Depending on your Linux working style, you can choose to manage your Ceph services either by sysvinit or by the Linux service command. Starting from Ceph Argonaut and Bobtail, you can mange Ceph daemons using the Linux service command:
service ceph [options] [command] [daemons]
The Ceph options include:
The Ceph commands include:
The Ceph daemons include:
- mon
- osd
- mds
- ceph-radosgw
To start your Ceph cluster, execute Ceph with the start command. This command will start all Ceph services that you have deployed for all the hosts mentioned in the ceph.conf file:
# service ceph -a start
To stop your Ceph cluster, execute Ceph with the stop command. This command will stop all Ceph services that you have deployed for all the hosts mentioned in the ceph.conf file:
# service ceph -a stop
To start a specific daemon for your Ceph cluster, execute Ceph with the start command and daemon ID:
# service ceph start osd.0
To check the status of a specific daemon for your Ceph cluster, execute Ceph with the status command and daemon ID:
# service ceph status osd.0
To stop a specific daemon for your Ceph cluster, execute Ceph with the stop command and daemon ID:
# service ceph stop osd.0
The following is the screenshot showing the command outputs: