A customer has an existing mainframe environment with an IBM DS8880 attached. This frame is only partially
populated. The customer is attaching existing IBM POWER servers that require a three-tier storage solution
including SSDs. Electrical power is not readily available. Price is also a key criteria in making the decision.
Which addition to the existing system should be proposed to this customer?

A.
Add IBM Spectrum Scale in front of the DS8880 along with additional disks in the DS8880

B.
Add a DCS3680 in a new rack

C.
Add IBM SAN Volume Controller along with IBM Storwize V7000

D.
Add disks to the DS8880