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. > > Well, in my most recent racks, I decided to be clever and mount it in the > middle. Less cable travel for everyone, right? > > The idea turned out less brilliant than planned. I mounted a server > above it that was alrealdy, ah, iffy heat wise, and as soon as it was > loaded, it crashed, I believe due to thermal stress.
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. For your existing gear, look at thermal/airflow ducting solutions from various cabinet vendors. They can route airflow within the cabinet, at a cost of some extra space. E.g. we're using some Panduit CDE1 ducts with some center-of-rack Cisco 4948 switches to channel cold aisle air to the intakes on the switches, at a cost of an extra rack unit below each switch. -- Hello World. David Bronder - Systems Architect Segmentation Fault ITS-EI, Univ. of Iowa Core dumped, disk trashed, quota filled, soda warm. [email protected] _______________________________________________ Tech mailing list [email protected] https://lists.lopsa.org/cgi-bin/mailman/listinfo/tech This list provided by the League of Professional System Administrators http://lopsa.org/
