RAID 1 mirrors data among several disks. Assuming that inexpensive disks have lower MTBF than expensive disks,
Question:
RAID 1 mirrors data among several disks. Assuming that inexpensive disks have lower MTBF than expensive disks, how can redundancy using inexpensive disks result in a system with lower MTBF? Use the mathematical deinition of MTBF to explain your answer. For each of the activities listed in the table, will RAID 1 help better achieve their goals?
RAID is among the most popular approaches to parallelism and redundancy in storage systems. The name Redundant Arrays of Inexpensive Disks implies several things about RAID arrays that we will explore in the context of the following activities.
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RAID 1 also known as disk mirroring duplicates the same data across multiple disks providing redundancy In RAID 1 each disk contains a complete copy o...View the full answer
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ISBN: 9780123747501
4th Revised Edition
Authors: David A. Patterson, John L. Hennessy
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