bks@timewarp.eng.ohio-state.edu (Brian K Smith) (02/16/90)
I am looking to hook up am IBM type hard drive to my ST. Does anyone know which type of drive (MFM, RLL, SCSI) is best for this application, and have information or schematics on how to build an interface? Thanks... -=- =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= And we'll have fun, fun, fun 'til our grade point takes the money away... bks@cis.ohio-state.edu Brian K. Smith =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
hcj@lzsc.ATT.COM (HC Johnson) (02/19/90)
In article <77220@tut.cis.ohio-state.edu>, bks@timewarp.eng.ohio-state.edu (Brian K Smith) writes: > > I am looking to hook up am IBM type hard drive to my ST. Does anyone > know which type of drive (MFM, RLL, SCSI) is best for this application, and > have information or schematics on how to build an interface? > You have to have an Atari to SCSI adapter, and a cabinet with power supply for for your drive. A SCSI drive will not require any additional hardware. Some SCSI drives have given the SCSI adapter folks some problems in programming. The MFM drives are cheapest, and usually have the least capacity. They require and Adaptec 4000A (or equivalent ) interface board. (the board speaks SCSI, and ST506, the interface to MFM and RLL drives. It can control 2 drives. You usually see MFM capacities in multiples of 20 mb. This can add $100-$150 to the cost. the RLL drives are stressed MFM's that yield 1.5 times the capacity. You usually see RLL capacities in multiples of 30 mb. You need an Adaptec 4070 (or equivalent) interface board. (about $150 ). Also, out there are faster ESDI drives. There is an Adaptec controller for these also, but for the price you are usually ahead to get an SCSI interface. The biggest, fastest drives are SCSI.