An EMC customer is evaluating a single-engine EMC Disk Library (EDL) system. They placed the
EDL on their test infrastructure and performed 15 simultaneous backup jobs. The customer is
concerned that the overall performance numbers are substantially lower than the published
numbers.
Each job is sent to a separate virtual tape at an average rate of 18 MB/s. The EDL is connected to
the SAN through two FC ports at 4 GB/s. There are a total of 15 LUNs for virtual tape storage. The
infrastructure has been certified to sustain performance in excess of the EDL’s capability.
What would you recommend to improve the overall performance?

A.
Increase the number of simultaneous streams to at least 22

B.
Disable Remote Copy

C.
Increase the number of FC port connections to 4 and redistribute the tape drive assignment

D.
Disable Capacity on Demand