Date: Wed, 26 May 1999 19:02:41 -0400 (EDT) From: "Eric D. Fehr" <fehr@idirect.com> To: "Justin T. Gibbs" <gibbs@narnia.plutotech.com> Cc: scsi@FreeBSD.org Subject: Re: Errors w/Quantum drives (LVD), Ultra2SCSI, 3.1 & 3.2 Message-ID: <Pine.BSF.4.10.9905261858490.63286-100000@proteus.idirect.com> In-Reply-To: <199905262242.QAA03657@narnia.plutotech.com>
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After switching the drives from the Ultra2 channel to an Ultra channel (to force them to run at 40/20), they are giving errors related to dscheck. What exactly is a negative b_blkno? I've found the section of code in the kernel that this is generated by, but it isn't extremely obvious to me what exactly causes it. dsckeck: negative b_blkno -1873515648 I'll give Quantum a call and see what they have to say, as this has happened on at least 4 drives of the same model number, with two different firware versions. Thanks, Eric On Wed, 26 May 1999, Justin T. Gibbs wrote: > In article <Pine.BSF.4.10.9905261601550.60127-100000@proteus.idirect.com> you wrote: > > Has anyone else experienced ongoing hardware read errors with this > > configuration? > > > > We're getting it with four different drives (same model), 3 different SCSI > > cables (running at 80MB/second), 3 different motherboards (Gigabyte and > > ASUS, Adaptec 7890 controller), 3 different terminators (active), and it > > is really starting to annoy me: > > > > (da1:ahc0:0:1:0): READ(10). CDB: 28 0 1 b8 11 f 0 0 80 0 > > (da1:ahc0:0:1:0): MEDIUM ERROR info:1b8117c csi:18,21,58,1d asc:11,0 > > (da1:ahc0:0:1:0): Unrecovered read error sks:80,98 > > CAM is only reporting what the drive has told us. This is not > a cable or termination or problem, but I suppose it could be a > drive firmware bug. There's very little anyone but the device > can do about reading the physical media and that is what the > complaint is about. > > Call Quantum tech support and give them the asc/ascq pair for the > error (11, 0) that the drive is reporting. New devices should not > be constanly reporting read errors unless you have a heat or other > environment problem. > > -- > Justin > To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-scsi" in the body of the message
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