km@cs.pitt.edu (03/08/90)
I would be interested in hearing from anyone with experience using Newbury drives with the 154x series host adapters. I currently am using a Newbury 4380S (with 3380S rom) in a MacII. There are no problems under MacOS, but with the A/UX driver the drive exhibits timeouts after SCSI bus resets. I intend on moving the drive to a 386 machine with a 1542 host adapter, but I would like to know what I am getting into beforehand. Also, I need to know if enough technical information is included with the 154x adapters to write a driver, if it is necessary to tweak things for the Newbury. I have heard rumors of other people having trouble with the Newbury drives. -Ken Mitchum MD KY3B km@cs.pitt.edu
dyer@spdcc.COM (Steve Dyer) (03/08/90)
In article <7061@pitt.UUCP> km@cs.pitt.edu () writes: >I would be interested in hearing from anyone with experience using >Newbury drives with the 154x series host adapters. I currently am >using a Newbury 4380S (with 3380S rom) in a MacII. There are no >problems under MacOS, but with the A/UX driver the drive exhibits >timeouts after SCSI bus resets. I intend on moving the drive to a >386 machine with a 1542 host adapter, but I would like to know what >I am getting into beforehand. I'm using a 4380S with the Adaptec 1542A adapter on a RT PC. It works fine. There is a little bit of strangeness with the Newbury drives in that they return a "UNIT ATTENTION" status after a SCSI bus reset and a dummy MODE SENSE must be issued before it will recognize any commands. I believe this behavior can be changed permanently by issuing the correct sequence of MODE SELECT commands. -- Steve Dyer dyer@ursa-major.spdcc.com aka {ima,harvard,rayssd,linus,m2c}!spdcc!dyer dyer@arktouros.mit.edu, dyer@hstbme.mit.edu