openstack-ansible-os_cinder/releasenotes/notes/enable-active-active-9af1551759468dc8.yaml
Mohammed Naser c148d77e29 rbd: start using active-active
This patch drops the hacky workaround of using backend_host which
is not recommended by the Cinder team and instead uses active-active
RBD which has been implemented since Rocky.

Closes-Bug: #1837403
Change-Id: I0c8aed4d0608c1f117e1baa1f428875956159ffd
2019-07-22 12:10:38 -04:00

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---
features:
- Cinder is deployed with Active-Active enabled by default if you are using
Ceph as a backend storage.
issues:
- The previous way of using a common backend_host across all deployments
was not recommended by the Cinder team and it will cause duplicate
messages that cause problems in the environment.
upgrade:
- It is possible that you may need to use the cinder-manage command to migrate
volumes to a specific host. In addition, you will have to remove the old
``rbd:volumes`` service which will be stale.