[Beowulf] What is the right lubricant for computer rack sliding rails?

Robert G. Brown rgb at phy.duke.edu
Wed Feb 11 20:39:51 EST 2009


On Wed, 11 Feb 2009, Greg Lindahl wrote:

> On Wed, Feb 11, 2009 at 05:19:11PM +0000, John Hearns wrote:
>
>> Or use the little metal tool which comes in a bag of cage nuts. Which
>> themselves have nice sharp edges ready to slice your fingers of
>> course. But any big cluster demands blood sacrifice (*)

But it is SUPPOSED to be a CHICKEN.

> The guys I learned from use only screwdrivers, and I haven't been cut
> since I started doing it their way. Both kinds of little metal tool
> are worse than useless.

I just work more slowly than that, perhaps because I don't rack
all that many nodes all that often.  Practice makes perfect, I'm sure.

    rgb

>
>> I suppose Sun racks fit that bill - as they have lines of tapped holes
>> rather than square sections, but since they come with US of A size
>> holes it drives us right-pondiands frantic.
>
> It's easy to buy racks in the US with round holes for 12/24 screws.
> Datacenters don't seem to like them (my situation), but many HPC
> clusters have them.
>
> -- greg
>
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Robert G. Brown	                       http://www.phy.duke.edu/~rgb/
Duke University Dept. of Physics, Box 90305
Durham, N.C. 27708-0305
Phone: 1-919-660-2567  Fax: 919-660-2525     email:rgb at phy.duke.edu


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