Muhammed Syyid wrote:> Hi
> I''m looking to setup a few VM''s with Centos 4.x/5.x. I
had a couple of questions
> 1) From what I understand I can do this using both Xen or Zones, is that
accurate?
>
My understanding is both Xen and Zones would allow some form of Centos,
however with Xen, you would be running the entire Linux kernel +
userland, with Zones this would be via BrandZ and just the Centos
userland on top of the Solaris kernel.> 2) If I use either of the two, can I migrate between them later - convert
to Xen / convert to Zones etc?
>
You might be able to do so, it would probably be painful, and
unsupported.> 3) Also if I decide to migrate the images to another Linux machine (using
Xen or KVM) , can that be done? any pointers on how?
>
Both technologies allow migration to a different physical host. Each has
its own caveats though. Entry point for Xen would be something like "xm
migrate", and for Zones would be something like "zoneadm detach".
> 4) What would be preferable to use Xen or Zones? (I know Xen runs as a
hypervisor vs Zones run as more of a client VM, don''t know much else)
>
Which technology you select really depends on what you want to do with
your VMs. Zones are much more efficient than Xen, but wouldn''t give you
a full Centos/Linux VM. Xen would give you a more complete Centos/Linux
VM but with some overhead.
--joe