On 5/28/2019 8:33 AM, Sean McGinnis wrote:
Multiattach support has indeed been enabled for RBD as of the Stein release. Though there are the known caveats that you point out.
I thought there was a pending patch to add some details on this to to the RBD driver configuration reference, but I am not finding anything at the moment.
I don't have all the details on that myself, but hopefully one of the RBD driver maintainers can chime in here with better details.
Note that the devstack-plugin-ceph repo also enabled multiattach testing after it was enabled for the rbd volume driver in cinder [1]. So it should be getting tested in the ceph job as well upstream. [1] https://github.com/openstack/devstack-plugin-ceph/commit/b69c941d5ccafb70240... -- Thanks, Matt