Like Stephan mentioned, there can be quite a difference between XEN
and VMWare when you look at its two different operating modes. In
essence, XEN is a kernel modification that allows for the XEN
software to talk directly to the lowest levels of the OS and to the
hardware. This is how come some say it is faster than VMWare, because
VMWare is another layer higher than XEN and performs total
virtualization, where Para mode performs half and half
virtualization, where the hardware is not fully virtualized. The
benefits of these different modes, you will have to examine which one
is right for you. But, overall, para mode is great for cases where
you want to virtualize a few things, maybe a mail server inside a web
server, but you don't mind if they can see each other. Full
virtualization is great when you want to run Windows on a Linux box,
and keep them totally isolated from each other to prevent security
breaches to the windows "machine".
On Apr 23, 2007, at 10:03 PM, [EMAIL PROTECTED] wrote:
On Tue, 24 Apr 2007, Johan Mares wrote:
Is Xen included in SL5 ? If so, also with a maximum of 4 virtual
servers ?
Yes. No. It is included, and it works, and there's no such limit
(not even
in the upstream product - at least it's not a technical limitation).
Does anyone have any experience with Xen ? How does it compare to
VMWare (the
It's quite different. And there are two modes of operation (para/full
virtualization) which are quite different again. Just give it a try
and
find out.
free edition) ? Any good manuals on how to get started with Xen ?
Why not try the Virtualization Guide coming with SL5 ;-)
Tried it with Fedora C6 but either it tried to install itself onto
the install
medium (my dvd player) (installing SL4, Debian, Ubuntu) or it
disappeared
(Centos5) after installing.
Read the document named above. Learn about virt-install, virt-
manager, and
the xm command (at least "xm list" and "xm create"). That should be
all
you need to get started.
Hth,
--
Stephan Wiesand
DESY - DV -
Platanenallee 6
15738 Zeuthen, Germany
