nanog mailing list archives

Re: MAE-East still no generator


From: "Jeff Young" <young () mci net>
Date: Sun, 08 Sep 1996 21:31:42 -0400

oh, boy.

let's make billions of dollars of battery backed up, dc powered
facilities and force them to install ac backup.  and all in the 
name of the all-mighty internet.  

telco facilites use dc power because it's the most efficient.
dc powered equipment isn't that hard to come by.  what's the
dc power option on a cisco 75xx?  about $350?

Jeff Young
young () mci net

To: Paul A Vixie <vixie () wisdom home vix com>
cc: nanog () merit edu
Subject: Re: MAE-East still no generator 
Date: Sun, 08 Sep 1996 12:19:46 -0400
From: "Perry E. Metzger" <perry () piermont com>
Sender: owner-nanog () merit edu
Content-Type: text
Content-Length: 418


Paul A Vixie writes:
In other words, its silly for them not to have UPSed AC available.

i agree with this but it can't be exclusive.  that's why dec's palo alto
facility has both AC and DC, each of which is UPSed and generatored.

Both is fine. Lots of telco equipment likes DC. However, having
insufficient quantities of AC to meet the demand is what I think is
silly. Installing UPSes isn't hard.

Perry


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