Data buss interface and expansion system

Details Data buss interface and expansion system Data buss interface and expansion system

1992-01-10

1994-07-26

Chun, Debra A.

Boots, shoes, and leggings

364DIG2, 36492793, 36493546, 36493548, 36494081, 3649513, G06F 1342

Patent

active

053332776

ABSTRACT:
A Buss Interface and Expansion System, which attaches to a SCSI buss provides, means for increasing the number of devices which can be attached to the buss, provides means for data compressing and decompressing data, and means for use by a host computer attached to the SCSI buss for allowing existing SCSI drives to expand their storage capacity. The disclosed system also provides means for enabling an attached drive to mirror another attached drive, means for creating virtual drives out of devices attached to the peripheral computer, and means for using RAID algorithms on groups of drives attached to the peripheral computer. The disclosed system provides the aforereferenced features while requiring only minimal modifications to the software running on a host system. Through use of electronically reprogrammable storage means, the disclosed system can be updated and reprogrammed by the host computer. General purpose processor means are included in the disclosed system along with the reprogrammable storage means for expanding the capabilities beyond those implemented in the preferred embodiment. Additional features offered by the disclosed system include data buffering between host and devices attached to the host's data buss, and also include means for providing communication capability between the host and disk drives even when the two use incompatible connectors.

REFERENCES:
patent: 5006981 (1991-04-01), Beltz et al.
patent: 5101478 (1992-03-01), Fu et al.
patent: 5123092 (1992-06-01), Buxton et al.
patent: 5129036 (1992-07-01), Dean et al.
patent: 5138703 (1992-08-01), Igarashi
patent: 5148389 (1992-09-01), Hughes
patent: 5218681 (1993-06-01), Gephardt et al.

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