Patent
1995-02-08
1996-04-02
Beausoliel, Jr., Robert W.
39518505, G06F 1100
Patent
active
055048587
ABSTRACT:
A data storage system using a RAID array and a logging process and apparatus that identifies a parity block that may not contain the proper parity for its associated data blocks and which prevents such inconsistent parity information from being used in the regeneration of unavailable data. A small fraction of the blocks of each disk are dedicated to storing parity metadata bits. The parity metadata is associated with the parity blocks and identifies whether or not each parity block contains the proper parity information for its associated data blocks or may contain invalid information. The data integrity of the RAID array is preserved by preventing the generation of undetected corrupt data.
REFERENCES:
patent: 4092732 (1978-05-01), Ouchi
patent: 4434487 (1984-02-01), Rubinson et al.
patent: 4775978 (1988-10-01), Hartness
patent: 4914656 (1990-04-01), Dunphy et al.
patent: 4989205 (1991-01-01), Dunphy et al.
patent: 4989206 (1991-01-01), Dunphy et al.
patent: 5088081 (1992-02-01), Farr
patent: 5166936 (1992-11-01), Evert et al.
patent: 5233618 (1993-08-01), Glider et al.
The Digital Guide to RAID Storage Technology, 1992, Digital Equipment Corporation.
A Case for Redundant Array of Inexpensive Disks (RAID), David A. Patterson, Garth Gibson, Randy H. Katz, Report No. UCB/CSD 87/391 Dec., 1987, Computer Science Division (EECS), University of California, Berkeley, CA 94720.
A Case for Redundant Arrays of Inexpensive Disks (RAID), David A. Patterson, Garth Gibson, and Randy H. Katz, ACM SIGMOD Conference-Jun. 1-3, 1988, Chicago, Illinois.
Two Papers on RAIDs, Peter Chen, Garth Gibson, Randy H. Katz, David A. Patterson, Martin Schulze, Report No. UCB/CSD 88/479, Dec., 1988, Computer Science Division (EECS), University of California, Berkeley, CA 94720.
An Introduction to RAID-Redundant Arrays of Inexpensive Disks, Peter McLean, Apr. 24, 1991, DigitaL Equipment Corporation-CX01-2/N26.
Software and Performance Issues in the Implementation of a RAID Prototype, Edward K. Lee, Report No. UCB/CSD 90/573, May 1990, Computer Science Division (EECS), University of California, Berkeley, CA 94720.
A Queuing Analysis of RAID Architectures, Schenze Chen and Don Towsley, Coins Tech. Report 91-71, Department of Computer and Information Science, University of Massachusetts, Amherst, MA 01003.
Ellis Robert A.
Lubbers Clark E.
Malan Steven J.
Rivera Peter
Snyder Sid
Beausoliel, Jr. Robert W.
Digital Equipment Corporation
Hudgens Ronald C.
Palys Joseph E.
Thompson James F.
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