Date: Sat, 9 Jan 1999 11:45:10 -0800 (PST) From: Julian Elischer <julian@whistle.com> To: Gabor Zahemszky <zgabor@cs.elte.hu> Cc: scsi@FreeBSD.ORG Subject: Re: SCSI problem Message-ID: <Pine.BSF.3.95.990109113544.8555C-100000@current1.whistle.com> In-Reply-To: <199901090011.BAA31756@neumann.cs.elte.hu>
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Hi! On Sat, 9 Jan 1999, Gabor Zahemszky wrote: > Hi, Julian! > > If I remember well, you wrote some of the FreeBSD's SCSI-driver. So here is > an interesting (for me, of course) problem: The scsi stuff I wrote is the old stuff now being replaced :-) > > I've got an ASUS SC200 PCI-bus SCSI-controller. It has NCR810 on it. On > it, there is a Plextor PX-4XCE CD-ROM, with id of 2. Worked well. Now, > I've bought a 2MB _wide_ SCSI disc, an IBM DCAS-32160W. I've got an 50->68 > adapter, so I can put it on the normal cable (as id 6). But if I boot with > these hardwares, the SCSI BIOS cannot identify them, and the FreeBSD boot will > generate so many errors, that it'll be about an hour to boot, and non of them > identified by it. Maybe it's a wrong card, or something. So i got for a > while an Adaptec 2840 - another _non-wide_ PCI-adapter. Only the CD -> OK. > Only the disk -> OK. Both of them: the same problem: neither the card's > BIOS, nor the BSD driver cannot identify the CD and the disc, and the boot > generates a ton of errors, and it's about an hour to boot. > is the disk SCAM compatible (check docs) id the CD SCAM compatible? SCAM is a scheme where the IDs are dynamically assigned. But all devices must be compatible with it. Most modern PCs try use SCAM these days in the BIOS. > So my questions: > can I put wide and normal peripherals on a normal controller? > If it's yes, can I put it onto my SC200, or I need to change the adapter (or > the disc)? > What on Earth can generates this problem? Unfortunatly I got out of the SCSI business before WIDE devices became popular, so I know very little about it.. My suggestion (In fact I will forward it) is to ask scsi@freebsd.org > > And another one: I've got an old SyQuest removable disc. On it there are > some defects. I tried to verify it with the Adaptec's BIOS utility, and it > remapped some tracks. After it I tried to format. The format failed. After > the failed format, I cannot make anything with it. Some hints? (I'm an > analphabet for SCSI, so pardon my silly questions!) I think you mean illiterate.. :-) > I really cannot help you much with this.. If the SCSI BIOS cannot handle this device it may be a bad sign.. have you tried a different cartridge? Maybe others have more information on this device.. BTW, 3.0 or 2.2.x? > Bye, Gabor > > PS: the most trivial answers are: > yes, terminators are OK > yes, both of them has parity enabled > yes, the IDs are different > To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-scsi" in the body of the message
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