[133074] in North American Network Operators' Group
Re: Want to move to all 208V for server racks
daemon@ATHENA.MIT.EDU (Kevin Stange)
Fri Dec 3 19:35:09 2010
Date: Fri, 03 Dec 2010 18:34:04 -0600
From: Kevin Stange <kevin@steadfast.net>
To: Matthew Petach <mpetach@netflight.com>
In-Reply-To: <AANLkTimWxs+SBbEd_NWpHaHvaiphXEZfYS+3F9yGsU8D@mail.gmail.com>
Cc: Alex Rubenstein <alex@corp.nac.net>, NANOG list <nanog@nanog.org>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
This is an OpenPGP/MIME signed message (RFC 2440 and 3156)
--------------enigB15C91C1C2790C49F37754C3
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: quoted-printable
On 12/03/2010 03:21 PM, Matthew Petach wrote:
> On Thu, Dec 2, 2010 at 8:58 PM, Alex Rubenstein <alex@corp.nac.net> wro=
te:
> ...
>> Anyway, back to topic: Vendors, please a) get all your gear to cool fr=
ont-to-back, and b) let it take 480 polyphase and not require a neutral. =
I, for one, will be happier. The datacenter of tomorrow (hell, today) req=
uire this.
>>
>=20
> People are still feeding their gear with AC? Save on PS inefficiency,
> and feed direct 12/5vDC to the servers. Save space, save power,
> save cooling.
If you're already in a datacenter, getting 208V AC from an existing AC
infrastructure is a lot easier, cheaper, and sometimes more plausible
than building a DC plant. If you have your own facility, it's a
different story, but if you do colo, you probably have more customers
expecting AC than DC, so you'll at least need to maintain both
infrastructure.
--=20
Kevin Stange
Chief Technology Officer
Steadfast Networks
http://steadfast.net
Phone: 312-602-2689 ext. 203 | Fax: 312-602-2688 | Cell: 312-320-5867
--------------enigB15C91C1C2790C49F37754C3
Content-Type: application/pgp-signature; name="signature.asc"
Content-Description: OpenPGP digital signature
Content-Disposition: attachment; filename="signature.asc"
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.11 (GNU/Linux)
Comment: Using GnuPG with Fedora - http://enigmail.mozdev.org/
iEYEARECAAYFAkz5jHwACgkQkd/BoeKjg0hPsACcDamVBLoYGiC0bLITMwJVqn+l
5hgAn326stNHJVg4d+a4Qs4QFcIPJtsS
=Sy/q
-----END PGP SIGNATURE-----
--------------enigB15C91C1C2790C49F37754C3--
