Adding a New Physical Disk Resource From a Second SAN

Hi all,

I'm running an Exchange 2003 active/passive 2-node cluster, on W2K3
Enterprise SP2. The stores currenty reside on EMC arrays. I'm getting ready
to migrate the Exchange data over to our IBM SAN. This will be done in
phases, with one SG's databases getting migrated in the first phase. Here's
the procedure I'm going to follow to migrate the first chunk of data -

1. On the new (target) storage system, add the passive Exchange node
(B-node) to the host group to zone the new LUNs to it.
2. On the B-node, scan in the new disks, assign drive letters, and format.
3. In Cluster Administrator, move the Cluster Group and the Exchange
Virtual Server Group to the B-node, which now has the new disks.
4. In Cluster Administrator, create a new resource group (Test Group), and
add the new LUNs as new physical disk resources in the Test Group.
5. On the storage system, add Exchange A-node to the host group to zone the
new LUNs to it.
6. On the A-node, scan in the new disks, assign drive letters to match the
B-node, format.
7. In Cluster Administrator, move the Test Group to the A-node, to test
failover of the new disks, then fail back to the B-node.
8. In Cluster Administrator, move the new physical disk resources to the
Exchange Virtual Server group, then delete the Test Group.

Does this procedure make sense for adding new disk resources from a second
SAN? Please advise with any insights, or if there's a better way to do this.
Thanks in advance....