December 2006
Intermediate to advanced
228 pages
6h 20m
English
book
Introduction to the New Mainframe: Large-Scale Commercial Computing
by Mike Ebbers, Pilar Gonzalez Adrados, Frank Byrne, Rodney Martin, Jon Veilleux
Content preview from Introduction to the New Mainframe: Large-Scale Commercial Computing
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Chapter 6. Accessing large amounts of data 125
6.16 Questions for review
To help test your understanding of the material in this chapter, complete the
following review questions:
1. What are Control units?
2. Can you explain RAID?
3. What is “random access to data”?
4. Why is data sharing needed?
5. What is the difference between MA and PAV?
6. Why don’t we place all our data on tape? It is less costly. What do we use?
6.17 Topics for further discussion
1. By today’s standards, what constitutes a large amount of data?
Key terms in this chapter
Channel
subsystem
Control unit DFSMS Migration Tape library
CKD DASD FBA PAV
Control block Data sharing Logical ...
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.