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North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical Re: rack power question
Basically, that is the state of things. You're paying for power (which is also cooling) and bandwidth/connectivity. Globix is only letting us run one 30A 240V circuit per rack for "cooling reasons", however even with our 6850s we manage to populate a good portion of the rack. However, this means that for redundancy we cannot put anyone's partner in crime in the same cabinet. Though Globix is the typical cold-in-front, hot-in-back setup they still seem to be under-capacity when it comes to cooling... I think the end of the dot-com boom put a dent in their Liebert budget. It amazes me places like Hurricane can't get enough space when there are once-decent shops like Globix with so much unused space. Plan your power requirements carefully, and plan on the ability to upgrade in the future. With the current trend of high-capacity blades, it seems that it would not be impossible to find 20-25kw per cabinet not long from now. Power distribution (if done right) is easy, cooling that density is the fun part. What's your cooling plan? -Patrick ----- Original Message ----- From: "david raistrick" <[email protected]> To: "Joe Greco" <[email protected]> Cc: [email protected] Sent: Saturday, March 22, 2008 9:26:37 PM (GMT-0800) America/Los_Angeles Subject: Re: rack power question On Sat, 22 Mar 2008, Joe Greco wrote: > Charging substantially less for rack space, even offset by higher costs for > power, would encourage a lot of colo customers to "spread the load" around > and not feel as obligated to maximize the use of space. That would in turn > reduce the tendency for there to be excessive numbers of hot spots. I wonder if we're to the point yet where we should just charge for power and give the space away "free".... When I'm shopping for colo that's pretty much the way I look at it. Power determines space. I need 80,000W of power at the breaker, so I need 800sqftx15$ in facility A, and [email protected]$ in facility B. I can fit my 8 racks into either the 320sqft or into the 800. If I'm doing the 800, I'll probably spend a bit more up front and use 12 or 14 racks, to keep my density down. A bit more cost up front, but in the grand scheme of things 4 or 6 extra racks ($6 to 10,000$) don't directly hurt to much. (80kW worth of power usually means you've got well north of $2M worth of hardware and software being stuffed into the space in my experience..but maybe that's because we're an Oracle shop. ;) Of course, I suppose for those customers still doing super-low-density boxes (webhosting with lots and lots of desktops), I suppose that model wouldn't work as well. ramble. .d --- david raistrick http://www.netmeister.org/news/learn2quote.html [email protected] http://www.expita.com/nomime.html
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