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US07133983B2 Method, system, and program for asynchronous copy 有权
用于异步复制的方法,系统和程序

Method, system, and program for asynchronous copy
摘要:
For a technique for maintaining consistency of data, one or more blocks of data identified by a first structure are copied to form a consistent set of data. While not acknowledging completion of write requests to any blocks of data, a second structure is created, wherein the second structure indicates which blocks of data are modified while the consistent set of data is being formed.
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