Date: Fri, 29 Jan 1999 15:18:33 -0800 (PST) From: Wes Santee <wes@bogon.net> To: onemo@jps.net (ONE-MO) Cc: freebsd-stable@FreeBSD.ORG Subject: Re: 2nd SCSI drive not detected. Why? Message-ID: <199901292318.PAA02399@bogon.net> In-Reply-To: <36B23BFF.FB8F3760@jps.net> from ONE-MO at "Jan 29, 1999 2:53:52 pm"
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And ONE-MO proclaimed... > Do you have proper termination of the 68pin channel. Wide-SCSI is > extremely sensitive to this and I find many people using > Fast-SCSI without a terminator don't notice problems until they > introduce a Wide drive into the mix. > > FWIW I have a 2940UW with two Ultra-Wide SCA drives using SCA to 68pin > converter. I couldn't access the second drive unless I enabled > termination on the second drives SCA converter. > Thanks for the tips. I made sure that termination is active on both drives since they are at either end of the SCSI bus. However, I noted that the Wide drive has 4 termination settings (5 if you include no termination). I'll do some research to make sure I've got the right *kind* of termination set, just to make sure. Still, even with improper termination, if the SCSI bus can see the drive, shouldn't the OS be able to? Improper termination would seem to lead to instability, but I would still expect the OS to see it's there since the SCSI adapter can see it. I'm just speculating here, however. Cheers, -Wes To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message
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