Patent ID: 6055582
Filing Date: 2000-04-25
Classification: G06F

Abstract:
A computer system adapted for selectively enabling a SCSI simplex mode and a SCSI duplex mode based on an indication of a desired SCSI mode, comprising:a processor;a primary SCSI controller coupled to said processor;a primary SCSI bus coupled to said primary SCSI controller;a primary set of SCSI devices coupled to said primary SCSI bus;a secondary SCSI controller coupled to said processor;a secondary SCSI bus coupled to said secondary SCSI controller;a secondary set of SCSI devices coupled to said secondary SCI bus in the SCSI duplex mode and coupled to said primary SCSI bus in the SCSI simplex mode; anda duplex-ready SCSI backplane board coupled to said primary SCSI controller, said secondary SCSI controller, said primary SCSI bus, and said secondary SCSI bus, comprising:SCSI duplex-ready logic for selectively enabling the SCSI simplex mode and the SCSI duplex mode;said SCSI duplex-ready logic joining said primary SCSI bus and said secondary SCSI bus as one electrical bus in the SCSI simplex mode; andsaid SCSI duplex-ready logic separating said primary SCSI bus and said secondary SCSI bus into independent electrical busses in the SCSI duplex mode.