Date: Wed, 14 Oct 1998 16:26:35 -0600 (MDT) From: "Kenneth D. Merry" <ken@plutotech.com> To: smace@intt.ORG (Scott Mace) Cc: cvs-committers@FreeBSD.ORG, cvs-all@FreeBSD.ORG, martin@tdc.on.ca Subject: Re: cvs commit: src/sys/cam cam_xpt.c Message-ID: <199810142226.QAA12957@panzer.plutotech.com> In-Reply-To: <199810142212.RAA21293@metal.intt.org> from Scott Mace at "Oct 14, 98 05:12:49 pm"
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Scott Mace wrote... > > ken 1998/10/14 14:17:40 PDT > > > > Modified files: > > sys/cam cam_xpt.c > > Log: > > Disable tagged queueing for the Seagate Elite 9GB drives. They tend to get > > hung up when you send tags to them too quickly. (CAM is able to recover > > from the problem, but this just avoids it altogether.) > > > > Reviewed by: gibbs > > Reported by: Bret Ford <bford@uop.cs.uop.edu> > > and: Martin Renters <martin@tdc.on.ca> > > > > Revision Changes Path > > 1.21 +10 -1 src/sys/cam/cam_xpt.c > > > > This is odd, I have 2 elite 9's and they run fine > with tagged queuing. What rev are the drives that fail? > What are the symptoms exactly (maybe they don't run fine ?@?) Well, Bret Ford reported the following inquiry info: SEAGATE ST410800N 7110 Martin Renters hasn't yet sent me dmesg information. What firmware revision do you have? The symptoms are that the drive just kinda locks up after heavy I/O. We hit it with a BDR after a minute and it comes back. > In fact without tagged quueing they have very slow performance. I'm sure they do. If we can track it down to a specific firmware revision, we can narrow the quirk entry a little more. Ken -- Kenneth Merry ken@plutotech.com To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe cvs-all" in the body of the message
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