You are adding additional HP StoreVirtual 4000 Storage nodes to your customer’s existing cluster.
The new nodes were shipped with LeftHand OS v10.0. The cluster is currently running
SAN/IQv9.0. CMC is running 10.0.
What must you consider before you perform the upgrade?

A.
The new storage system must be downgraded to version 9.0 software.

B.
The cluster will require an upgrade to version 10 before the new node can be added.

C.
All nodes should be upgraded to the latest version before adding the new node to the cluster.

D.
The new storage system can be added into the existing cluster without changing software
versions.

Explanation: