[ceph-users] Exit yolo mode by increasing size/min_size does not (really) work

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 ________________________________ BearingPoint GmbH Sitz: Wien Firmenbuchgericht: Handelsgericht Wien Firmenbuchnummer: FN 175524z The information in this email is confidential and may be legally privileged. If you are not the intended recipient of this message, any review, disclosure, copying, distribution, retention, or any action taken or omitted to be taken in reliance on it is prohibited and may be unlawful. If you are not the intended recipient, please reply to or forward a copy of this message to the sender and delete the message, any attachments, and any copies thereof from your system.