Hi all, I'm in the process of decommissioning some OSDs and thought I'd previously migrated all data off them by marking them "out" (which did trigger a fair amount of remapping as expected). Looking at the pgmap ('ceph pg dump') confirmed that none of the "out" OSDs was hosting any more PGs (columns 'up' and 'acting'). I thought my next prudent step before taking the OSDs down and removing them from the crushmap was to reweight them to 0. To my surprise this caused a flurry of remapping/backfilling. Is this expected and if so, what am I missing? This is an old Firefly cluster (purpose of taking out the OSDs is to repurpose them into a Luminous cluster we're building...). Assuming this has no useful function, would I be good to take them out using 'osd crush remove' then 'osd rm' without re-weighting them to 0 first? Your insight is much appreciated! Cheers Christian _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com