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From: alan@shodha.dec.com ( Alan's Home for Wayward Notes File.)
Newsgroups: comp.unix.ultrix
Subject: Re: uq0 being reset
Summary: Consider the disk controller.
Keywords: ultrix, microvax, rd53, hard error
Message-ID: <707@shodha.dec.com>
Date: 12 Feb 90 21:59:13 GMT
References: <3888@ucrmath.UCR.EDU>
Distribution: na
Organization: Digital Equipment Corp. - Colorado Springs, CO.
Lines: 36

In article <3888@ucrmath.UCR.EDU>, russ@mays.ucr.edu writes:
> We have a VAXstation II running Ultrix 2.0 with
> a TK50, and two RD53 drives (one recently added).
> From time to time console messages appear saying
> 	Force Error Modifier set LBN ......
> 	ra1g: hard error sn .....

> Lately these have been increasing, so I did a dump
> of ra1g, newfs and restore.  The restore died
> with
> 	uq0 being reset

	The "uq" mentioned is the disk controller.  For some
	reason ULTRIX didn't get any response from a command
	it gave to the controller so reset it.

	The two most likely causes are:

	1.  The disk is dead (*).  You might try reformatting it,
	    but that will probably only hang the diagnostics.

	2.  The disk controller is sick or dead.  If you can still
	    access the other disk then it may only be sick.  If
	    you have a Field Service contract give them a call and
	    suggest that the disk controller is broken.

> Thanks,
> Russ Harvey
> russ@ucrmath.ucr.edu
> {ucsd,uci}!ucrmath!russ

	* Refer to the Monty Python "Dead Parrot" sketch for more 
	  information about this type of "dead".

-- 
Alan Rollow				alan@nabeth.enet.dec.com