“The latest release of Red Hat Enterprise Linux (RHEL 5) sees
the usual clutch of open source performance, functionality and
security updates joined, for the first time, by integrated
virtualisation facilities deemed suitable for production use.“Based on Xen Source technology, RHEL 5 offers support for two
types of virtualisation: so-called para-virtualisation, where
guests are limited to modified versions of the Red Hat Linux O/S;
and full virtualisation, where other guests, including Windows, can
be run unmodified…”