[cinder] ceph multiattach details?

Bernd Bausch berndbausch at gmail.com
Tue May 28 12:29:27 UTC 2019

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.


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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