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POINT IN TIME COPY OPERATIONS FROM SOURCE VOLUMES TO SPACE EFFICIENT TARGET VOLUMES IN TWO STAGES VIA A NON-VOLATILE STORAGE
POINT IN TIME COPY OPERATIONS FROM SOURCE VOLUMES TO SPACE EFFICIENT TARGET VOLUMES IN TWO STAGES VIA A NON-VOLATILE STORAGE
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机译:在两个阶段通过非挥发性存储从源体积到空间有效目标体积的时间复制操作点
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摘要
A request is received to perform a point in time copy operation from a source volume to a space efficient target volume. A controller copies data stored in a group of data storage units, from the source volume to a non-volatile storage, to preserve the point in time copy operation. A background process asynchronously copies the data from the non-volatile storage to the space efficient target volume to commit a physical point in time copy of the data from the source volume to the target volume.
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