Hello, I have problem that sometimes I can't unmap rbd device, I get "sysfs write failed rbd: unmap failed: (16) Device or resource busy", there is no open files and "holders" directory is empty. I saw on the mailling list that you can "force" unmapping the device, but I cant find how does it work. "man rbd" only mentions "force" as "KERNEL RBD (KRBD) OPTION", but "modinfo rbd" doesn't show this option. Did I miss something? As client where rbd is mapped I use Debian stretch with kernel 4.9, ceph cluster is on version 11.2. Thanks, Stan _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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