Backup of incremental metadata in block based backup systems

Details Backup of incremental metadata in block based backup systems Backup of incremental metadata in block based backup systems

2011-01-18

2011-01-18

Vital, Pierre M (Department: 2156)

Data processing: database and file management or data structures

File or database maintenance

Database backup

Reexamination Certificate

active

07873601

ABSTRACT:
Performing a backup is disclosed. A changed portion of a file system tree is determined based at least in part on a stored state of the file system tree at a time a prior block based backup of the file system tree was performed. Incremental metadata associated with the changed portion is obtained. The obtained incremental metadata is stored where there is at least some metadata associated with an unchanged portion of the file system tree that is not stored when storing the obtained incremental metadata.

REFERENCES:
patent: 7334098 (2008-02-01), Poston
patent: 7464234 (2008-12-01), Stringham
patent: 2003/0018878 (2003-01-01), Dorward et al.
patent: 2003/0177149 (2003-09-01), Coombs
patent: 2005/0216788 (2005-09-01), Mani-Meitav et al.
patent: 2007/0112895 (2007-05-01), Ahrens et al.

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