March 2008
Intermediate to advanced
326 pages
10h 22m
English
208 SAN Volume Controller: Best Practices and Performance Guidelines Table 11- 1 Extent size as opposed to maximum storage capacity 11.3.4 Database strip size considerations ( throughput workload) It is also worthwhile thinking about the relative strip sizes ( a strip is the amount of data written to one “ volume” or “ container” before going to the next volume or container). Database strip sizes are typically small. Let us assume they are 32 KB. The SVC strip size ( called extent) is about 64 MB. The back- end RAID arrays have strip sizes in the neighborhood of 64- 512 KB. Then, there is the number of threads performing I/ O ( assume they are sequential, because if they are random, ...
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