A customer has a database application that needs 4TB of table space. The CIO is concerned
about performance and reliability for this application. The finance officer says they can only afford
a maximum of twenty disk drives to support this application and meet the fiscal budget. The
workload will be 4KB random, at a mix of 80/20/50 for read/write/miss ratios, running on their
pSeries AIX host. Which offering would be the best fit and meet the customer’s budget
constraints?

A.
One 8+P RAID 5 array of 750 GB SATA disks

B.
One 10+10 RAID 10 of 500GB SATA disks

C.
Two 8+P RAID 5 arrays of 300GBfibre channel disks

D.
One 18+P RAID 5 array of 300GBfibre channel disks