发明授权
US09519589B2 Methods to perform disk writes in a distributed shared disk system needing consistency across failures 有权
在分布式共享磁盘系统中执行磁盘写入的方法需要跨故障的一致性

Methods to perform disk writes in a distributed shared disk system needing consistency across failures
摘要:
Techniques are provided for managing caches in a system with multiple caches that may contain different copies of the same data item. Specifically, techniques are provided for coordinating the write-to-disk operations performed on such data items to ensure that older versions of the data item are not written over newer versions, and to reduce the amount of processing required to recover after a failure. Various approaches are provided in which a master is used to coordinate with the multiple caches to cause a data item to be written to persistent storage. Techniques are also provided for transferring data items and locks associated with the data items from one node to another.
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