We are rebuilding servers and before luminous our process was:
1. Reweight the OSD to 0
2. Wait for rebalance to complete
3. Out the osd
4. Crush remove osd
5. Auth del osd
6. Ceph osd rm #
Seems the luminous documentation says that you should:
1. Out the osd
2. Wait for the cluster rebalance to finish
3. Stop the osd
4. Osd purge #
Is reweighting to 0 no longer suggested?
Side note: I tried our existing process and even after reweight, the entire
cluster restarted the balance again after step 4 ( crush remove osd ) of the
old process. I should also note, by reweighting to 0, when I tried to run
"ceph osd out #", it said it was already marked out.
I assume the docs are correct, but just want to make sure since reweighting
had been previously recommended.
Regards,
-Brent
Existing Clusters:
Test: Nautilus 14.2.2 with 3 osd servers, 1 mon/man, 1 gateway, 2 iscsi
gateways ( all virtual on nvme )
US Production(HDD): Nautilus 14.2.2 with 11 osd servers, 3 mons, 4 gateways,
2 iscsi gateways
UK Production(HDD): Nautilus 14.2.2 with 12 osd servers, 3 mons, 4 gateways
US Production(SSD): Nautilus 14.2.2 with 6 osd servers, 3 mons, 3 gateways,
2 iscsi gateways