[rescue] Deciding how to place machines in a rack...
ploopster at gmail.com
Wed Mar 5 16:56:16 CST 2008
Patrick Finnegan wrote:
> On Wednesday 05 March 2008, Sridhar Ayengar wrote:
>> One thing to which I can attest:
>> At work, I had a rack with a bunch of 4U machines in the top and
>> louvered doors, front and back. There was a bunch of unused space in
>> the bottom. I was getting thermal alarms from the machines. One of
>> my cow-orkers suggested putting blanking panels in the bottom of the
>> rack. The extra isolation between the front and back of the rack was
>> enough to keep the alarms from going off.
> Populating the rack from the top down can cause other issues too, like
> tipping over and crushing things if you bump into the rack, or there's
> an earthquake, or you pull one machine out, or ...
Except there was a heavy PDU in the very bottom of the rack, and the
rack was bolted to the floor. And we have a rack-winch.
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