We currently have something called USS (Universal Storage Solution) this is a standard which is built by Flexiant limited to address the
need for the cloud storage. This means the we are able to support any POSIX complaint and reasonable NAS and SAN. We also support iSCSI and since version 3.06 of FCO we support OCFSv2.
In terms of the file system for USS we support below file system:
However if you are running NFS storage we do recommend that you use NFSv4.
For full information on the storage platforms we support please see the full article at http://docs.flexiant.com/display/DOCS/Storage