How do you replace an OSD?

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I just got my small Ceph cluster running. I run 6 OSDs on the same server to basically replace mdraid.

I have tried to simulate a hard drive (OSD) failure: removed the OSD (out+stop), zapped it, and then
prepared and activated it. It worked, but I ended up with one extra OSD (and the old one still showing in the ceph -w output).
I guess this is not how I am supposed to do it?

Documentation recommends manually editing the configuration, however, there are no osd entries in my /etc/ceph/ceph.conf

So what would be the best way to replace a failed OSD?

Dmitry

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