Um. Linux has been doing 64-bit for ages now. It's pretty much rock solid. 
I can't think of any reason why you'd run in 32-bit on 64-bt capable 
hardware unless you're going to be using 32-bit applications... which 
you're probably not going to do.

On Fri, 18 Feb 2011, Scott Downing wrote:

> 
> I'm looking at upgrading our Ubuntu 8.04 LTS servers to 10.04 LTS, they're
> clusters of apache and mysql servers. I see now the Ubuntu website
> recommends 64bit but I'm unsure if going to 64bit now is a good idea.
> There's no GUI on the servers or anything that isn't needed, its all CLI and
> they need to run apache with apache2-mpm-itk virtual servers running php,
> ruby, and python. I also need NFS to be solid and our backup client (Avamar)
> to be supported. I'm checking on Avamar right now, that might be a deal
> breaker but how well does 32bit software run on the 64 bit systems? What's
> the current state of 64bit in linux? Should I try or is it not worth it yet?
> 
> -Scott
> 
> 
>


-Yaron

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