Certkiller .com has a CX400 array that is directly attached (DAS) to two dual-attached Solaris servers in a cluster configuration. A decision is made to grow the number of nodes in the cluster, due to a growth in customer base and overall system I/O. The customer wants to add as many nodes as possible. To this array, what is the maximum number of nodes that can be added and still maintain the high availability nature of the current configuration?

A.
15

B.
2

C.
0

D.
4