November 2001
Intermediate to advanced
158 pages
5h 10m
English
Content preview from IBM ESS and IBM DB2 UDB Working Together
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Chapter 3. Configuration for performance and manageability 35
3.2.4 Selecting ESS logical disk sizes
ESS gives you great flexibility when it comes to allocating disk space. This is particularly
helpful when you need to attach multiple hosts or implement security. However, this flexibility
can present a challenge as you plan for future requirements.
Criteria for selecting ESS logical disk sizes
ESS supports a high degree of parallelism and concurrency on a single logical disk. As a
result, performance tests have indicated that a single logical disk consuming an entire array
achieves the same performance as many smaller logical disks on that arra ...
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