[GLLUG] good to be back

[Sean]

What Paul said will work fine, but I would probably take that one step 
further and do 
 Outside LAN -> firewall gateway (two nics) -> switch -> Head Node -> 
slave nodes

or something similar just to keep DoS attacks off your cluster (which 
maybe in the form of windows chatter.. 

I think i would start at 

http://pacont.ncsa.uiuc.edu:8900/public/HPC/

I tried to log in and got an auth error but I made it in (I was already
registered though so im not sure).. it is a pretty good intro course to
HPC. I have a hard copy of it somewhere if you cant get in..

There is some really sweet networking stuff that you can do with linux.

you might also want to check out 
http://www.beowulf-underground.org/

and there is a really cool thing that was put together by the university 
of kentucky by hank dietz. He has this site which has some pretty good 
information on it too. 
 
http://aggregate.org/


On Thu, 12 Dec 2002, Melson, Paul wrote:

> Sounds like we're on the same wavelength.  "Dual-homed" is just another
> way of saying that a machine has 2 NICs on different logical networks.
> 
> PaulM
> 
> -----Original Message-----
> From: Stuart C [mailto:tuxedobird@bust.com]
> Sent: Thursday, December 12, 2002 5:53 PM
> To: gllug
> Subject: RE: [GLLUG] good to be back
> 
> 
> 
> >My recommendation to anyone doing clustering (with any OS, really), is
> >to have a separate network segment for traffic between cluster nodes.
> >This means having at least one dual-homed cluster node, but it
> generally
> >makes your HP/HA/FT-based services more fault tolerant. (You might be
> >surprised at how easy it is to knock over a cluster, even accidentally,
> >when you have access to the same segment that heartbeat and sync
> traffic
> >use.)
> 
> I think this is close to what im thinking. Im not sure what you mean by
> dual-homed, but i plan on having a completely seperate switch for the
> cluster traffic.  so it would be something like  
> 
>     Outside LAN -> Head Node (2 nic's) -> switch -> slave nodes
> 
> thanks for the help its been greatly appreciated.
> 
>                           - Stuart
> 
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