> running x number of virtual Asterisk servers on one physical Linux
> server to a SAN,
I assume that you're thinking of Linux running on VMWare running on Linux.
VMWare have an enterprise product (not sure if it's hit the streets yet)
that is similar to IBM's mainframe VM supervisor. Very lightweight,
partitions the machine, loads onto bare metal. Almost no overhead.
If you want to do the same thing for free, look at Xen, which has a similar
approach. The guest operating system has to understand Xen (which makes
for great performance), but both Linux and NetBSD have Xen ports. You may
have to hack up some digium/sangoma drives for Xen to present virtual cards
to the VMs, but that shouldn't take very long.
Solaris is a fine enterprise OS, but is *very* resource-hungry.
paul
