Hello Nova, Cinder developers, I would like to ask you a question concerns a Cinder patch [1]. In this patch, it mentioned that RBD features were incompatible with multi-attach, which disabled multi-attach for RBD. I would like to know which RBD features that are incompatible? In the Bug [2], yao ning also raised this question, and in his envrionment, it proved that they did not find ant problems when enable this feature. So, I also would like to know which features in ceph will make this feature unsafe? [1] https://review.openstack.org/#/c/283695/ [2] https://bugs.launchpad.net/cinder/+bug/1535815 Best wishes and Regards junboli -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.openstack.org/pipermail/openstack-dev/attachments/20180413/c102c075/attachment-0001.html>