On 17-03-08 15:39, Kevin Olbrich wrote:
Hi!
Currently I have a cluster with 6 OSDs (5 hosts, 7TB RAID6 each).
We want to shut down the cluster but it holds some semi-productive VMs
we might or might not need in the future.
To keep them, we would like to shrink our cluster from 6 to 2 OSDs (we
use size 2 and min_size 1).
Should I set the OSDs out one by one or with norefill, norecovery
flags set but all at once?
If last is the case, which flags should be set also?
just set OSDs out and wait for them to rebalace, OSDs will be active and
serve traffic while data will be moving off them. I had a case where
some pgs wouldn't move out, so after everything settles, you may need to
remove OSDs from crush one by one.
Thanks!
Kind regards,
Kevin Olbrich.
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