linuxaudio.org

On Sun, Jul 18, 2010 at 02:37:54PM +0200, Jörn Nettingsmeier wrote:
> it can't be totally sealed, as that would require an expensive

quoted text
> gasket. my guess is that the way servers are designed, air is drawn

> in through the front (the "cold aisle" in datacenter lore), and

> expelled through the rear (the "hot aisle"). after some years of

> use, it's not so unlikely for gunk to accumulate pretty much

> anywhere in the path of the airflow.

> and the conductivity of pure industry-strength gunk should never be

> underestimated.

Yes, dust will accumulate everywhere. But this switch was well

outside the normal airflow paths, and the outside was clean.

The 'dirt' was indeed a thin film, as Gene suggested.
The machines are configure to reboot after a power failure,

but not if they think they have been switched of manually,

which was what happened.
Meanwhile the second ADI-648 power supply has gone, as the

first one during a night with several city-wide power cuts.

I'm not really impressed by that very big UPS. Or there is

something wrong with its installation.
Ciao,
--

Je veux que la mort me trouve plantant mes choux, mais

nonchalant d’elle, et encore plus de mon jardin imparfait.

(Michel de Montaigne)

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