Hi! 😊
It would be very kind of you to help us with that!
We have pools in our ceph cluster that are set to replicated size 2 min_size 1.
Obviously we want to go to size 3 / min_size 2 but we experience problems with
that.
USED goes to 100% instantly and MAX AVAIL goes to 0. Write operations seemed to
stop.
POOLS:
NAME ID USED %USED
MAX AVAIL OBJECTS
Pool1 24 35791G 35.04 66339G
8927762
Pool2 25 11610G 14.89
66339G 3004740
Pool3 26 17557G 100.00
0 2666972
Before the change it was like this:
NAME ID
USED %USED MAX AVAIL OBJECTS
Pool1 24 35791G 35.04
66339G 8927762
Pool2 25 11610G 14.89
66339G 3004740
Pool3 26 17558G 20.93
66339G 2667013
This was quite surprising to us as we’d expect USED to go to something like 30%.
Going back to 2/1 also gave us back the 20.93% usage instantly.
What’s the matter here?
Thank you and best regards
Stefan
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