| 摘要 |
There is provided a RAID with high power and low power disk drives. A redundant array of independent disks (RAID) system, comprising a first disk array that includes X high power disk drives (HPDD), wherein X is greater than or equal to 2; a second disk array that includes Y low power disk drives (LPDD), wherein Y is greater than or equal to 1; an array management module that communicates with said first and second disk arrays and that utilizes said second disk array to cache data to and/or from said first disk array.
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