Re: Mae-WEST

[Karl Denninger <karl () Mcs Net>]

On Fri, Jul 11, 1997 at 08:39:08PM -0700, Michael Dillon wrote:
> At 8:20 PM -0400 7/11/97, Alex Rubenstein wrote:
> > According to nitrous.digex.net for its mae-west router:
> >
> > card     inlet       hotpoint     exhaust
> > RSP(4)   26C/78F      38C/100F     44C/111F
>           ^^^^^^^
> This is the problem. MFS doesn't have proper cooling if the air if the
> ambient air is this hot. It should be no higher than between 15C and 18C in
> an equipment room like that.
>
> ********************************************************
> Michael Dillon                    voice: +1-415-482-2840
> Senior Systems Architect            fax: +1-415-482-2844
> PRIORI NETWORKS, INC.              http://www.priori.net
>
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> ********************************************************

Michael, c'mon...

15-18C?  19C is 66F -- that's very acceptable.  15C would be 59F!

In fact, 68F (at 40% RH) is pretty "standard" for most equipment rooms.  
We're config'd for a setpoint of 67F +/- 1F and 40% RH +/- 3%.

One of our more heavily loaded 7513s shows at present:

 card     inlet       hotpoint     exhaust
RSP(6)   19C/66F      29C/84F      25C/77F

That's right where it should be.

BTW, exhaust temperature above hotpoint (which your stats show) is *not* a 
good thing.  I'd find out what's going on there -- you may have some kind 
of obstruction with the airflow.

--
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