To get closer to our target architecture we need a fast, highly available and scalable SAN storage.
And therefore we bought a EMC DMX 2000 with 42terrabytes :-)
After integrating this into our infrastructure, high available xen vms can be offered. Your XEN VM has no longer a dependency to a single server, it is now independent and can be moved in a running state.
Some facts:
42 terrabytes
288 * 146GB HD
32GB Cache
8 Fiber directors
See you guys to check this out (available in 8 weeks)