Data processing: structural design – modeling – simulation – and em – Emulation
Reexamination Certificate
2007-08-07
2007-08-07
Shah, Kamini (Department: 2128)
Data processing: structural design, modeling, simulation, and em
Emulation
C703S024000, C714S048000, C714S702000, C714S718000, C714S723000, C714S742000, C702S115000, C369S043000
Reexamination Certificate
active
10273310
ABSTRACT:
A method and apparatus is provided which reduces the equipment and time requirements for hard disk drive performance testing during manufacturing. This invention executes self-contained performance testing code that resides within the drive's manufacturing firmware, rather than relying on external testers. The invention involves exercising the drive's enqueue, dequeue, and command execution firmware, as well as the physical process of reading and writing data by simulating the host interface in code. The invention enqueues commands that typify the desired workload, allows a command ordering algorithm to sort the commands for execution, and allows the drive side code to execute the commands just as if an external host interface were attached. The invention is advantageous because the performance testing can be done by only applying power to the drive. The present invention also lends itself to performance tuning that can be done in manufacturing, to reduce drive-to-drive performance variations.
REFERENCES:
patent: 5345561 (1994-09-01), Kato
patent: 5615335 (1997-03-01), Onffroy et al.
patent: 5890219 (1999-03-01), Scaringella et al.
patent: 6058493 (2000-05-01), Talley
patent: 6233660 (2001-05-01), Vishlitzky
patent: 6385739 (2002-05-01), Barton et al.
patent: 6560569 (2003-05-01), Abu El Ata
patent: 6622221 (2003-09-01), Zahavi
patent: 6629448 (2003-10-01), Cvancara
patent: 6643798 (2003-11-01), Barton et al.
patent: 6900957 (2005-05-01), Gillis et al.
patent: 6940279 (2005-09-01), Chong et al.
patent: 7054790 (2006-05-01), Rich
patent: 2002/0091966 (2002-07-01), Barton et al.
patent: 2003/0163649 (2003-08-01), Kapur et al.
patent: 2003/0223315 (2003-12-01), Gillis et al.
patent: 2004/0044508 (2004-03-01), Hoffman, Jr.
patent: 2004/0103355 (2004-05-01), Correale et al.
patent: 2006/0227445 (2006-10-01), Chiao et al.
James Jeppesen, Walt Allen, Steve Anderson, Michael Pilsl, Hard Disk Controller: the Disk Drive's Brain and Body, 2001, IEEE Computer Sciety, pp. 1-6.
Spencer W. Ng,Advances in Disk Technology: Performance Issues,1998 IEEE, pp. 75-81.
Soichi Ibaraki,Masayoshi Tomizuka,Tuning of a Hard Disk Drive Servo Controller Using Fixed-Structure H Controller Optimization,Sep. 2001,Transactions of the ASME,vol. 123, pp. 544-549.
Briggs Trevor James
Espeseth Adam Michael
Steinbach Robert Anton
Wiederholt Christopher David
Cahill Steven J.
Duncan Patrick
Gebresilassie Kibrom K.
Hitachi Global Storage Technologies - Netherlands B.V.
Nock James R.
LandOfFree
Method and apparatus for automated analysis of hard disk... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for automated analysis of hard disk..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for automated analysis of hard disk... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3900349