Method and system for creating snapshots by condition

Details Method and system for creating snapshots by condition Method and system for creating snapshots by condition

2008-07-22

2008-07-22

LeRoux, Etienne P (Department: 2161)

Data processing: database and file management or data structures

Database design

Data structure types

Reexamination Certificate

active

07403960

ABSTRACT:
The present invention provides fair use of resources between users by reducing capacity necessary for storage of snapshot differential data. In a storage device system, differences between only those files meeting predetermined conditions are managed as snapshots. Furthermore, upper limits are set for capacity of pools used for each condition, and when the total volume of differential data stored under a certain condition reaches the pool capacity, further snapshots are not created under that condition.

REFERENCES:
patent: 5819292 (1998-10-01), Hitz et al.
patent: 6959310 (2005-10-01), Eshel et al.
patent: 6981114 (2005-12-01), Wu et al.

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