev" "Ceph"
.SH NAME
ceph-mds \- ceph metadata server daemon
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.SH SYNOPSIS
.nf
\fBceph\-mds\fP \-i \fIname\fP [[ \-\-hot\-standby [\fIrank\fP] ]|[\-\-journal_check \fIrank\fP]]
.fi
.sp
.SH DESCRIPTION
.sp
\fBceph\-mds\fP is the metadata server daemon for the Ceph distributed file
system. One or more instances of ceph\-mds collectively manage the file
system namespace, coordinating access to the shared OSD cluster.
.sp
Each ceph\-mds daemon instance should have a unique name. The name is used
to identify daemon instances in the ceph.conf.
.sp
Once the daemon has started, the monitor cluster will normally assign
it a logical rank, or put it in a standby pool to take over for
another daemon that crashes. Some of the specified options can cause
other behaviors.
.sp
If you specify hot\-standby or journal\-check, you must either specify
the rank on the command line, or specify one of the
mds_standby_for_[rank|name] parameters in the config. The command
line specification overrides the config, and specifying the rank
overrides specifying the name.
.SH OPTIONS
.INDENT 0.0
.TP
.B \-f, \-\-foreground
Foreground: do not daemonize after startup (run in foreground). Do
not generate a pid file. Useful when run via \fBceph\-run\fP(8).
.UNINDENT
.INDENT 0.0
.TP
.B \-d
Debug mode: like \fB\-f\fP, but also send all log output to stderr.
.UNINDENT
.INDENT 0.0
.TP
.B \-c ceph.conf, \-\-conf=ceph.conf
Use \fIceph.conf\fP configuration file instead of the default
\fB/etc/ceph/ceph.conf\fP to determine monitor addresses during
startup.
.UNINDENT
.INDENT 0.0
.TP
.B \-m monaddress[:port]
Connect to specified monitor (instead of looking through
\fBceph.conf\fP).
.UNINDENT
.SH AVAILABILITY
.sp
\fBceph\-mon\fP is part of the Ceph distributed file system. Please refer to the Ceph wiki at
\fI\%http://ceph.newdream.net/wiki\fP for more information.
.SH SEE ALSO
.sp
\fBceph\fP(8),
\fBceph\-mon\fP(8),
\fBceph\-osd\fP(8)
.SH COPYRIGHT
2011, New Dream Network
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