On Mon, Nov 09, 2009 at 09:23:18AM -0500, John Madden wrote: > FWIW, I won't run anything on hardware anymore unless I absolutely have > to. To me, the benefits of running virtualized outweigh the pitfalls -- > dealing with real OS installs on real hardware, dealing with > multipathing and SAN (virtual disks are easy), etc. Whereas I have totally the other approach. I hate single points of failure, so every machine has its own local storage. Real OS installs are automated - just netboot and it sets itself up. And it's not turtles all the way down - at some point there's still real hardware underneath whatever layers you're running. We're managing to get increadibly high levels of utilisation out our machines while remaining fast by having everything sit as close to the metal as possible. Power costs too much to waste it on virtualisation overhead! Bron ( we do use virtualisation for our test machines, but production doesn't have any parts sub-machine-sized, so why split a machine? ) ---- 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