Cyrus on Amazon EC2 and EBS?

[Simon Fraser]

On Thu, 2010-02-11 at 12:02 -0500, Forrest Aldrich wrote:


> > I run Cyrus on a Linode VM.  I've been *very* happy with them.  And it
> > is just a 'normal' virtual server and not any odd-ball cloud thing.    
> 
> 
> I wonder how people deal with the disk I/O deficiency under virtual 
> systems such as VMWare.   We decided not to virtualize any processes 
> that were disk I/O intensive.

The admin next to me, who looks after our VMWare infrastructure, tells
me that you can improve performance for I/O intensive functions by
presenting the storage as a raw device, rather than through the
datastore. Certainly, we run some busy databases and even an exchange
server on virtual machines, and the only complaints raised were when
they were accidentaly put on a datastore and the other VMs using it
suffered.  

Simon.




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