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.
Disable Capacity on Demand

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

C.
Disable Remote Copy

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