Storage Networking Fundamentals: An Introduction to Storage Devices, Subsystems, Applications, Management, and File Systems (Vol 1)

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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