Darragh Bailey wrote:
> On Mon, Jul 20, 2009 at 02:28:08PM +0100, kae at verens.com wrote:
>>> On 07/20/2009 02:21 PM, Kevin Philp wrote:
>>>>> Any advice on which option to go for? Xen or KVM - KVM seems to be the
>>> favoured option if you read the Ubuntu docs but the few people I know
>>> in the industry use Xen.
>>>>> I use OpenVZ myself, which has the advantage that all the virtual
>> servers share the same kernel so it's faster, and the disadvantage that
>> all of the virtual servers must be based on the same operating system
>> and distro.
>>>> kae
>>>> That's not strictly speaking true. I have a Centos 5.2 host running
> RedHat 5.3 & 4.6 guests. I also believe that it should be possible to
> run a Redhat 3 guest as well, but I haven't tested it. You do have to
> kludge around with the environment a little to run the older distros on
> it, but it should be possible.
Don't know about this OpenVZ stuff, but for Xen :
RHEL2.1 / RHEL3 Paravirtualised guests you require VT/AMD-V support in
your procs and BIOS, and you will be running fully virtualised guests to
boot.
For para-v guests you can run RHEL4 & RHEL5 guests in a 32-bit
environment, as these come with paravirtualised kernels.
Post install of the VM you will see "kernel-xen"
Conor.
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