On Thu, Oct 20, 2011 at 3:08 PM, David Bronder <[email protected]>wrote:
> Luke S. Crawford wrote: > > > > I've been mounting switches backwards forever; I mean, the ports are on > > the back of the servers, right? it only makes sense. Now, normally, > > I put it at the top of the rack and it works fine; excess heat gets > > sucked out through the fan at the top of the rack. > > > > Some switch vendors have models now that have the airflow going in the > opposite direction, suitable for mounting in server racks, or that even > have reversible airflow so you can choose. Something to look at for > new switch purchases. > > What David said. Force10, Arista, Blade, and others make switches that you can just get the reverse power and fan modules and you're set. Big win. (that's what we do) you're not doing your switch any favors by letting it suck hot air into itself, regardless of what you end up doing with the exhaust (even though switches can typically handle higher ambient).
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