Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!brutus.cs.uiuc.edu!apple!bloom-beacon!athena.mit.edu!dcw
From: dcw@athena.mit.edu (David C. Whitney)
Newsgroups: comp.sys.apple
Subject: Re: Apple SCSI question...
Message-ID: <13069@bloom-beacon.MIT.EDU>
Date: 28 Jul 89 00:42:31 GMT
References: <8907241550.aa12283@SMOKE.BRL.MIL>
Sender: daemon@bloom-beacon.MIT.EDU
Reply-To: dcw@athena.mit.edu (David C. Whitney)
Organization: Massachusetts Institute of Technology
Lines: 38

In article <8907241550.aa12283@SMOKE.BRL.MIL> ALBRO@NIEHS.BITNET writes:
>
>Ron Higgins <marque!carroll1!acct069@CSD4.MILW.WISC.EDU> writes:
>
>
>>I have a question concerning the Apple SCSI card and a SCSI hard drive on a
>>//gs.
>
>>You have to power up the Hard Drive, then the //gs in order to be able to
>>access the hard drive.
>
>>What I plan on doing is setting the //gs boot slot to 6 and boot off of a
>>5.25" floppy.  Load ProDOS, Basic.system, and then run a small startup file
>>that goes into a FOR NEXT loop till the hard drive has come up to speed,
>>then I'd like to be able to boot my BBS off of the hard drive, but
>>presently, the system just hangs if I try to access the HD.
>
>I had the same problem for the same reason (running a BBS).  The solution was

The problem runs deeper than this, though. I've noticed that once the
computer decides that the disk is offline, NOTHING will change its
mind. The only action that DOES work is power cycling the computer.
It's very odd: I usually leave my computer on and just switch off the
drive and monitor. If I fail to turn the drive on before attempting to
access it, I'm doomed. None of the standard tricks of "fooling" the
computer that it was power-cycled work (ie, control-option-OA-RESET,
and then a regular OA-control-RESET). I must actually kill power to
convince the system that the drive is on and ready.

Now, I've asked about this before, but it sort of melted away. Is
there anyone at Apple who a) can produce this odd behaviour and b)
know why it happens and c) has any ideas if it will get fixed (SCSI
rev D???)

Dave Whitney	A junior (well, a senior) in Computer Science at MIT
dcw@athena.mit.edu  ...!bloom-beacon!athena.mit.edu!dcw  dcw@goldilocks.mit.edu
I wrote Z-Link & BinSCII. Send me bug reports. I use a //GS. Send me Tech Info.
"This is MIT. Collect and 3rd party calls will not be accepted at this number."