[rescue] SGI, Origin 200, and speed?

[Lionel Peterson]

> From: Dave McGuire <mcguire at neurotica.com>
> Date: 2004/04/28 Wed PM 06:58:30 GMT
> To: The Rescue List <rescue at sunhelp.org>
> Subject: Re: [rescue] SGI, Origin 200, and speed?
> 
> On Apr 28, 2004, at 2:55 PM, Micah R L wrote:
> >>   You cannot put four processors in one Origin200 chassis.  But, to 
> >> be clear, connecting two Origin200 systems (or two-or-more Origin2000 
> >> systems) together creates *one* computer.  The output of "hinv" on a 
> >> two-dual-cpu-chassis, CrayLinked Origin200  system will report four 
> >> processors.
> >
> > I was actually wondering about that.
> > I'll show my ignorance and ask another question... do you need only 
> > one copy of IRIX installed on the HDD? Does that mean that you might 
> > not need a disk in the second chassis?
> 
>    Read my lips:  IT BECOMES ONE COMPUTER. :)
> 
>    If you put a disk in the second chassis, it will show up as a disk ON 
> THE OTHER SCSI BUS.  Get it?
> 
>    You will have one computer with four SCSI buses.  Two ethernet 
> interfaces.  Six PCI slots.  One copy of IRIX on one system disk.

Do your nodes need to be "balanced" or "mirror" of each other (have the same #Proc/speeds)?