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From: russell@CINCOM.UMD.EDU ("CHRIS RUSSELL")
Newsgroups: comp.os.vms
Subject: LAVC related crashes, HELP?
Message-ID: <8710100033.AA08477@ucbvax.Berkeley.EDU>
Date: Fri, 9-Oct-87 11:09:00 EDT
Article-I.D.: ucbvax.8710100033.AA08477
Posted: Fri Oct  9 11:09:00 1987
Date-Received: Mon, 12-Oct-87 01:40:04 EDT
Sender: daemon@ucbvax.BERKELEY.EDU
Reply-To: "CHRIS RUSSELL" <russell@cincom.umd.edu>
Organization: The ARPA Internet
Lines: 58


(My apologies for posting, but I haven't gotten the knack of sending
to CSNET yet.)

>Having seen very few complaints about LAVC clusters, I am beginning to believe
>that we are the only site in the world with this problem.  Can anyone make
>us feel a little less alone.
>
>We are running the following (tiny) cluster:
>
> [Description of Cluster]
>
>We are running LAVC under VMS V4.5A and have been experiencing the following
>crashes on our MVII. As far as we can tell, at times when the disk traffic from
>the 750 to the MVII gets high. 

Mike,

	First of all, "NO", you are not the only person struggling with
an LAVC.  I went through Hell and back again to get our 7 satellite
LAVC up and running.  Especially since our boot node is an 11/750 which
is only supposed to handle 5 satellites... :-)

	I don't know if the problems we encountered are causing your
difficulties, but here's a couple of things to look out for that we
ran into:

	1)  The Rev Level on your Microvax DEQNA must be Rev E1 or
		later.  We were running on C2 DEQNAs, and things
		appeared to be working.  However, every once in a
		while, every satellite would lose touch with every
		other satellite, causing about 5 or 6 pages of
		console printout.  This happenned several times an
		hour.  Once we upgraded the DEQNAs, the problem
		went away.

	2)  The other thing I would suggest is that you get VMS 4.5C
		from DEC.  That's what we're running.  I really don't
		know the exact differences, but I do know that we are
		running 4.5C and it's running very smoothly now.

	Hope this helps.  

					~chris


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Christopher Russell              ARPA: SYSMGR@KING.EE.UMD.EDU
Operations Manager               JNET: RUSSELL@UMCINCOM
Computer Aided Design Lab        UUCP: ...!seismo!umcp-cs!eneevax!russell
University of Maryland           FONE: (301)454-8886/454-8950

        "If growing up were fun, I'd have done it already."

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