[c-nsp] Multiple power supply failures. Advise needed

Michael Ulitskiy mulitskiy at acedsl.com
Tue Sep 1 12:17:57 EDT 2009


After a little pause it started happening again and we lost 2 more power supplies 
(this time in servers) during last week.
Can anybody advice on a good organization that could do independent power analysis 
in New York, NY?
Thank you,


On Friday 14 August 2009 09:56:00 pm you wrote:
> Michael Ulitskiy wrote:
> > Hello,
> > 
> > We have a very strange problem. We have recently changed colo-space provider and since that 
> > we had 4 power supply failures in all kind of cisco equipment within 2 month period.
> > According to colo provider we're receiving "clean" power backed up by UPSes and generator.
> > We're currently have 4 20-amps circuits with APC managed PDUs in them and power supply failures 
> > happened in 3 of them, so I can't blame it to one specific circuit or PDU.
> > There was no environmental warning in the logs of any cisco devices. 
> > I'm completely out of the clues. I'm going to bring it up with our colo-space provider, but I'm afraid
> > they'll need some proof or pointers.
> > Does anybody have any ideas what could be causing this and how I can monitor the specific conditions?
> > Thanks,
> > 
> If you're having power supplies cook off like that for no apparent
> reason, I'd get an independent analysis of the power being fed to my
> outlets.
> ~Seth

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