Methods and apparatus for dynamic journal expansion
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United States of America Patent
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Nov 23, 2010
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app pub date -
Dec 26, 2007
filing date -
Dec 26, 2007
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Abstract
Method and apparatus to dynamically add storage for a journal in a continuous data protection system. In an exemplary embodiment, a method includes storing a plurality of journal data streams for a journal in a continuous data protection system in first storage, where streams in the journal data streams contain linked lists of data blocks, determining when the first storage exceeds a selected fullness threshold, allocating second storage for the journal in addition to the first storage, and storing data for the journal in the second storage.
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