Hi Ilya, thanks for the info, it did help. I agree, its the orchestration layer's responsibility to handle things right. I have a case open already with support and it looks like there is indeed a bug on that side. I was mainly after a way that ceph librbd clients could offer a safety net in case such bugs occur. Its a bit like the four-eyes principle, having an orchestration layer do things right is good, but having a second instance confirming the same thing is much better. A bug in one layer will not cause a catastrophe, because the second layer catches it. I'm not sure if the rbd lock capabilities are sufficiently powerful to provide a command-line interface to that. The flag RBD_LOCK_MODE_EXCLUSIVE seems the only way and if qemu is not using it, there seems not a lot one can do in scripts. Thanks for your help and best regards, ================= Frank Schilder AIT Risø Campus Bygning 109, rum S14 _______________________________________________ ceph-users mailing list -- ceph-users@xxxxxxx To unsubscribe send an email to ceph-users-leave@xxxxxxx
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