I have an OSD that is throwing sense errors – It’s at it’s end of life and needs to be replaced.

The server is in the datacentre and I won’t get there for a few weeks so I’ve stopped the service (systemctl stop ceph-osd@208) and let the cluster rebalance, all is well.

My thinking is that if for some reason the host that OSD208 resides within was to reboot, that OSD would start and become part of the cluster again.

So I’d like to prevent this OSD from ever starting again without physically being able to remove it from the server.

I was thinking that deleting it’s key from the auth list might work. So a ceph osd purge 208

Then when the service tries to start it’ll fail with an auth error.

Any other suggestions?

Cheers,

Cory