Notice of upcoming power maintenance @ Redwood City Data Center

Peter Losher plosher at
Thu Sep 3 07:21:31 UTC 2009

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In a effort to keep ahead of ever growing power usage at our Redwood City
Data Center, ISC will be performing a test, and a maintenance window to
upgrade a breaker feeding our server rooms.  In more detail:

On Friday, September 4th @8am Pacific Time, ISC Ops will run a generator
test for about a hour - There should be no outages because of this test.

On Tuesday, September 9th @8am Pacific Time, ISC Ops will have a hour
long window where we will upgrade a main breaker circuit.  During that
time, most of our server rooms will be rerouted to generator power with
only a 30 sec blip as we switch off and then back on mains power where
the UPS' will cover that gap.  For anything that isn't on UPS, it will be
shut down.

There are a couple of server rooms that will be hard down during this
work due to how they are wired into the grid; those guests that are
affected will be contacted directly for further details. as always will have updates as we make progress.

If there are any questions, contact us at hands at

Best Wishes - Peter
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