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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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Q & A

1:Why is data redundancy important?
2:What are three different forms of redundancy?
3:What's the first step in using delta redundancy?
4:List four locations in the I/O path that could contain mirroring operators.
5:Why can't two targets in a mirrored pair have different sizes (capacities)?
6:How can mirroring improve system performance?
7:Explain how a mirrored pair in a subsystem can be accessed through two different target addresses in a SAN.
8:Mirroring is sometimes used for remote data protection up to what distance?
9:If there are three layers of mirrors working in an I/O path, how many copies of data will be created?

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