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Storage Networking Fundamentals: An Introduction to Storage Devices, Subsystems, Applications, Management, and Filing Systems by Marc Farley

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Chapter 9

1: What does RAID stand for?
A1: Answer: Redundant array of inexpensive disks
2: What kinds of storage entities can be members of a RAID array?
A2: Answer: Any storage address space: Devices, subsystems, SCSIlogical units, and volumes
3: True or false: RAID members have to be the same size.
A3: Answer: True
4: What is the Boolean function used in parity RAID?
A4: Answer: XOR
5: What is the purpose of parity with RAID?
A5: Answer: Parity RAIDprovides efficient data redundancy.
6: Describe the difference between strips and stripes.
A6: Answer: Strips are written to individual members, and stripes are all the related strips with a common parity value.
7: What is the best possible MTDL in a RAID 5 array?
A7: Answer: MTBF+ MTBF/2, using the MTBFspecification ...

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