Data de-duplication using thin provisioning

Details Data de-duplication using thin provisioning Data de-duplication using thin provisioning

2007-09-25

2010-10-26

Gu, Shawn X (Department: 2189)

Electrical computers and digital processing systems: memory

Storage accessing and control

Memory configuring

C711S161000, C711S162000, C711SE12002

Reexamination Certificate

active

07822939

ABSTRACT:
A system for de-duplicating data includes providing a first volume including at least one pointer to a second volume that corresponds to physical storage space, wherein the first volume is a logical volume. A first set of data is detected as a duplicate of a second set of data stored on the second volume at a first data chunk. A pointer of the first volume associated with the first set of data is modified to point to the first data chunk. After modifying the pointer, no additional physical storage space is allocated for the first set of data.

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