Patent
1993-06-29
1996-05-28
Beausoliel, Jr., Robert W.
39518205, G06F 1100
Patent
active
055220312
ABSTRACT:
A storage system having a plurality of disks arranged in a RAID array with one of said disks being a replacement disk. A method and apparatus for restoring the contents of the replacement disk without interrupting concurrent access to the RAID array. An access request by a user application to a data block in the replacement disk results in regeneration and reconstruction of the accessed data block. In addition, the systematic reconstruction of data or parity blocks not yet accessed by the user application occurs by locating status bits associated with each data and parity block of the new disk.
REFERENCES:
patent: 3814922 (1974-06-01), Nibby et al.
patent: 4092732 (1978-05-01), Ouchi
patent: 4434487 (1984-02-01), Rubinson et al.
patent: 4750106 (1988-06-01), Aiken, Jr.
patent: 4775978 (1988-10-01), Hartness
patent: 4870643 (1989-09-01), Buitman et al.
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: 5369758 (1994-11-01), Larson et al.
patent: 5390327 (1995-02-01), Lubbers et al.
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.
The Digital Guide to RAID Storage Technology, 1992, Digital Equipment Corporation, pp. 1-10.
Ellis Robert A.
Malan Steven J.
Rollow Alan
Thiel David W.
Wells Richard B.
Beausoliel, Jr. Robert W.
Digital Equipment Corporation
Hua Ly V.
Hudgens Ronald C.
Steubing Mary M.
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