Method and system for providing logically consiste

专利名称：Method and system for providing logically

consistent logical unit backup snapshotswithin one or more data storage devices

发明人：Robert A. Cochran申请号：US09895474申请日：20010628

公开号：US20030051109A1公开日：20030313

专利附图：

摘要：A method and system for providing logically consistent backup copies of alogical unit provided by a data storage device, and for managing and maintaining a pool

of increasingly stale backup copies within the data storage device. Backup logical unitswithin the pool are continuously recycled, so that the least recently current backuplogical unit is next synchronized and activated to receive mirror I/O requests. A triggerI/O request is provided to allow an application program running on a host computer tosignal points within a stream of I/O requests that represent logically consistent states.

申请人：COCHRAN ROBERT A.

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