Error detection/correction and fault detection/recovery – Data processing system error or fault handling – Reliability and availability
Reexamination Certificate
2006-12-26
2006-12-26
Beausoliel, Robert (Department: 2113)
Error detection/correction and fault detection/recovery
Data processing system error or fault handling
Reliability and availability
C714S804000, C711S114000
Reexamination Certificate
active
07155634
ABSTRACT:
A method, system and program for generating parity in a data storage system are provided. The invention comprises organizing an incoming data block into a specified number of data stripes and cascading the data stripes into a parity creation mechanism. The parity creation mechanism creates a specified number of parity stripes based on the data stripes, wherein the number of parity stripes is independent of the size of the data block. The parity creation mechanism can operate offline to reconstruct lost data stripes and parity stripes without using critical system resources, wherein the number of devices required for stripe reconstruction is less than the combined number of data stripes and parity stripes.
REFERENCES:
patent: 4205324 (1980-05-01), Patel
patent: 4771458 (1988-09-01), Citta et al.
patent: 6289415 (2001-09-01), Johnson
patent: 6529997 (2003-03-01), Debiez et al.
patent: 6581185 (2003-06-01), Hughes
patent: 6848022 (2005-01-01), Nanda
patent: 2002/0095616 (2002-07-01), Busser
patent: 2004/0205387 (2004-10-01), Kleiman et al.
Patel, Arvind M. “Adaptive cross-parity (AXP) code for a high-density magnetic tape subsystem.” IBM J. Res. Develop. vol. 29, No. 6, Nov. 1985, pp. 546-562.
“Counter-intuitive RAID Rebuild Algorithm for Virtual Tape Server.” IBM Technical Disclosure Bulletin, Oct. 2001, UK.
Carret Christophe
Debiez Jacques
Hughes James P.
Le Graverand Philippe Y.
Milligan Charles A.
Beausoliel Robert
Brooks & Kushman P.C.
Guyton Phillip
Storage Technology Corporation
LandOfFree
Process for generating and reconstructing variable number of... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Process for generating and reconstructing variable number of..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for generating and reconstructing variable number of... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3681339