We are having a Exchange 2007 cluster runs on Windows 2003 R2 ENT Edition - 64 Bit. Exchange cluster runs with 6 Nodes (Server 1 to Server 5 acts as active node), Server 6 acts as passive node and it is the preferred failover node for other 5 nodes. Each node is presented with 3 SAN disk. One disk is assigned for database, remaining 2 disk is assigned for log files. Quorum & MSDTC is visible to all nodes.
We are planning to migrate the SAN disks from IBM DS 8100 to IBM SVC. We are planning to migrate using image mode vdisks. We would like to know whether there would be any disk signature related issues with this approach and whether it is feasible to migrate the servers one after the other?