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?

Replacing 1TB drives with 2TB drives increases capacity but does not inherently increase IOPS, which is the primary concern for high latency in OLTP.

OLTP applications are characterized by high transaction rates and random I/O, which require a high number of Input/Output Operations Per Second (IOPS). Increasing the number of disk drives directly increases the total available IOPS, distributing the load and reducing latency.

Incorporating SATA drives might worsen performance for OLTP applications, as SATA drives typically have lower performance and durability compared to SAS or FC drives often used in enterprise SANs, and would not be a primary solution for high latency.

Reducing cache would almost certainly increase latency, as cache is designed to improve performance by holding frequently accessed data closer to the CPU.