Has the command for manually starting and stopping OSDs changed?
The documentation for troubleshooting OSDs
(http://docs.ceph.com/docs/master/rados/troubleshooting/troubleshooting-osd/)
mentions restarting OSDs with the command;
ceph osd start osd.{num}
Yet I find, using Firefly 0.80.5
piers@sol:/etc/ceph$ ceph osd start osd.1
no valid command found; 10 closest matches:
osd tier remove <poolname> <poolname>
osd tier cache-mode <poolname> none|writeback|forward|readonly
osd thrash <int[0-]>
osd tier add <poolname> <poolname> {--force-nonempty}
osd pool stats {<name>}
osd reweight-by-utilization {<int[100-]>}
osd pool set <poolname>
size|min_size|crash_replay_interval|pg_num|pgp_num|crush_ruleset|hashpspool|hit_set_type|hit_set_period|hit_set_count|hit_set_fpp|debug_fake_ec_pool|target_max_bytes|target_max_objects|cache_target_dirty_ratio|cache_target_full_ratio|cache_min_flush_age|cache_min_evict_age|auid
<val> {--yes-i-really-mean-it}
osd pool set-quota <poolname> max_objects|max_bytes <val>
osd pool rename <poolname> <poolname>
osd pool get <poolname>
size|min_size|crash_replay_interval|pg_num|pgp_num|crush_ruleset|hit_set_type|hit_set_period|hit_set_count|hit_set_fpp|auid
Error EINVAL: invalid command
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