Hi John, Michael, I would like to help for the Cinder documentation. I have noticed that there is no open bug for the multi-backend documentation. Anne allowed me to open a bug ( https://lists.launchpad.net/openstack/msg21938.html ). Is it OK for you if I assign this bug to me or do you have any other plans for the writing of this documentation? If it's OK for you, I will write this documentation with the help of: https://wiki.openstack.org/wiki/Cinder-multi-backend Thanks a lot, Jérôme