diskless nodes? (was Re: Xbox clusters?)

Eray Ozkural (exa) erayo at cs.bilkent.edu.tr
Thu Dec 6 02:22:32 EST 2001


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On Thursday 06 December 2001 06:10, Velocet wrote:
>
> Wondering why everyone gets local drives here - do you people have
> computational software that needs to write scratch or swap faster than
> 100Mbps (12.5MB/s) or even GBE (125MB/s theoretical, 35-50MB/s actual)?
> Isnt that fast enough?
>

Say you've got 16 nodes.

Can your disk server attain 16*12.5 MB/sec throughput reliably?

Diskless clusters have their own uses, especially in applications which don't 
do parallel I/O.

It's fair to say that beowulf systems are capable of doing parallel I/O, thus 
they need a local disk.

Thanks,

- -- 
Eray Ozkural (exa) <erayo at cs.bilkent.edu.tr>
Comp. Sci. Dept., Bilkent University, Ankara
www: http://www.cs.bilkent.edu.tr/~erayo
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