funsec mailing list archives
Re: Database design.
From: Drsolly <drsollyp () drsolly com>
Date: Wed, 7 Jun 2006 00:00:45 +0100 (BST)
On Tue, 6 Jun 2006, Andrew wrote:
Drsolly wrote:400 computers at 100 watts per computer, would need 40 kw. Space requirement - you could put it in a double garage. Aircon requirements wouldn't be too bad, you could probably go with 20 kw to augment the natural cooling. Hardware really is cheap.You're having us on. A common model two processor server class machine requires 450 watts. The BTU rating for this same server is 1535 per hour. A middle of the road Liebert can accommodate 12,000 BTU. Your server setup is cranking out more than half a million BTU. And natural cooling? What is that exactly? A spring breeze over the backs of your 16,000 pounds of hardware? Maybe the racks could sit in a meadow and chill in the morning dew.
I measured the consumption of a single-cpu (Celeron) server, plus drives. That was 110 watts 1535 btu/hour is 450 watts. So, maybe your servers do need 450 watts, I can't say. But I do know that mine eat 110 watts. "Natural cooling" is the way that some heat will leave a heated room even if you don't pump it out. _______________________________________________ Fun and Misc security discussion for OT posts. https://linuxbox.org/cgi-bin/mailman/listinfo/funsec Note: funsec is a public and open mailing list.
Current thread:
- Re: Database design., (continued)
- Re: Database design. Valdis . Kletnieks (Jun 06)
- Re: Database design. Brian Loe (Jun 07)
- Re: Database design. Blue Boar (Jun 06)
- Re: Database design. Drsolly (Jun 06)
- Re: Database design. Valdis . Kletnieks (Jun 06)
- Re: Database design. Drsolly (Jun 06)
- Re: Database design. Blue Boar (Jun 06)
- Re: Database design. Drsolly (Jun 06)
- Re: Database design. Valdis . Kletnieks (Jun 06)
- Re: Database design. Andrew (Jun 06)
- Re: Database design. Drsolly (Jun 06)
- Re: Database design. Valdis . Kletnieks (Jun 06)
- RE: Database design. Blanchard_Michael (Jun 07)
- RE: Database design. Drsolly (Jun 07)
- Re: Database design. Brian Loe (Jun 07)
- Re: Database design. Drsolly (Jun 07)
- Re: Database design. Brian Loe (Jun 07)
- Re: Database design. Drsolly (Jun 07)
- Re: Database design. Brian Loe (Jun 07)
- Re: Database design. Drsolly (Jun 07)
- Re: Database design. Andrew (Jun 07)