On Sunday 07 October 2007, Gary Kline wrote: > First, thank to both you and Bart for your cmments. You were > *right* about the price. Can I assume that a ballpark would be > 400W for each server? (My wife is right: I've got to cut back to > three computers:-) I've found one APC 2200VA with a 17minute > uptime. 3 times 400W, yes?
I think this is overkill. Some time ago I was wondering the same thing and to verify my guess on the overall power usage of my servers I bought a VA/Watts meter (EUR. 39,-). Turns out average wattage is about 90watts per server idle and max 130watts under load. On powerup they will use a max. of 180watts for less than a second. The servers are simple dual cores with about 2 harddisks each. (no screens or other devices attached) Also, the powerfactor was ~0,95 so that means that for every Watt of apparent power (VA) almost a Watt of real power was used. Thus, for my servers I would need something like a 500Watt/600VA UPS. So my advice is: don't guess but measure. Cheers, Pieter de Goeje _______________________________________________ firstname.lastname@example.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]"