发明名称 |
Write Cache Management Method and Apparatus |
摘要 |
A method for destaging data from a memory of a storage controller to a striped volume is provided. The method includes determining if a stripe should be destaged from a write cache of the storage controller to the striped volume, destaging a partial stripe if a full stripe write percentage is less than a full stripe write affinity value, and destaging a full stripe if the full stripe write percentage is greater than the full stripe write affinity value. The full stripe write percentage includes a full stripe count divided by the sum of the full stripe count and a partial stripe count. The full stripe count is the number of stripes in the write cache where all chunks of a stripe are dirty. The partial stripe count is the number of stripes where at least one chunk but less than all chunks of the stripe are dirty. |
申请公布号 |
US2013326149(A1) |
申请公布日期 |
2013.12.05 |
申请号 |
US201213482314 |
申请日期 |
2012.05.29 |
申请人 |
BARRELL MICHAEL DAVID;TRAUT ZACHARY DAVID;DOT HILL SYSTEMS CORPORATION |
发明人 |
BARRELL MICHAEL DAVID;TRAUT ZACHARY DAVID |
分类号 |
G06F12/08 |
主分类号 |
G06F12/08 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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