In order to make cinder driver compatible with multiple stores, changes made in Glance of generating the location url and append something unique id to the URL so that it is easier to understand which image is stored in which cinder backend.

And Glance also checks for configured volume types i.e., during initialization of service, all volume types configured in the cinder store(s) will be checked if
they exist in deployment or not, the store with the wrong type will be
disabled. if cinder store is configured using traditional/old way
(i.e. using 'stores' config option) then this validation will not be performed.

So, the required configuration parameters need to be added in THT & puppet-glance & puppet-tripleo to enabled multiple cinder stores for Glance via TripleO 

BP: https://blueprints.launchpad.net/glance-store/+spec/multiple-cinder-backend-support