error: uqssp0 being reset

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In article <2119 at wor-mein.UUCP>, dave at wor-mein.UUCP (Dave Axness) writes:
> I have a uVAX II running Ultrix 1.2 (no flames please).  While doing a
> dump over the ethernet to an Exabyte on a SUN, I get the following message
> on the console
> 
> 	uqssp0 being reset
> 
> The system is hung and has to be rebooted.
> 
> Can someone give me a clue as to what this error message might mean.

	The host expects to see activity from the disk controller
	within some timeout period.  If there isn't any activity
	it resets the controller and prints the message mentioned.
	What should happen is that the controller wakes up and goes
	on doing work.  Wha I've usually seen is that the controller
	never somes back, hence the hung system.

	It's almost certainly a hardware problem.

	UQSSP was the name of DSA protocol for talking to UNIBUS
	and Q-bus controllers.  The U and Q are UNIBUS and Q-bus,
	the rest is Storage System Port.  The controllers at the
	time of V1.2 that used UQSSP were the RQDX series, the
	UDA50, KDA50 and KDB50.  The integral controller of the
	RC25 was also a UQSSP port.  More recently the KDM70 was
	added to the family and the name changed to SSP since it 
	had controllers on the VAXBI and XMI.
	
> 
> Thanks,

	You're welcome.
> 
> Dave Axness
> dave at qms.com  -or-  uunet!wor-mein!dave


-- 
Alan Rollow				alan at nabeth.cxn.dec.com