One-way data mirror using copy-on-write

Methods and systems for one-way data mirror are described herein. In one aspect of the invention, the exemplary process includes receiving a first data being written to a data block on a first storage volume, indicating the data block being stored on a first storage image, the indication information...

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Bibliographische Detailangaben
1. Verfasser: CHONG FAY JR
Format: Patent
Sprache:eng
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Zusammenfassung:Methods and systems for one-way data mirror are described herein. In one aspect of the invention, the exemplary process includes receiving a first data being written to a data block on a first storage volume, indicating the data block being stored on a first storage image, the indication information being associated with a first storage image which is a copy on write snapshot, and writing the first data to the data block on the first storage image. Other methods and apparatuses are also described.