Disk array subsystem and data generation method therefor

Electrical computers and digital processing systems: memory – Storage accessing and control – Specific memory composition

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

371 511, G06F 1300, G06F 1110

Patent

active

057651833

ABSTRACT:
A disk drive has two channels of upper interfaces, and one channel is connected to a disk array controller, and the other channel is connected between a plurality of disk drives. A data disk drive reads the old data on the recording medium, calculates the exclusive OR of the old data and the corresponding data from the disk array controller, and transfers it to a parity disk as pseudo-parity data from the other channel. The parity disk drive reads the old parity data on the recording medium, calculates the exclusive OR of the old parity data and the pseudo-parity data, and writes it as new parity data.

REFERENCES:
patent: 5191584 (1993-03-01), Anderson
patent: 5235601 (1993-08-01), Stallmo et al.
patent: 5257391 (1993-10-01), DuLac et al.
patent: 5305326 (1994-04-01), Solomon et al.
patent: 5388108 (1995-02-01), DeMoss et al.
patent: 5390187 (1995-02-01), Stallmo
patent: 5398253 (1995-03-01), Gordon
patent: 5412661 (1995-05-01), Hao et al.
patent: 5418925 (1995-05-01), DeMoss et al.
patent: 5446855 (1995-08-01), Dang et al.
patent: 5485598 (1996-01-01), Kashima et al.
patent: 5533190 (1996-07-01), Binford et al.
patent: 5544339 (1996-08-01), Baba
patent: 5617425 (1997-04-01), Anderson
Anderson, Michael H. "Strength (and Safety) in Numbers", Byte, pp. 337-339, Dec. 1990.
Alford, Roger C. "Disk Arrays Explained", Byte, pp. 259-266, Oct. 1992.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Disk array subsystem and data generation method therefor does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Disk array subsystem and data generation method therefor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Disk array subsystem and data generation method therefor will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-2216275

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.