Date: Thu, 29 Jun 2000 12:53:05 -0600 From: "Kenneth D. Merry" <ken@kdm.org> To: Andre Albsmeier <andre.albsmeier@mchp.siemens.de> Cc: freebsd-scsi@FreeBSD.ORG Subject: Re: Curiuos Problem with CAM and a 2940U2W with several devices Message-ID: <20000629125305.A61135@panzer.kdm.org> In-Reply-To: <20000629080730.A66792@curry.mchp.siemens.de>; from andre.albsmeier@mchp.siemens.de on Thu, Jun 29, 2000 at 08:07:30AM %2B0200 References: <20000629080730.A66792@curry.mchp.siemens.de>
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On Thu, Jun 29, 2000 at 08:07:30 +0200, Andre Albsmeier wrote: > I have a really curious SCSI problem here and I think it is not > CAM/FreeBSD related but I just want to be sure... > > This is an Adaptec 2940U2W controller. > > The external LVD connector is unused. The internal LVD connector > has 2 IBM DNES-318350W LVD drives and a LVD terminator at the end > of the cable. The LVD terminator of the 2940U2W is set to on. > So the LVD segement is terminated properly. > > The 50-pin (8bit) single ended connector has a SEAGATE ST31230N > drive and a PIONEER CD-ROM DR-766 1.00 cdrom drive attached to it. > On the end of this cable is an active 50-pin SE terminator. > The 68-pin (16bit) single ended connector has a IBM DDRS-34560W > connected to it. On the end of this cable is an active 68-pin SE > terminator. The SE terminator of the 2940U2W is set to LOW/Off > and HIGH/On. > So the SE segment is terminated properly. > > The cable lengths are below 1 meter. I have changed them. I have > replaced the external terminators. I have set the 2940U2Ws > terminators to automatic. I have lowered the transfer speeds for > the SE devices. I have removed the CDROM. > > I still get these SCSI Error messages. > > I might think this is due to the old SEAGATE drive in there but I > am not sure. When removing the DDRS-34560W and correcting the > termination accordingly, the system ran fine for a long time. Now I > just wanted to replace the SEAGATE drive with the bigger DDRS-34560W > but as soon as I connect it to copy the stuff over, the problems > start. > > Here is the dmesg with the relevant parts. > > Maybe someone (Ken ?!? :-)) can give me a hint about this. As far as I can tell, you've done all the normal things to isolate the problem. It could be a problem with the Seagate drive, since that is the drive the Adaptec driver is complaining about but I don't know what that problem is. This is probably something that Justin will need to look at. Ken -- Kenneth Merry ken@kdm.org To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-scsi" in the body of the message
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