Q A

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?