On Mon, 2007-10-15 at 14:50 -0400, Scott Dowdle wrote:
Sorry for butting in with some ideas that might be considered off topic for your particular discussion but you sound like perfect customer for OS Virtualization. Although running OpenVZ (or Linux-VServer) would be going outside of the official CentOS repositories (and upstream)... since you want to run Linux on Linux with no need to run different kernels... and are seeking performance... I'd recommend you give the OS Virtualization guys (aka containers aka security contexts) a try.
According to their (OpenVZ) installation guide, you still need to turn off SELinux. If you will be using virtualization run net-facing daemons, I'd think twice before deploying OpenVZ. Besides that it provides less isolation. Every virtual machine is running the same kernel, a kernel vulnerability may be enough to break out of a virtual machine.
Besides that, as you already mentioned. With OpenVZ you are on your own, it's not CentOS anymore.
-- Daniel