A System z customer running z/OS Vi .11 is using a single D58801J storage system with Easy
Tier enabled. Storage performance for a business critical application needs to improve to handle
end-of-month and end-of-quarter processing. The customer requires minimal disruption to
operations.
Which feature or action should the technical specialist recommend to the customer to improve
performance for this application?

A.
Install a megapack of SSDs

B.
Enable and configure I/O Priority Manager

C.
Increase the installed cache of the D58800

D.
Adjust the cache block size used by the D58800

Explanation: