[Info-vax] SHADDETINCON, SHADOWING detects inconsistent state
H Vlems
hvlems at freenet.de
Thu Jan 1 13:08:57 EST 2009
On 1 jan, 18:03, hel... at astro.multiCLOTHESvax.de (Phillip Helbig---
remove CLOTHES to reply) wrote:
> In article
> <6989d626-4fde-4f08-90aa-81c3b2234... at e1g2000pra.googlegroups.com>, H
>
> Vlems <hvl... at freenet.de> writes:
> > Actually I don't think power is an issue. Phillip lives in Germany and
> > mains power is rather reliable.
>
> Indeed. I don't remember having an outage since I've lived here.
>
> > My suggestion would be to have a good look at the network. The systems
> > mentioned are all
> > 10 Mb/s systems. So they're connected with thinwire coax or have UTP
> > transceivers on their AUI ports.
>
> The latter in the case of the VAXes, the former in the case of the
> ALPHA.
>
> > (Unless Phillip runs a 10BASE5 "classic" ethernet in his house, which
> > I doubt :-)
>
> Actually, I have such cables, but I've never used it.
>
> > Thinwire cables may go bad and so may transceivers fail. As I read the
> > original post, the number of errors seems
> > to increase over time which indicates failing hardware.
>
> The number of errors (e.g. $ SHOW ERROR) remains constant, but the
> failures have become more frequent.
>
> > Look at the error counters of other protocols, such as LAT, DECnet or
> > IP. Especially LAT since it is very sensitive to problems
> > in the physical layer and may provide you with clues.
>
> Such errors look OK.
>
> I've now made the swap. We'll see what happens!
Umm, what exactly did you swap?
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