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Unformatted text preview: Assume that the disk is idele (i. e. there is no wait time) Hint ( p571). (10points) 1c. (p573). Define reliability, MTTF, and MTTR. Define availability using MTTF and MTTR. (5 ) points 1d. p574 -575. What are the advantages of RAID (Redundant arrays of inexpensive disks)? What are striping (RAID0), mirroring (RAID1) and error detecting and correcting code (RAID2) (5 points) (2a) Measuring and improving Cache performance. (p492-494 ). Explain how multilevel caching reduces miss penalty. State all assumptions and write down the equations for CPU time, memory stall clock cycles, Read stall cycles. Also explain how to handle write through and Write-back schemes Under the assumption write buffer-stalls are negligible write down the equation the reads and writes using single miss rate and miss penalty (10 points) 2(b) Do example page 493-495 & Example p 495 (10points) 1...
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This note was uploaded on 09/30/2008 for the course CMPEN 331 taught by Professor Bhat during the Spring '08 term at Pennsylvania State University, University Park.
- Spring '08