Excavating
Patent
1994-01-05
1996-03-12
Gordon, Paul P.
Excavating
395441, G06F 1100
Patent
active
054992532
ABSTRACT:
Systems and methods for performing the check code calculations for RAID 6 computer mass storage arrays are disclosed such that it becomes computationally feasible to implement a RAID 6 system in software on a modern high-speed computer. For a standard "P+Q" RAID 6 array, the system and method of the present invention allow the calculation of both RAID 6 check codes in less than twice the time it takes to calculate simple RAID 5 parity. The system and method of the present invention are based on a careful matching of the characteristics of the Commutative Ring in which calculations take place to the capabilities of modern high-speed computers. In a particular embodiment, defining the mapping of data and check symbols to computer storage locations in a transposed manner affords a further reduction of computation time.
REFERENCES:
patent: 5195100 (1993-03-01), Katz et al.
patent: 5265098 (1993-11-01), Mattson et al.
patent: 5301297 (1994-04-01), Menon et al.
patent: 5303244 (1994-04-01), Watson
patent: 5309451 (1994-05-01), Noya et al.
The RAID Advisory Board, Lino Lakes, MN, Apr. 1993, The RAID Book; A Source Book for RAID Technology.
"A Case For Redundant Tarrays of Inexpensive Disks (RAID)" ACM SIGMOND Conference, Chicago, Ill., Patterson et al., pp. 109-116, Jun. 1, 1988.
Digital Equipment Corporation
Fisher Arthur W.
Gordon Paul P.
Hudgens Ronald C.
LandOfFree
System and method for calculating RAID 6 check codes does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with System and method for calculating RAID 6 check codes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System and method for calculating RAID 6 check codes will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2105916