After initial installation of DSSSOO systems in a customer site a review must be conducted to verify that the
disk system performance is in range.
How can the cache hit ratio be verified?

A.
Use the DSS000 Real Time Performance Monitor

B.
Issue the CLI command dscli>verify-perf-read hit-time period

C.
Use the pen stat command in the CLI

D.
Use Tivoli Storage Productively Center