Exercise 6.19 For disks in the table in Exercise 6.18, assume that your vendor offers a RAID 0 confi guration that will increase storage system throughput by 70% and a RAID 1 confi guration that will drop AFR of disk pairs by 2. Assume that the cost of each solution is 1.6 times the original solution cost.

6.19.1 [5] <6.9, 6.12> Given only the original problem parameters, would you recommend upgrading to either RAID 0 or RAID 1 assuming individual disk parameters remain the same in the previous table?

6.19.2 [5] <6.9, 6.12> Given that your company operates a global search engine with a large disk farm, does upgrading to either RAID 0 or RAID 1 make economic sense given that your income model is based on the number of advertisements served?
6.19.3 [5] <6.9, 6.12> Repeat Exercise 6.19.2 for a large disk farm operated by an online backup company. Does upgrading to either RAID 0 or RAID 1 make economic sense given that your income model is based on the availability of your server?