[Openstack-operators] Gluster storage for Cinder: migrating from Gluster to NFS driver

Massimo Sgaravatto massimo.sgaravatto at gmail.com
Sat Jul 1 10:56:56 UTC 2017


I have a iscsi storage system which provides Cinder block storage to an
OpenStack cloud (running Mitaka) using the gluster cinder driver.

We are now preparing the update Mitaka --> Newton --> Ocata

Since the cinder gluster driver is not supported anymore in Ocata, the idea
is to expose that storage using the Cinder NFS driver, since  I can export
the same gluster volumes using both the gluster and NFS protocols (and
therefore on the storage side no operations would be needed).

The question is how to migrate the existing volumes, created using the
Gluster driver.

Do I have to create new volumes (using the NFS driver), copy on these new
volumes the content of the "gluster" volumes, or are there smarter options ?

Thanks., Massimo
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