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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 5

1: List four types of connecting technologies used in storage subsystems.
A1: Answer: DASbus, Fibre Channel loop, system I/O bus, and switched connections
2: Name two types of device redundancy.
A2: Answer: Mirroring and parity RAID
3: True or false: Disk drives can have only a single connecting port.
A3: Answer: False. Fibre Channel drives are dual-ported and SATA, and SAS drives are expected to implement dual porting also.
4: How is battery backup used in a subsystem?
A4: Answer: It keeps power to volatile cache memory.
5: True or false: Temperature is never a problem for disk subsystems.
A5: Answer: False. Temperature should always be monitored.
6: What form of device redundancy does not increase capacity?
A6: Answer: Mirroring is a form of ...

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