[133088] in North American Network Operators' Group
Re: Want to move to all 208V for server racks
daemon@ATHENA.MIT.EDU (Joel Jaeggli)
Fri Dec 3 23:09:08 2010
In-Reply-To: <4CF9BD44.6090803@jima.tk>
From: Joel Jaeggli <joelja@bogus.com>
Date: Fri, 3 Dec 2010 20:10:38 -0800
To: Jima <nanog@jima.tk>
Cc: "nanog@nanog.org" <nanog@nanog.org>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
Your battery stack isn't like 12v either, unless it's one battery.
Joel's widget number 2
On Dec 3, 2010, at 20:02, Jima <nanog@jima.tk> wrote:
> On 12/3/2010 9:25 PM, Matthew Petach wrote:
>> (OK, so it's not as practical when you have other customers to worry
>> about... but it might not be so crazy when you're looking at the
>> efficiency numbers for 100,000 small 1u power supplies vs a set
>> of much larger ones.)
>=20
> Particularly if you're running your AC power through UPSes -- especially o=
nline ones (where there's a constant AC-DC-AC conversion happening). Go to D=
C for the batteries, never come back. It's a tempting notion.
>=20
> Jima
>=20
