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US07757057B2 Optimized rollback of copy-on-write snapshot volumes 失效
优化的写时复制快照卷的回滚

Optimized rollback of copy-on-write snapshot volumes
Abstract:
The present invention is an optimized method for the rollback of copy-on-write snapshot volumes. A method in accordance with the present invention may comprise the following steps: (a) creating a copy-on-write snapshot volume; (b) receiving a base volume write request addressed to a base volume data block; (c) executing copy-on-write operations; (d) receiving a snapshot volume rollback request; (e) disabling the copy-on-write operations; and (f) executing volume copy operations.
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