Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!uunet!world!lucifer
From: lucifer@world.std.com (Kevin S Green)
Newsgroups: comp.sys.apple2
Subject: Re: Best hard drive combo
Message-ID: <1991Jun26.222608.12111@world.std.com>
Date: 26 Jun 91 22:26:08 GMT
References: <4774.apple.a2.net@pro-nbs>
Organization: The World @ Software Tool & Die
Lines: 30

In article <4774.apple.a2.net@pro-nbs> asong@pro-nbs.cts.com (Andi Song) writes:
[...]
|        How do you IIgs hard-drivers do it? Is there a way to instruct the
|CPU to wait for the hard drive to warm up and come on-line (maybe a few
|seconds pause), THEN look in the other slots? How can you make the hard
|drive boot up first if your hard drive is a bit slow getting out of bed?

Quote from pg 59, "Apple II High-Speed SCSI Card Owner's Guide":
"The Apple II High-Speed SCSI card comes with the SCSI ID number
preset to 7. And for almost all uses, this is the best ID number
to use for the computer. However, there may be occassions when
you need to reset the computer's SCSI ID number. For instance,
when you attach an Apple LaserWriter IIsc or an Apple Scanner
by itself to your computer, you need to reset the computer's ID
number to 2. This provides a delay of three seconds in the 
startup process - a delay needed by these devices so they can be
ready to respond to the computer when it scans for available 
devices on the SCSI chain."

This is exactly what I have done, but for my MicroNet MP100
HD. The Apple SCSI card is in slot 6 and the Control Panel
is set to boot into slot 6. The drive has enough time to
come up to speed and then the boot process begins.

As for scanning, the computer is scanning for the first 
available disk that has a usable operating system on it.
This is true for both the Mac & Apple //. {I know because
my Mac at work has to wait until the HD comes up to speed.}
-- 
Kevin S. Green / lucifer@world.std.com / {xylogics;uunet}!world!lucifer