| 摘要 |
In a computer system, a distributed storage system having a data coherency unit for maintaining data coherency across a number of storage devices sharing such data is described. The data coherency unit includes logic to monitor data transition states in each of the data storage devices to detect when the processing status of data being shared by two or more of the storage devices changes. The data coherency unit advantageously ensures a status change in shared data in one storage device is broadcast to other storage devices having copies of the data without having each storage device independently monitor adjourning storage devices to detect data state changes.
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