Hi, May I know if it's possible to replace an OSD drive without removing / re-adding back the OSD? I want to avoid the time and the excessive I/O load which will happen during the recovery process at the time when:
- the OSD is removed; and - the OSD is being put back into the cluster. I read David Zafman's comment on this thread, that we can set "noout", take OSD "down", replace the drive, and then bring the OSD back "up" and unset "noout". http://www.spinics.net/lists/ceph-users/msg05959.html May I know if it's possible to do this? - ceph osd set noout - sudo stop ceph-osd id=12 - Replace the drive, and once done: - sudo start ceph-osd id=12 - ceph osd unset noout The cluster was built using ceph-deploy, can we just replace a drive like that without zapping and preparing the disk using ceph-deploy? Looking forward to your reply, thank you. Cheers.
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