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Learning Ceph - Second Edition by Karan Singh, Vaibhav Bhembre, Anthony D'Atri

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Cluster status

Cluster status checks are among the most frequent tasks of any Ceph administrator; indeed like driving a manual transmission car they quickly become reflexive. These dovetail with the health check we discussed above. The overall status of the cluster can be checked by using the ceph status subcommand or the -s switch.

root@ceph-client0:~# ceph statuscluster e6d4e4ab-f59f-470d-bb76-511deebc8de3health HEALTH_OKmonmap e1: 1 mons at {ceph-mon0=192.168.42.10:6789/0}election epoch 5, quorum 0 ceph-mon0fsmap e15527: 1/1/1 up {0=ceph-mds0=up:active}osdmap e6279: 6 osds: 6 up, 6 inflags sortbitwise,require_jewel_osdspgmap v16658: 128 pgs, 9 pools, 3656 bytes data, 191 objects1962 MB used, 63371 MB / 65333 MB avail128 active+clean

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