Patent
1994-03-24
1997-06-03
Chan, Eddie P.
395250, 395441, G06F 1208
Patent
active
056363583
ABSTRACT:
A computer storage system having a dual port buffer memory for improved performance. The invention comprises a computer storage subsystem that includes a dual port buffer memory that effectively provides two internal data busses for the storage subsystem: one bus for data transfers between the dual port buffer memory and the storage units, and a second bus for data transfers between the dual port buffer memory and a CPU. The throughput of the storage subsystem is roughly equivalent to the bandwidth of the slower of the two busses. In alternative configurations, the invention may use a plurality of dual port buffer memories in parallel to increase the effective throughput of the storage subsystem, and better match the bandwidth of the two busses.
REFERENCES:
patent: 3893178 (1975-07-01), Sordello
patent: 4092732 (1978-05-01), Ouchi
patent: 4467421 (1984-08-01), White
patent: 4562576 (1985-12-01), Ratcliffe
patent: 4667326 (1987-05-01), Young et al.
patent: 4722085 (1988-01-01), Flora et al.
patent: 4754397 (1988-06-01), Varaiya et al.
patent: 4761785 (1988-08-01), Clark et al.
patent: 4768193 (1988-08-01), Takemae
patent: 4775978 (1988-10-01), Hartness
patent: 4796232 (1989-01-01), House
patent: 4811280 (1989-03-01), Berkowitz et al.
patent: 4817035 (1989-03-01), Timsit
patent: 4849929 (1989-07-01), Timsit
patent: 4870643 (1989-09-01), Bultman et al.
patent: 4899342 (1990-02-01), Potter et al.
patent: 4914656 (1990-04-01), Dunphy, Jr. et al.
patent: 4993030 (1991-02-01), Krakauer et al.
patent: 5034914 (1991-07-01), Osterlund
patent: 5073851 (1991-12-01), Masterson et al.
patent: 5115411 (1992-05-01), Kass et al.
patent: 5146576 (1992-09-01), Beardsley et al.
patent: 5157775 (1992-10-01), Sanger
patent: 5247649 (1993-09-01), Bandoh
patent: 5258843 (1993-11-01), Truong
patent: 5261064 (1993-11-01), Wyland
patent: 5265145 (1993-11-01), Brady et al.
patent: 5274790 (1993-12-01), Suzuki
patent: 5276850 (1994-01-01), Sakaue
patent: 5287480 (1994-02-01), Wahr
patent: 5291609 (1994-03-01), Herz
patent: 5402428 (1995-03-01), Kakuta et al.
patent: 5410666 (1995-04-01), Nakano et al.
"TMS 44C251 262,144 Ey 4-Bit Multiport Video RAM" by Texas Instruments, 1988, pp. 4-79, 80 and 4-117, 118.
Gibson, G.A., Performance and Reliability in Redundant Arrays of Inexpensive Disks (Date Unknown).
Chen, P., An Evaluation of Redundant Arrays of Disks Using an Amdahl 5890; (May 1989).
Katz, R.H., Gibson, G.A., and Patterson, D.A.,; Disk System Architectures for High Performance Computing (Mar. 1989).
Gray, J., Horst, B., and Walker, M.; Parity Striping of Disc Arrays: Low-Cost Reliable Storage with Acceptable Throughtput (Jan. 1990).
Schultz, M.E.; Considerations in the Design of a Raid Prototype (Aug. 1988).
Clark, and Corrigan; IBM Systems Journal, vol. 23, No.3, 1989.
Patterson, D.a., Gibson, G., and Katz, H.; A Case For Redundant Arrays of Inexpensive Disks (RAID).
Lee, E.K.; Software and Performance Issues in the Implementation of a RAID Prototype (May 1990).
Chen, P., Gibson, G., Katz, R.H., Patterson, D.A., and Schulze, M.; Introduction to Redundant Arrays of Inexpensive Disks (RAID (Dec. 1988).
Chen, P., Gibson, G., Katz, R.H., Patterson, D.A., and Schulze, M., et al. Evolution of the Raid 2 Architecture (Jun. 12, 1990).
Maximum Strategy, Inc., San Jose, CA; Strategy 2 Disk Array Controller Operation Manual (Nov. 2, 1988).
Maximum Strategy, Inc., San Jose, CA; Strategy 1 Disk Array Controller Operation Manual (Date unknown).
Brant William A.
Hohenstein Gerald L.
Bachand Richard A.
Chan Eddie P.
EMC Corporation
Kubida William J.
Nguyen Hiep T.
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