Method and system for reallocating data in a file system

Details Method and system for reallocating data in a file system Method and system for reallocating data in a file system

2005-10-26

2008-08-05

Elmore, Stephen C (Department: 2185)

Electrical computers and digital processing systems: memory

Storage accessing and control

Memory configuring

C711S111000, C711S112000, C711S114000, C711S156000, C711S158000, C711S165000, C707S793000

Reexamination Certificate

active

07409522

ABSTRACT:
A method and system for reallocating the data blocks of a logical data entity are described. According to one aspect of the invention, the physical arrangement of data blocks of a logical data entity are analyzed to determine a fragmentation level. Next the fragmentation level is compared with a fragmentation threshold previously assigned to the logical data entity. If the fragmentation level exceeds the fragmentation threshold, only those data blocks of the logical data entity that are within a predefined allocation area having a predetermined number of contiguous data blocks that are not associated with the logical data entity are reallocated.

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