TruCluster V5.1B-2 and HDS 8570 Storage

Admins,

We are running a couple of 4 node clusters (2 x ES40 &
2 x ES45) multi-pathed to HDS 9570 storage via Cisco
9216 Fabric switches. Backups are purformed using
vdump to a SAN attached Overland Neo2000 with FCO
Card.

Our client, who runs multiple Progress RDMS
applications, has requested a move to 24x7 service and
I am investigateing the use of HDS ShadowImage within
this environment to provide this facility.

So, does anyone have any experience using HDS 9570
storage and ShadowImage in a cluster environment?
Any advice, guidence, tips much appreciated.

If anyone providing a similar service, how are you
doing it? What's your experience? all welcome :)

Thanks in advance

Lawrie.