Date: Wed, 28 Apr 1999 16:45:17 -0400 (EDT) From: "Christopher T. Johnson" <cjohnson@neunacht.netgsi.com> To: wilko@yedi.iaf.nl (Wilko Bulte) Cc: dillon@apollo.backplane.com, shocking@prth.pgs.com, current@FreeBSD.ORG Subject: Re: Further on tape & CAM problems Message-ID: <199904282045.QAA38050@neunacht.netgsi.com> In-Reply-To: <199904281938.VAA01921@yedi.iaf.nl> from Wilko Bulte at "Apr 28, 99 09:38:45 pm"
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> As Christopher T. Johnson wrote ... > > > REGARDLESS! > > The drive is reporting an error condition and that error is NOT > > getting back to user land. I've verified the problem with amdump > > Oh? Where/what is the error, does the console tell you? Sorry, no error reported, just the lights. Amber light, no green solid. Either the kernel has the device "active" OR it is an error indicator. Exabyte is known for doing that. > > > amflush and dd. In ALL cases once the amber light goes on solid > > systat -vmstat shows a solid 1.4MB/second data transfer into > > never never land. > > That sounds like a bug. But it could be CAM not understanding that the > 8200 firmware went to Nowhere-land. If I got a dime for each Exabyte > lockup.. Yep, been there done that. But these drives have been rock solid. It is not the case of putting in a new, unknown drive and finding out that it is a little strange. It is the case where I have a hardware configuration that has been stable that suddenly isn't. The original change is the upgrade to 4.0-CURRENT. After that drive "failed" I took our back up drive and put it into production and got exactly the same failure mode. Here is the sequence that I just did: Old working tape. mt erase & 1hr 30minutes or so later Drive makes sounds of tape stopping. Amber light comes on mt erase reports done (no errors) mt rewind mt: /dev/nrsa0: Device busy push button on face plate amber light goes out, tape noises. Green light comes on. mt rewind tape is ejected at the same place as all the other failures. push tape back into drive Drive is ejected. manually rewind tape (Yeah Yeah, I know don't do it but the exabyte ejects the tape each time it is reinserted until I have it mostly rewound) repeat with new tapes old tapes and almost new tapes.... Same thing Chris > > Groeten / Cheers, > > | / o / / _ Arnhem, The Netherlands - Powered by FreeBSD - > |/|/ / / /( (_) Bulte WWW : http://www.tcja.nl http://www.freebsd.org > To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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