Re: Want to move to all 208V for server racks

[Joel Jaeggli <joelja () bogus com>]

On Dec 3, 2010, at 16:58, Valdis.Kletnieks () vt edu wrote:

> On Fri, 03 Dec 2010 13:21:07 PST, Matthew Petach said:
> > 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.
>
> What does that do to customer equipment choices?  I've got a quarter acre of
> boxes that I know want 12/5vDC inside the case, but that's not an easily
> available option from the vendor - most of the time the only option is
> autoswitching 120-240DC with your choice of power cables.
The 10,000amp bus for the 12v feed for a row of server racks would be a thing to behold. I don't think anyone but Paul 
Wall has seriously considered this.

> (If anybody has a good TCO analysis for doing this with Dell/Sun/IBM/Apple
> servers, I'm willing to listen...)