A storage system with a small number of 1TB disk drives has an issue involving high latency for an OLTP application. Which of the following items should the storage administrator consider FIRST?

A.
Replace the 1TB disk drives with 2TB disk drives.

B.
Increase the number of disk drives installed in the storage system

C.
Incorporate a new RAID array composed of SATA drives.

D.
Reduce the current amount of cache used by the controllers.