[ale] power

JD jdp at algoloma.com
Mon Sep 8 17:52:21 EDT 2014


On 09/08/2014 01:20 PM, Jim Kinney wrote:
> What power outage gear is being used at home by ALE? At work by ALE people?

Dual 1500VA cyberpower UPS for the CPUs, Arrays, networking and telephony stuff.
No monitors or printers are on battery - there are enough portable devices here
to make that a non-issue.

In the last 15+ yrs here, there hasn't been any outage longer than 10 minutes except
* 1 thunderstorm around 2002 that knocked out power for 4 hrs
* replacement of the house meter in 2009-ish - down for about 30 min.

Batteries will last just over 30 min with the stuff I have on it today. If you
don't have high end GPUs, it is amazing how little power is actually used - 240W
for 4 boxes - not counting laptops/netbooks/tablets or stuff outside "the core". ;)

All utilities are underground for the neighborhood and I'm near the entrance, to
only 2 idiots might dig the 4 ft down to hit the fibre that terminates at the
box in my yard.

Network outages are a completely different issue.  Comcast was out for 2 hrs
Saturday and again for 10 min overnight.  Usually it isn't a big deal, but
sometimes it is.



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