EMC Performance Essential is an integrated server tuning and data management facility for z/OS environments that dramatically improves overall system performance. With Performance Essential, you can reduce I/O, CPU time, and elapsed time, and get unmatched virtual storage access method (VSAM) and non-VSAM application throughput.

With Performance Essential, your mainframe environment will operate at optimal levels, automatically and continuously. You'll lower system overhead without modifying applications and increase data center and end-user productivity. And, you'll reduce costs by eliminating manual performance analysis and extending the life of critical applications.