Methods and apparatus for dynamic journal expansion

Details Methods and apparatus for dynamic journal expansion Methods and apparatus for dynamic journal expansion

2007-12-26

2010-11-23

Trujillo, James (Department: 2159)

Data processing: database and file management or data structures

File or database maintenance

Database backup

C707S672000, C707S684000, C707S823000

Reexamination Certificate

active

07840536

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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