.\" Man page generated from reStructuredText. . .TH "CEPH-MON" "8" "January 12, 2014" "dev" "Ceph" .SH NAME ceph-mon \- ceph monitor daemon . .nr rst2man-indent-level 0 . .de1 rstReportMargin \\$1 \\n[an-margin] level \\n[rst2man-indent-level] level margin: \\n[rst2man-indent\\n[rst2man-indent-level]] - \\n[rst2man-indent0] \\n[rst2man-indent1] \\n[rst2man-indent2] .. .de1 INDENT .\" .rstReportMargin pre: . RS \\$1 . nr rst2man-indent\\n[rst2man-indent-level] \\n[an-margin] . nr rst2man-indent-level +1 .\" .rstReportMargin post: .. .de UNINDENT . RE .\" indent \\n[an-margin] .\" old: \\n[rst2man-indent\\n[rst2man-indent-level]] .nr rst2man-indent-level -1 .\" new: \\n[rst2man-indent\\n[rst2man-indent-level]] .in \\n[rst2man-indent\\n[rst2man-indent-level]]u .. . .nr rst2man-indent-level 0 . .de1 rstReportMargin \\$1 \\n[an-margin] level \\n[rst2man-indent-level] level margin: \\n[rst2man-indent\\n[rst2man-indent-level]] - \\n[rst2man-indent0] \\n[rst2man-indent1] \\n[rst2man-indent2] .. .de1 INDENT .\" .rstReportMargin pre: . RS \\$1 . nr rst2man-indent\\n[rst2man-indent-level] \\n[an-margin] . nr rst2man-indent-level +1 .\" .rstReportMargin post: .. .de UNINDENT . RE .\" indent \\n[an-margin] .\" old: \\n[rst2man-indent\\n[rst2man-indent-level]] .nr rst2man-indent-level -1 .\" new: \\n[rst2man-indent\\n[rst2man-indent-level]] .in \\n[rst2man-indent\\n[rst2man-indent-level]]u .. .SH SYNOPSIS .nf \fBceph\-mon\fP \-i \fImonid\fP [ \-\-mon\-data \fImondatapath\fP ] .fi .sp .SH DESCRIPTION .sp \fBceph\-mon\fP is the cluster monitor daemon for the Ceph distributed file system. One or more instances of \fBceph\-mon\fP form a Paxos part\-time parliament cluster that provides extremely reliable and durable storage of cluster membership, configuration, and state. .sp The \fImondatapath\fP refers to a directory on a local file system storing monitor data. It is normally specified via the \fBmon data\fP option in the configuration file. .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 \-\-mkfs Initialize the \fBmon data\fP directory with seed information to form and initial ceph file system or to join an existing monitor cluster. Three pieces of information must be provided: .INDENT 7.0 .IP \(bu 2 The cluster fsid. This can come from a monmap (\fB\-\-monmap \fP) or explicitly via \fB\-\-fsid \fP\&. .IP \(bu 2 A list of monitors and their addresses. This list of monitors can come from a monmap (\fB\-\-monmap \fP), the \fBmon host\fP configuration value (in \fIceph.conf\fP or via \fB\-m host1,host2,...\fP), or \fBmon addr\fP lines in \fIceph.conf\fP\&. If this monitor is to be part of the initial monitor quorum for a new Ceph cluster, then it must be included in the initial list, matching either the name or address of a monitor in the list. When matching by address, either the \fBpublic addr\fP or \fBpublic subnet\fP options may be used. .IP \(bu 2 The monitor secret key \fBmon.\fP\&. This must be included in the keyring provided via \fB\-\-keyring \fP\&. .UNINDENT .UNINDENT .INDENT 0.0 .TP .B \-\-keyring Specify a keyring for use with \fB\-\-mkfs\fP\&. .UNINDENT .SH AVAILABILITY .sp \fBceph\-mon\fP is part of Ceph, a massively scalable, open-source, distributed storage system. Please refer to the Ceph documentation at \fI\%http://ceph.com/docs\fP for more information. .SH SEE ALSO .sp \fBceph\fP(8), \fBceph\-mds\fP(8), \fBceph\-osd\fP(8) .SH COPYRIGHT 2010-2014, Inktank Storage, Inc. and contributors. Licensed under Creative Commons BY-SA .\" Generated by docutils manpage writer. .