Thanks for clarifying this Erik. Let me point out then that the release
notes [1] are worded rather unequivocally, and what you are saying
contradicts them:
RBD driver has added multiattach support. It should be noted that
replication and multiattach are mutually exclusive, so a single RBD
volume can only be configured to support one of these features at a
time. Additionally, RBD image features are not preserved which
prevents a volume being retyped from multiattach to another type.
This limitation is temporary and will be addressed soon.
Bernd.
On 5/28/2019 11:30 AM, Erik McCormick wrote:
> There isn't really a Ceph multi-attach feature using Cinder
[1] https://docs.openstack.org/releasenotes/cinder/stein.html
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