Jerry Draper wrote:
> Our BP configured our new i% 520 with a redundant power supply
> and fan for an additionsl $1300.  Is this really necessary
> considering we have a big pallet of deep cycle batteries giving
> us an hours of battery backup?   

I usually hook the first PSU on the UPS, and the second PSU on a normal,
unprotected line. This guards against UPS failures. And of course
against a PSU failure.

I've been using Dual-PSU's in all my bigger PC servers, and see no
reason to not use this practice on the i5.


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