Path: utzoo!attcan!sobmips!uunet!cs.utexas.edu!swrinde!ucsd!ucbvax!hplabs!hp-pcd!hpcvca!charles From: charles@hpcvca.CV.HP.COM (Charles Brown) Newsgroups: comp.sys.amiga.tech Subject: Re: Apple SCSI not compatible with standard SCSI? Message-ID: <1410034@hpcvca.CV.HP.COM> Date: 15 Nov 89 18:10:03 GMT References: Organization: Hewlett-Packard Co., Corvallis, Oregon Lines: 32 > In a recent conversation with our lab manager, I was told that it is > possible that Apple's SCSI interface is not consistent with the SCSI > standard. > Andrew Thomas I have a Miniscribe (sorry I don't remember the part #) SCSI drive connected to a 2090A controller. The Miniscribe was billed as Mac compatible. It works on the A2000 except that it will not autoboot (not even from a warm boot). I assume it works with a Mac. I contacted Miniscribe and Commodore about this several times. The result was that Miniscribe was eager to talk to Commodore to work out the problem. Commodore showed no interest in talking to Miniscribe. The Commodore rep said the Miniscribe drive is not meeting the SCSI spec and that Commodore was NOT going to change the 2090A to work with it. The particular spec involved the time from reset to ready. The Commodore will not autoboot if that time is greater than (as I recall) four seconds. The Miniscribe appears (from my informal measurements) to take about 5 seconds if warm booting with the head on track 2, about 8 seconds if warm booting with the head near the middle track, and about 14 seconds from power up. I boot from floppy. I am not happy about this, but am not interested in tossing out a otherwise excellent drive. I am also not interested in buying an additional hard drive JUST for booting. -- Charles Brown charles@cv.hp.com or charles%hpcvca@hplabs.hp.com or hplabs!hpcvca!charles or "Hey you!" Not representing my employer. "The guy sure looks like plant food to me." Little Shop of Horrors