| 摘要 |
An invention is provided for distributing storage I/O loads across multiple storage devices with different performance characteristics. The method includes examining a current I/O request to determine characteristics of the current I/O request. The characteristics of the current I/O request are then compared to characteristics of other pending I/O request. Then, a storage device is selected from a plurality of storage devices based on the characteristics of the current I/O request and the characteristics of other pending I/O request. Here, the plurality of storage devices includes at least one storage device having higher performance characteristics than another storage device of the plurality of storage devices. Once selected, the selected storage device is utilized with the current I/O request.
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