[Clusterusers] Wacky brownout

[Lee Spector]

Wow... I think I saw that dip in power if it was around 1:30... 

Has someone taken a look on the roof?!

 -Lee

On Dec 3, 2013, at 3:48 PM, Wm. Josiah Erikson wrote:

> There was a loud bang from the roof (I think the A/C unit, but unsure), and then we had a voltage drop or spike or something, and even though everything is on UPS, a random smattering of cluster nodes on different UPSes rebooted. That obviously shouldn't happen - I guess maybe those UPSes aren't as awesome as they should be... but it's the ones that I thought were the good ones that "failed" in this situation. Anyway, Tom, that's why some of your runs crashed - you should be able to restart them safely.
> 
> -- 
> Wm. Josiah Erikson
> Assistant Director of IT, Infrastructure Group
> System Administrator, School of CS
> Hampshire College
> Amherst, MA 01002
> (413) 559-6091
> 
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--
Lee Spector, Professor of Computer Science
Cognitive Science, Hampshire College
893 West Street, Amherst, MA 01002-3359
lspector at hampshire.edu, http://hampshire.edu/lspector/
Phone: 413-559-5352, Fax: 413-559-5438