The number of drives that make up a single RAID 5 array may be specified by a database administrator. What are the trade-offs between having fewer disks and having more disks in terms of cost, longevity, performance after failure, and performance while rebuilding?

Systems Architecture
7th Edition
ISBN:9781305080195
Author:Stephen D. Burd
Publisher:Stephen D. Burd
Chapter12: Secondary Storage Management
Section: Chapter Questions
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The number of drives that make up a single RAID 5 array may be specified by a database administrator. What are the trade-offs between having fewer disks and having more disks in terms of cost, longevity, performance after failure, and performance while rebuilding?

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