On Mon, Nov 09, 2009 at 03:35:53PM +0100, Sebastian Hagedorn wrote: > --On 9. November 2009 07:51:34 -0600 Kenneth Marshall <ktm@xxxxxxxx> 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 ---- Cyrus Home Page: http://cyrusimap.web.cmu.edu/ Cyrus Wiki/FAQ: http://cyrusimap.web.cmu.edu/twiki List Archives/Info: http://asg.web.cmu.edu/cyrus/mailing-list.html
