dragon@lfl.uucp (Give me a quarter or I'll touch you) (11/02/88)
From article <453@stag.math.lsa.umich.edu>, by hyc@math.lsa.umich.edu (Howard Chu): [...] > let the numbers fool you; they both format to about 300MB.) These are for > naked drives - to use on the ST, you also need to buy a power supply, some > cables, and a SCSI controller card. (Adaptec or Berkeley Micro Systems > seem to be the preferred names.) A case is also nice to put around it, and BMS only makes host adapters, they package the Adaptec controllers with their systems. Anyhow, if one is using a SCSI drive, a SCSI controller won't be necessary. If one uses an ESDI drive, the SCSI<->ESDI controller is necessary (Adaptec makes one, the number slips my mind at the moment. > you should find an ST-to-SCSI host adapter board. (As far as I can tell, > ICD and Supra's products are almost identical in this area. Although the > ICD disk driver does write verification, and the Supra docs don't mention > whether it does or not. Both have battery backed-up clocks on the adaptor > board. Seems like a waste to me. I kinda wish they sold a version of the > card that didn't have the clock - why pay for something I won't use? I > get a clock with my RAM upgrades... Plus, the ICD and Supra clocks take > up a logical unit number on the SCSI bus. Ah well...) I believe both clocks can be disabled (I know the Supra can) thus freeing up a SCSI device number (*not* a logical unit number). > -- > / > /_ , ,_. Howard Chu > / /(_/(__ University of Michigan > / Computing Center College of LS&A > ' Unix Project Information Systems --Dean! sun!pixar!r2d2!dragon