[116879] in North American Network Operators' Group
RE: Data Center testing
daemon@ATHENA.MIT.EDU (Deepak Jain)
Mon Aug 24 18:51:22 2009
From: Deepak Jain <deepak@ai.net>
To: Seth Mattinen <sethm@rollernet.us>, NANOG list <nanog@nanog.org>
Date: Mon, 24 Aug 2009 18:50:13 -0400
In-Reply-To: <4A9316EA.3050409@rollernet.us>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
> 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.
Nature has a way of testing it, even if you don't. :)
For those who haven't seen this occur, make sure you have a plan in case yo=
ur breaker doesn't flip back to the normal position, or your transfer switc=
h stops switching (in either direction -- for example, it fuses itself into=
the "generator/emergency" position).
For small supplies (say <1MW) it's not as big a deal, but when the breakers=
in a bigger facility can weigh hundreds of pounds each and can take months=
to replace, these are real issues and will test your sparing, consistency =
and other disciplines.
Deepak Jain
AiNET
