Hi all, I am running ceph for cinder backend of my OpenStack deployment. I am curious if I upgrade ceph (say from an older version of firefly to a newer version of firefly, or from firefly to hammer), what do I need to do with my VMs, which continue to run with librbd of the previous version? I have done one major ceph upgrade before, and ended up having to reboot all VMs, because they seemingly all lost disk access. I wonder if I did something wrong there, or this is the way it is. Any insight on this matter? Thanks! -Simon _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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