A customer has an IBM SAN Volume Controller cluster with two CF8 nodes that contain one four-port Fibre Channel card. The customer desires to replace these two nodes with two new SV1 nodes running compression. The customer requires that this upgrade occur without down time.
Which step is needed first to ensure success of this upgrade?
A . Determine if the new SV1 nodes have a compression accelerator
B . Confirm the CF8 nodes are running at least software version V7.7.1.
C . Make sure there are at least two Fibre channel cards in the sv1 Nodes
D . Ensure the new SV1 nodes have one hot spare node
Answer: B