It's interesting, if dated piece of enterprise kit.... 
Now .. the major problem will be backing it up. 
All my current backup is based around zfs snapshots, and of course this proprietary thing doesn't use or expose anything like zfs. I'm thinking I might buy another server, run freebsd on it, and mount the SAN on that over iscsi. Then use zfs on that too export volumes over either NFS or iscsi again to the compute layer.