Intelligent disk array controller

Details Intelligent disk array controller Intelligent disk array controller

1990-07-20

1993-05-11

Beausoliel, Robert W.

Excavating

371 401, 371 211, G11C 2900

Patent

active

052108600

ABSTRACT:
A method for performing background disk sector analysis for drives, including drives dedicated to redundancy and/or fault recovery techniques, in an intelligent, microprocessor based disk array. The method directs the microprocessor to wait a specified time and test for disk activity. In the absence of disk activity, the disk controller is directed to generate a read request for a disk memory location within the array. A return code following the array is checked to determine if the read failed, indicating a disk drive media failure. The disk controller is then notified if a failure occurs. The processor again checks for disk array activity and in the absence of activity issues a read request for successive locations within the array, thereby reading all disk memory locations within the array.

REFERENCES:
patent: 3771143 (1973-11-01), Taylor
patent: 4384348 (1983-05-01), Nozaki
patent: 4630269 (1986-12-01), Gershenson et al.
patent: 4669082 (1987-05-01), Tilghman et al.
patent: 4724531 (1988-02-01), Angleton et al.
patent: 4775978 (1988-10-01), Hartness
M. Schulze, "Considerations in the Design of a RAID Prototype," Aug. 1988, Report No. UCB/CSD 88/448, University of California Berkeley.
G. Gibson, L. Hellerstein, R. Karp, R. Katz and D. Patterson, "Coding Techniques for Handling Failures in Large Disk Arrays," Dec. 1988, Report No. UCB/CSD 88/477, University of California Berkeley.
D. Patterson, G. Gibson and R. Katz, "A Case Study for Redundant Arrays of Inexpensive Disks (RAID)," Dec. 1987, Report No. UCB/CSD 87/391, University of California Berkeley.

Affiliated with

Also associated with

Rating

Intelligent disk array controller does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Intelligent disk array controller, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Intelligent disk array controller will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1357751