| Publisher | University of Michigan | ||
|---|---|---|---|
| Format | 149.7KB PDF | Date added | 12 Aug 2002 |
| Topics | RAID, Removable Storage | ||
| Downloads | 77 | ||
Redundant disk arrays are an increasingly popular way to improve I/O system performance. Past research has studied how to stripe data in non-redundant (RAID Level 0) disk arrays, but none has yet been done on how to stripe data in redundant disk arrays such as RAID Level 5, or on how the choice of striping unit varies with the number of disks. Using synthetic workloads, this paper derives simple design rules for striping data in RAID Level 5 disk arrays given varying amounts of workload information. The paper then validates the synthetically derived design rules using real workload traces to show that the design rules apply well to real systems.
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