I'm working on http://tracker.ceph.com/issues/8310 , basically by bringing osds down and up I've come to a state where on-disk I have pgs, osds seem to scan the directories on boot, but the crush map isn't mapping the objects properly. In addition to that ticket, I've got a decompile of my crushmap at https://github.com/jeffb-bt/nova_confs/blob/master/crushmap.txt and a raw dump (in case anything is missing) at https://github.com/jeffb-bt/nova_confs/blob/master/crushmap # ceph osd tree # id weight type name up/down reweight -1 5 root default -2 1 host compute1 0 1 osd.0 up 0.24 -3 1 host compute2 1 1 osd.1 up 0.26 -4 3 host compute3 3 1 osd.3 up 0.02325 2 1 osd.2 up 0.01993 5 1 osd.5 up 0.15 Does anyone see where the error is in the crushmap that I can fix it? I don't have very many pgs/pools, if I need to add extra mapping to the crushmap to get my pgs visible I will do so, I just don't have any examples of how. Thanks for any help, Jeff