berger@clio.las.uiuc.edu (03/15/88)
According to the official SCSI document from the standards committee, the SCSI bandwidth is about 1.5 megaBYTES/second. ESDI is somewhat faster. Some implementations of SCSI have been discussed that run at twice the nominal speed, but I'm not sure there are any in operation. The actual throughput from a SCSI device also depends on how you've implemented the protocol. Most off-the-shelf SCSI devices seem to hold the bus and wait until your request can be served, although the specification allows the device to release the bus and request it again when ready. This will certainly slow things down. In any case, your original figures are in conflict with my data. Mike Berger Department of Statistics Science, Technology, and Society University of Illinois berger@clio.las.uiuc.edu {ihnp4 | convex | pur-ee}!uiucuxc!clio!berger