VMware for Cyrus?

[Kenneth Marshall]

On Mon, Nov 09, 2009 at 03:35:53PM +0100, Sebastian Hagedorn wrote:
> --On 9. November 2009 07:51:34 -0600 Kenneth Marshall <ktm at rice.edu> wrote:
>
>> I will go ahead and chime in here. If and only if your I/O usage is
>> well understood and managed, would a VM option work. As others have
>> mentioned, any amount of heavy I/O will take out or slow dramatically
>> every VM that needs any I/O at all.
>
> Is that really true if you map raw SAN devices to the VM? I would expect 
> that I/O wouldn't be much different in that case. That's what we're going 
> to do.

If you have dedicated I/O resources, it will be fine. The case I
was referring to was with one big shared I/O pool usually with the
disclaimer "that will be enough I/O for anything..." :) 

Ken