Active-Active Cinder + RBD driver + Co-ordination

Paul Browne pfb29 at
Wed Feb 5 10:53:32 UTC 2020

Hi list,

I had a quick question about Active-Active in cinder-volume and
cinder-backup stable/stein and RBD driver, if anyone can help.

Using only the Ceph RBD driver for volume backends, is it required to run
A-A cinder services with clustering configuration so that they form a

And, if so, is an external coordinator (redis/etcd/Consul) necessary, again
only using RBD driver?

Best docs I could find on this so far were;

I support more aimed at devs/contributoers than operators, but it's not
100% clear to me on these questions


Paul Browne
Research Computing Platforms
University Information Services
Roger Needham Building
JJ Thompson Avenue
University of Cambridge
United Kingdom
E-Mail: pfb29 at
Tel: 0044-1223-746548
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