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Ok Ok.   It was during setup and configuration.  The 520 was shipped to
a hosted data center where it will be attached to two PDU's.  The rest
is up to the cyber center.  An the UPS was capable of running the 520 on
one power supply, even with the 3 Dell server on it, but the 520 would
not boot with both power supplies on the UPS, even when it was the only
device. 


Christopher Bipes
Information Services Director
CrossCheck, Inc.

-----Original Message-----
From: midrange-l-bounces@xxxxxxxxxxxx
[mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of
ChadB@xxxxxxxxxxxxxxxxxxxx
Sent: Tuesday, May 30, 2006 10:19 AM
To: Midrange Systems Technical Discussion
Subject: Re: Redundant Power


Makes sense.  Our setup would offer redundancy only to the point of the
UPS.  We would have dual power supplies, dual line cords, dual PDUs in
the rack, but both PDUs would plug into the same UPS.  Not an ideal
level of protection, but it would protect from some common things like
failed power supplies, and damaged (or yanked!) cables.

Splitting the 2 supplies between a UPS and a wall plug sounds like
trouble all around!


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