Data Center testing

Seth Mattinen sethm at
Mon Aug 24 17:40:42 CDT 2009

Deepak Jain wrote:
> Thanks for the kind words Ken.
> Power failure testing and network testing are very different disciplines. 
> We operate from the point of view that if a failure occurs because we have scheduled testing, it is far better since we have the resources on-site to address it (as opposed to an unplanned event during a hurricane). Not everyone has this philosophy. 
> This is one of the reasons we do monthly or bimonthly, full live load transfer tests on power at every facility we own and control during the morning hours (~10:00am local time on a weekday, run on gensets for up to two hours). Of course there is sufficient staff and contingency planning on-site to handle almost anything that comes up. The goal is to have a measurable "good" outcome at our highest reasonable load levels [temperature, data load, etc].

At least once a year I like to go out and kick the service entrance
breaker to give the whole enchilada an honest to $diety plugs out test.
As you said, not recommenced if you don't maintain stuff, but that's how
confident I feel that my system works.


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