Chapter 5.7.2. Segment size
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Chapter 5. Storage controller 69 workloads. A common mistake that people make when selecting array width is the tendency to focus only on the capability of a single array to perform various workloads. However, you must also consider in this decision the aggregate throughput requirements of the entire storage server. A large number of physical disks in an array can create a workload imbalance between the controllers, because only one controller of the DS4000 actively accesses a specific array. When selecting array width, you must also consider its effect on rebuild time and availability. A larger number of disks in an array increases the rebuild time for disk failures, which can have a negative effect on performance. ...
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