Method and apparatus for reduction of I/O operations in persiste

Details Method and apparatus for reduction of I/O operations in persiste Method and apparatus for reduction of I/O operations in persiste

1996-07-15

1998-05-05

Chung, Phung

Excavating

39518502, 371 671, G06F 1134

Patent

active

057488851

ABSTRACT:
A method and apparatus for reducing the number of I/O operations in a persistent storage system. A block of data to be written to a location on a persistent storage device is exclusive OR'd (XOR'd) with the block of data currently stored at the location on the device. The result of the XOR operation is examined for differences between the block of data currently stored in the location and the block of data to be written to the location. If the result of the XOR operation indicates that there is no difference between the block of data currently in the location and the block of data to be written to the location, additional I/O operations are avoided.

REFERENCES:
patent: 4160240 (1979-07-01), Partipilo
patent: 5289418 (1994-02-01), Youngerth
patent: 5303244 (1994-04-01), Watson
patent: 5315602 (1994-05-01), Noya et al.
patent: 5341381 (1994-08-01), Fuller
patent: 5375128 (1994-12-01), Menon et al.
patent: 5390187 (1995-02-01), Stallmo
patent: 5390327 (1995-02-01), Lubbers et al.
patent: 5568437 (1996-10-01), Jamal

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