Question: Find the maximum sustained I/O rate for random reads and writes. Ignore disk conflicts and assume the RAID controller is not the bottleneck. Follow the

Find the maximum sustained I/O rate for random reads and writes. Ignore disk conflicts and assume the RAID controller is not the bottleneck. Follow the same approach as outlined in Section 6.10 making similar assumptions where necessary.

The emergence of web servers for ecommerce, online storage, and communication has made disk servers critical applications. Availability and speed are well-known metrics for disk servers, but power consumption is becoming increasingly important. Answer the questions about configuration and evaluation of disk servers with the following parameters. a. b. Program Instructions/ 1/0 Operation 100,000 200,000 OS Instructions/ 1/0 Operation 150,000 200,000

a. b. Program Instructions/ 1/0 Operation 100,000 200,000 OS Instructions/ 1/0 Operation 150,000 200,000 Workload (KB reads) 64 128 Processor Speed (Instructions/ Second) 2 Billion. 3 Billion

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