Looking at the description of Linux-Vserver, it is a virtualizing system in
it's most rudimentary sense of the word. As near as I can tell, it is much
more comparable with something like Solaris Zones, in that it "traps" the
virtual environment in something similar to chroot, but everything still
runs within one Linux operating system.
Advantage: It's free, or close to it.
Disadvantages:
It doesn't take any advantage of the hardware it's running on.
If an application manages to crash the system, it has crashed all the
systems
It doesn't provide the degree of virtual environment separation that z/VM
does
It doesn't really isolate the resource usage; everything is in one Linux box
It's not a real virtual environment; It's just a way of containing several
users within a separated environment within a single Linux image.
So... It's well worth the price, but doesn't address a myriad of issues that
z/VM does. You'll never the the performance from it that you will running
beneath z/VM. You'll save money in licensing, but lose that money in
performance. You'll never run the same number of virtual Linux images that
you can within z/VM.
You could definitely try it.... But I think you'll find it very limited and
confining.
In short, I wouldn't mess with it. Get z/VM; you'll reduce your learning
curve, because you won't have to learn Linux-Vserver, and then turn around
and learn z/VM.
--
.~. Robert P. Nix Mayo Foundation
/V\ RO-OE-5-55 200 First Street SW
/( )\ 507-284-0844 Rochester, MN 55905
^^-^^ -----
"In theory, theory and practice are the same, but
in practice, theory and practice are different."
On 10/25/07 2:58 PM, "Adam Thornton" <[EMAIL PROTECTED]> wrote:
> On Oct 25, 2007, at 2:50 PM, Jones, Russell wrote:
>
>> I am looking into running linux virtual machines under a linux host on
>> S/390 architecture. According to this list, Linux VServer is available
>> for S/390.
>>
>> http://en.wikipedia.org/wiki/Comparison_of_virtual_machines
>>
>> Has anyone tried it? Are there other virtual machines that will run
>> under a linux host on S/390?
>>
>> Thanks for your input.
>
> Um, why?
>
> That's kinda what VM is for, right?
>
> One other way to do it would be to run Linux on the iron, and then
> Hercules on Linux, and then Linux on the emulated S/390 on Hercules.
>
> You won't like it much though.
>
> Adam
>
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