[Beowulf] SATA II - PXE+NFS - diskless compute nodes

Eric Shook eric-shook at uiowa.edu
Tue Dec 12 12:27:06 EST 2006


Michael,

This should be sufficient enough to run our software stack as they are 
tested on rhel 4 variants.  I will most definitely look closer at scyld 
CW4 to see if it fits our needs.

What does reimplementing pxe boot mean specifically?

Thanks,
Eric

Michael Will wrote:
> Scyld CW4 is based on RHEL4 and also supported on Centos 4. That does
> not give you different
> operating systems though, just flexible deployment of RHEL4 based HPC
> compute nodes. 
> 
> Note that we had to reimplement the PXE boot part to allow reasonable
> scaling. 
> 
> Michael
> 
> -----Original Message-----
> From: beowulf-bounces at beowulf.org [mailto:beowulf-bounces at beowulf.org]
> On Behalf Of Eric Shook
> Sent: Saturday, December 09, 2006 11:28 AM
> To: Buccaneer for Hire.
> Cc: beowulf at beowulf.org
> Subject: Re: [Beowulf] SATA II - PXE+NFS - diskless compute nodes
> 
> Not to diverge this conversation, but has anyone had any experience
> using this pxe boot / nfs model with a rhel variant?  I have been
> wanting to do a nfs root or ramdisk model for some-time but our software
> stack requires a rhel base so Scyld and Perceus most likely will not
> work (although I am still looking into both of them to make sure)
> 
> Thanks for any help,
> Eric Shook
> 
> Buccaneer for Hire. wrote:
>> [snip]
>>
>>   
>>> I agree with what Joe says about a few hundred nodes being the time 
>>> you would start to look closer at this approach.
>>>     
>> I have started to explore the possibility of using this technology
> because I would really like to see us with the ability to change OSs and
> OS Personalities as needed.  The question I have is with 2000+ compute
> nodes what kind of infrastructure do I need to support this?
>>
>>
>>
>>
>>
>>
>>
>>  
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-- 
Eric Shook (319) 335-6714
Technical Lead, Systems and Operations - GROW
http://grow.uiowa.edu
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