发明名称 |
Failover and failback of write cache data in dual active controllers |
摘要 |
A data storage system is provided with a pair of controllers and circuitry configured for failing back from a single active write back mode to a dual active write back mode by copying cached data directly from a cache of a survivor controller of the pair of controllers to a cache of the other controller. A method is provided for failing over from a dual active mode of first and second controllers to a single active mode of the first controller by relying on previously mirrored cache data by the second controller; reinitializing the second controller; and failing back to the dual active mode by copying cached data directly from the first controller to the second controller.
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申请公布号 |
US2008005614(A1) |
申请公布日期 |
2008.01.03 |
申请号 |
US20060479846 |
申请日期 |
2006.06.30 |
申请人 |
SEAGATE TECHNOLOGY LLC |
发明人 |
LUBBERS CLARK E.;WALKER MICHAEL D.;ELKINGTON SUSAN G. |
分类号 |
G06F11/00 |
主分类号 |
G06F11/00 |
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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