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

Eric Shook eric-shook at uiowa.edu
Tue Dec 12 12:28:27 EST 2006


Hi Bill,

I will try to email them and let everyone know what they have to say.

How did the Rocks -> warewulf conversion go?

Thanks,
Eric

Bill Bryce wrote:
> Hi Eric,
> 
> You may want to send the Perceus guys an email and ask them how hard it
> is to replace cAos Linux with RHEL or CentOS.  I don't believe it should
> be that hard for them to do....we modified Warewulf to install on top of
> a stock Rocks cluster effectively turning a Rocks cluster into a
> Warewulf cluster - and the cluster was running RHEL....so it is
> possible.
> 
> Regards, 
> 
> Bill.
> 
> 
> -----Original Message-----
> From: beowulf-bounces at beowulf.org [mailto:beowulf-bounces at beowulf.org]
> On Behalf Of Michael Will
> Sent: Monday, December 11, 2006 7:15 PM
> To: Eric Shook; Buccaneer for Hire.
> Cc: beowulf at beowulf.org
> Subject: RE: [Beowulf] SATA II - PXE+NFS - diskless compute nodes
> 
> 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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