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...)