[!! SPAM] RE: Virtualization recommendation

[Oron Peled]

On Wednesday, 16 בSeptember 2009 00:24:16 Amos Shapira wrote:
> Yes. We use xen heavily on CentOS 5 at work and am pretty excited that
> RH 5.4 is out with KVM "preview tech", I'm not an expert but got the
> impression that KVM might get things better than Xen eventually.

If your CPU support virtualization extensions (egrep 'vmx|svm' /etc/cpuinfo)
than KVM is definitely the way to go:
 * KVM is part of upstream kernel since 2.6.20 -- supported by every up
   to date distribution.

 * VirtualBox may be OK, but it's the kind of "half-free" solution.
   There's an "Open Source Edition", but you have to use other editions
   for the full feature set.

 * Fully supported by libvirt (http://libvirt.org) which provides:
   - Remote management using TLS encryption and x509 certificates
   - Remote management authenticating with Kerberos and SASL
   - Local access control using PolicyKit
   - Zero-conf discovery using Avahi multicast-DNS
   - Management of virtual machines, virtual networks and storage
   - Portable client API for Linux, Solaris and Windows

 * Since libvirt also support Xen, this is great for mixed environment
   and migration (no need to change tools).

 * There's also virt-manager which is layered over libvirt and provide
   a GUI for the same management features and also secure console
   support (VNC encrypted over SSL or SSH)
   (http://virt-manager.et.redhat.com)

Don't fall in the freebies trap -- חופשי זה יותר מחינם

-- 
Oron Peled                                 Voice: +972-4-8228492
oron at actcom.co.il                  http://users.actcom.co.il/~oron
"Without the wind, the grass does not move.
 Without software, hardware is useless."
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