The counts of provisioned, up, and down OSDs is available via the osd stat subcommand as shown in the following:

root@ceph-client0:~# ceph osd stat
osdmap e7785: 6 osds: 6 up, 6 in
flags sortbitwise,require_jewel_osds

Note that the above information is exactly the same as the information present in the Ceph health status we described earlier in this chapter. The output of Ceph status is useful when watching problems visually, but if you want to isolate only the basic OSD stats, osd stat may be convenient.