Price of Power in a Data Center

mstansberry writes "Much like the rest of the country, IT is facing an energy crisis. The utilities are bracing companies for price spikes this winter and according to experts and IT pros, those prices aren't going to come down any time soon. This is thefirst article in a four-part series investigating the impact of energy issues on IT."

Comments

Moore's law?

[ChrisGilliard]

"It's the other side of Moore's Law," Sneider said. "As the cost of [buying] these machines decreases, the cost of powering and cooling them increases."

I don't agree with this. How power efficient was Eniac? Also, my laptop lasts much longer the one I had a few years back. I think we're making progress on the power front, but the demand for computing power is attracting more and more dollars, the power cost is largely insignificant with regards to the return on investment.

Re:Hot Intel chips are big contributor

[Jeff DeMaagd]

The cooling expense isn't as bad as the heating. I think the theoretical efficiency of cooling is 10% of the heat to be removed, where it would take 100W to remove 1000W of heat. In practice, it is about 30%, so it's not as bad as some people think.

One thing I am skeptical of is the need to cool to like 60 degrees F that I've heard (and felt in one room). Good cooling is nice, but I know one guy that says they don't ever see problems until the temperature is above 80F, so businesses can save a lot by not being so freaking cold.

Re: Linux and power management

[grqb]

I bought myself a watt meter to measure the power of some of my home electronics. So I tested my friend's laptop, it was a Dell, 15 inch monitor P4. Under linux the laptop was drawing 50-100watts (which is very high for a laptop), under windows it was drawing from 30-50 watts. Linux on desktops has the same power management as windows on desktops though.

Re:Hot Intel chips are big contributor

[demigod]

One thing I am skeptical of is the need to cool to like 60 degrees F that I've heard (and felt in one room). Good cooling is nice, but I know one guy that says they don't ever see problems until the temperature is above 80F, so businesses can save a lot by not being so freaking cold.

I always considered that as buffer for when you loose one of the AC units. That way if it takes all day to get it fixed, your only up to 80F and still OK.

Re:Hot Intel chips are big contributor

[Tiger4]

That depends on the room and the equipment. A single small box ins a large room might take all day, or all week to heat it up to 80F. On the other hand, a lot of boxes in a small room might jump to 80F within minutes of losing the cooling. There is no substitute for good engineering. Do the calcs and set it up right.