Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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Expert Solution & Answer
Chapter 12, Problem 1PE
Explanation of Solution
a)
Choice between the alternatives:
- In the first when considering SSD as the storage layer is better because it performance is guaranteed.
- With SSD is considered as a cache, some of the request is required to be read from the magnetic disks that can cause delays in it.
Explanation of Solution
b)
Choice between the alternatives:
- In the second case, the frequently used block that is blocks that are accessed at a higher level are not known exactly and it is not possible to assign a part of relation to the SSD.
- The relations are very large and it is completely not possible to assign all of the relation to SSD.
- Here SSD utilized as the cache will be work better in this case.
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