Re: [9fans] latest minicluster: ARM fun

[Mathieu Lonjaret <mathieu.lonjaret@gmail.com>]

And it even makes a very decent christmas tree, with all the pretty lights! ;)

On Tue, Nov 30, 2010 at 6:56 PM, ron minnich <rminnich@gmail.com> wrote:
> Here is our latest minicluster design.
>
> We used the gumstix stagecoach.
>
> It's nice, 196 Ovaros in a box. We had a number of failed attempts on
> an enclosure design:
> http://picasaweb.google.com/rminnich/Strongbox?authkey=Gv1sRgCI6PwZXM57iZ8gE#
>
> That was my first design, it was really quite compact and fun, and it
> was a huge pain to assemble. It hit the basic high points however: 7
> nodes per stagecoach, 7 stagecoaches per shelf, a switch per shelf
> that reduced the outgoing enet cables to one. Power was a huge issue;
> 5V 80A per shelf, which was not fun. 10 GA wires never are.
>
> I know at least some people on this list know Mitch Williams. He came
> up with this:
> http://picasaweb.google.com/rminnich/StrongboxAtSC10?authkey=Gv1sRgCJbWpcfci73HxwE#
> It's quite elegant: self-contained shelves, with power supply,
> Rigrunner for fuses,
> continues the use of an 8-port switch per shelf, so each shelf has one
> 120V power cable and one enet cable coming out.
>
> Plan 9 is in the works. This is a nice test and development platform
> for software. We're going to make the design available in a way that
> people can easily build their own.
>
> ron
>
>