Well, one thing, you do have to increase the System Heap before doing these kind of peregrinations with a Mac Plus...I think I may have set mine as high as 128K on a 4 mb machine.
Stephen
As promised, I went into my workshop today and set up a Mac Plus for initializing a 1 gig hard disk.
I started with a Quantum 40MB disk for test-purposes. Easy. Used the Apple HD/SC Setup.
Then I moved on to an Apple Rommed Quantum 500MB drive. The one from my Performa 6118. No Term Power jumper. But I had a terminator on the external hard disk case.
Drive kept making the Plus reboot. With the terminator on or off the Bus.
I moved on to a Seagate 1 GIG. Term Power jumpers set.
Interestingly, ALL 7 SCSI formatting programs I used were unable to format the drive with a 3:1 interleave. The Mac Plus hasn't enough memory for it to happen. I errored-out all over the map:
Apple HD/SC Micronet SCSI Utility Micronet v7.2 CMS Utilities FWB HD Tool Kit 1.0 FWB Toolkit 1.7.5 Alliance Power Tools
The one I used secondly, the Micronet SCSI Formatter v7.2 would quit with an error message, and when I rebooted, the Plus's Toolbox Routine kicked in and told me the hard disk needed initializing. I let it. But it didn't offer me a choice of interleaves. It picked 1:1, I guess, because after initializing it mounted to the desktop with the icon I chose in the formatting process, before the halt-on-error.
I copied System 6.0.8. System Folder to the hard disk and rebooted.
Got Mark's question-over-floppy icon.
Moving to FWB HDTK, it errored out telling me it needed 12k or RAM to initialize and interleave the 1 GIG HD to 3:1. The Plus has 4k.
I took out my IIcx. Trying to format/interleave the 1 gig hard disk to 3:1, I was given an error message that the drive would not allow that interleave.
So......it would seem that, unless there's a 1 gig drive out there that allows 3:1, the Plus won't work with 1 gig drives.
Mark? You're not crazy. This may NOT be doable......
Jeff
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