Re: Data centre info
On May 7, 2009, at 7:25 AM, Deric Kwok deric.kwok2...@gmail.com wrote: Hi all Any suggestion about data center 1/ to put on the switch in rack? eg: top. middle or bottom position 2/ There is no raise floor - adv - disadv Thank you for your information We like to see switch gear in the top of the rack and exhausting put the back (provided it doesn't have side to side air flow) Not having raised floor doesn't matter so long as cooling is delivered properly to the racks (top down, in row, or in rack), and cable management is available above the rack (ladder, trough, or rack-top like APC offers)
Re: Data centre info
Shawn Hammer wrote: Not having raised floor doesn't matter so long as cooling is delivered properly to the racks (top down, in row, or in rack), Why do you believe that it is proper to deliver the cooling top down? Heat rises! The cool air needs to be delivered to the bottom (raised floor) or front (alternate row cooling) so that it flows over/thru the computers on its way to the hot air intakes which should be located above the back of the cabinet (above the hot row) or top of the room (for raised floors). Disadvantages of no raised floor: IMHO the cooling is not as efficiently delivered or managed. Since electrical costs (and by extension, cooling costs) is one of the biggest costs for data centers, this cost is a large part of what you pay. If they aren't being efficient in the design, their costs are higher, and you end up paying higher fees. Yes, the build-out costs are higher, but it's the ongoing hosting costs that go ever higher year after year that will rack up your bill. Advantages of no raised floor: Someone can't sneak (a person or data line) into your cabinet or cage thru the floor. Racks are more stable in the event of an earthquake. Overhead cabling is easier to follow, maintain, repair. jc
Re: Data centre info
Dear Deric, Any suggestion about data center 1/ to put on the switch in rack? Top eg: top. middle or bottom position 2/ There is no raise floor - adv hot/cool corridor solution (air-condition standing between racks, apc has solutions) easy cabling - disadv you can not hide cables kind regards, Ingo Flaschberger
Re: Data centre info
Ingo Flaschberger wrote: - disadv you can not hide cables I think well-dressed visible overhead cable arrangements look kind of cool. I'd rather see nice cables than a hidden rat's nest. ~Seth
Re: Data centre info
On Thu, May 7, 2009 at 12:53 PM, JC Dill jcdill.li...@gmail.com wrote: I've never been happy with the room temps or equipment temps in any data center that used this blow cold air from the ceiling approach. But hey, if it works for your equipment, more power to you. I encourage all my competitors to do this. All joking and invoking Randy aside, are you really providing datacenter HVAC advice to other promising young equine photographers? Care to enlighten us with some of their top concerns in data center design? I always suspected there was some sort of unspoken back-story behind Equinix's big red silo. Drive Slow, Paul Wall
