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ceph
Langue: en
Version: 364193 (ubuntu - 25/10/10)
Section: 8 (Commandes administrateur)
Sommaire
NAME
ceph - ceph file system control utilitySYNOPSIS
ceph [ -m monaddr ] [ -w | command ... ]DESCRIPTION
ceph is a control utility for communicating with the monitor cluster of a running Ceph distributed file system.There are three basic modes of operation.
INTERACTIVE MODE
To start in interactive mode, no arguments are necessary. Control-d or 'quit' will exit.WATCH MODE
To watch cluster state changes in real time, starting in -w (watch) mode will print updates to stdout as they occur. For example, to keep an eye on cluster state,- ceph -C ceph.conf -w
COMMAND LINE MODE
Finally, to send a single instruction to the monitor cluster (and wait for a response), the command can be specified on the command line.OPTIONS
- -i infile
- will specify an input file to be passed along as a payload with the command to the monitor cluster. This is only used for specific monitor commands.
- -o outfile
- will write any payload returned by the monitor cluster with its reply to outfile. Only specific monitor commands (e.g. osd getmap) return a payload.
- -c ceph.conf, --conf=ceph.conf
- Use ceph.conf configuration file instead of the default /etc/ceph/ceph.conf to determine monitor addresses during startup.
- -m monaddress[:port]
- Connect to specified monitor (instead of looking through ceph.conf).
EXAMPLES
To grab a copy of the current OSD map:- ceph -m 1.2.3.4:6789 osd getmap -o osdmap
To get a dump of placement group (PG) state:
- ceph pg dump -o pg.txt
MONITOR COMMANDS
A more complete summary of commands understood by the monitor cluster can be found in the wiki, at- http://ceph.newdream.net/wiki/Monitor_commands
AVAILABILITY
ceph 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), mkcephfs(8)Contenus ©2006-2024 Benjamin Poulain
Design ©2006-2024 Maxime Vantorre