Xref: utzoo comp.sys.atari.st:37893 comp.sys.atari.st.tech:2258 Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!usc!cs.utexas.edu!rutgers!gatech!prism!mailer.cc.fsu.edu!nu!boyd From: boyd@nu.cs.fsu.edu (Mickey Boyd) Newsgroups: comp.sys.atari.st,comp.sys.atari.st.tech Subject: Re: Weird TT hard disk thingy Message-ID: <1991May5.123222.14113@mailer.cc.fsu.edu> Date: 5 May 91 16:54:53 GMT References: <2917@atari.UUCP> <1991May1.143101.3904@mailer.cc.fsu.edu> <2925@atari.UUCP> Reply-To: boyd@nu.cs.fsu.edu (Mickey Boyd) Organization: Florida State University Computer Science Department Lines: 72 In article <2925@atari.UUCP>, apratt@atari.UUCP (Allan Pratt) writes: >boyd@nu.cs.fsu.edu (Mickey Boyd) writes: >>The DMA port on the back of the TT >>is handled differently than that on the various ST's, and this could cause >>an hard drive set up (and working) on an ST to fail (with very little >>explanation from the Atari HD software). > >A phrase like "The DMA port on the back of the TT" encourages >misunderstanding: there are TWO DMA ports on the back of the TT; one is >ACSI and one is SCSI, and you should make that distinction explicit when >you talk about the TT. Implicitly I am referring to the one which also exists on ST systems, which is the ASCI one. Are you telling me to be more up to snuff on my technical descriptions? Crack open an ST or TT manual sometime, and get your red pen out . . . . > >In any case, you are mistaken. A working setup on an ST will work fine on >a TT. What part of this conversation makes you think it won't? The only >oddity will be that SCSI drives (like the internal one), if present, will >have their partitions appear first in the sequence of drive letters. But >if you have a working chain of drives coming out of your ST, and you unplug >the end of the chain from the ST and plug it into the TT, all those drives >will be accessible and will work just fine. > Wrong. Here we go. Ok Allan, here is exactly what happened (for the third time :-). A working ST system: Mega4, laser printer, Supra Hard disk. The SCSI drive contained within the Supra is set to SCSI id 1. The ST does not mind this at all. Everything works. A TT system is purchased. The DMA cable connecting the Supra to the working ST setup is disconnected, and attached to the ASCI DMA port on the TT. The computer is booted. The Supra is invisible to the TT desktop, for no apparent reason. Nothing is stated in the manual. No error messages from the HDX software. What was really strange is that the Atari formatting software could see the Supra (and it was later used to format and partition it, to no avail). However, nothing could make those partitions show up in a window on the desktop. This was finally fixed by tearing the Supra apart and setting the SCSI disk contained within to SCSI id 0. The question WAS: why did this have to be done? It worked fine on the ST when set to SCSI id 1. Please do not answer this question. I don't care anymore. Nobody cares anymore. All of us that read all this bandwidth will carry the "set it to zero and try it" solution for the rest of our days. We will repeatedly tell new TT owners this when they post the "what the hell is wrong with my hard disk" question on c.s.a.st. This will just become one more such tidbit of information that is needed to have success with ST/TT's, and is not printed in the manuals that come with the computer(s). -- ---------------------------------+------------------------------------- Mickey R. Boyd | "Kirk to Enterprise. All clear FSU Computer Science | down here. Beam down Technical Support Group | yeoman Rand and a six-pack . ." email: boyd@fsucs.cs.fsu.edu | ---------------------------------+-------------------------------------