A quick follow up question: Am 29.09.2016 um 13:34 schrieb Sascha Vogt: >> Can you check/verify that the deleted objects are actually gone on the >> backing pool? How do I check that? Aka how to find out on which OSD a particular object in the cache pool ends up in the backing pool? Ie. I have a 0-byte file in the cache pool: ./current/11.26_head/DIR_6/DIR_2/DIR_8/DIR_6/DIR_0/rbd\udata.3abcbb93a5057a9.0000000000004225__head_94406826__b I searched for the prefix in the backing pool via > rados -p ephemeral-vms ls | grep data.3abcbb93a5057a9 and nothing was found, so I guess the whole RBD image has been deleted from the backing pool already (or has never hit the backing pool in the first place) Greetings -Sascha- _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com