Data storage verification techniques for disk drivers

Details Data storage verification techniques for disk drivers Data storage verification techniques for disk drivers

2007-02-20

2007-02-20

Beausoliel, Robert (Department: 2113)

Error detection/correction and fault detection/recovery

Data processing system error or fault handling

Reliability and availability

C714S006130, C714S042000

Reexamination Certificate

active

10671032

ABSTRACT:
Techniques are provided for verifying the integrity of data written onto a memory device under test. A pseudo random number generator generates data patterns based on a known ‘seed’ that includes a date and time. A data storage system writes the data patterns onto the memory device under test and a reference drive. The data storage system then reads the data patterns from the memory device under test and the reference drive. Alternatively, the seed value is stored in the second memory device instead of the data pattern, and subsequently, the data storage system reads the seed value from the second memory device and regenerates the data pattern. The expected data patterns from the reference drive are compared to the data read from the memory device under test to verify whether the data storage system is operating properly.

REFERENCES:
patent: 5889937 (1999-03-01), Tamagawa
patent: 6061822 (2000-05-01), Meyer
patent: 2002/0095623 (2002-07-01), Bruce
Null, Linda: “Computer Organization and Architecture.” Copyright 2003. Jones and Barlett Publishers. pp. 293-294.
KC Abshere, Joel Camp, Chris Karr, “Applications of the Rules of Life in Real World Scenarios”, New Mexico High School Supercomputing Challenge, Apr. 9, 1997, 11 pages.
The GNU C Library, “Pseudo-Random Numbers”, Jul. 6, 2001, 2 pages.
EPOS Ltd., “EPOS Tester HDD—Device for HDD maintenance”, Mar. 15, 2002, 4 pages.
Tom Dickens, “Random Number Generation for Microcontrollers”, Robothon 2003, 3 pages.

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