hi, thanks for reply
I am investigating what is and how "thin virtualization" works
Do you know if HADOOP is indicated to work under "thin" environment ?
On Hadoop I will put large workloads and this thin virtualization
utilizes more resources than exists (shareable environment)
that is,
if I have a real physical necessity of 500gb for each hadoop host and my
Thin Virtualization has 2TB on NFS, I can have only 4 virtual machines
(500GB each), or less.
For this case I believe clone virtual machine is the right choice. But in
my environment it takes 1h30m to build one cloned virtual machine.
Am I correct ?
On Thu, Apr 17, 2014 at 7:33 AM, Michal Skrivanek <
michal.skrivanek(a)redhat.com> wrote:
On Apr 16, 2014, at 16:41 , Tamer Lima <tamer.americo(a)gmail.com> wrote:
>
>
> Hello,
>
> I created VMs by two ways :
>
> 1) on tab virtual machines > new vm > template (centos_65_64bits)
> 1.1 configuration : I do not select stateless checkbox
> 1.2 this process takes a 1h30 to create each machine.
>
> 2) on tab pools > new vm > template (centos_65_64bits)
> 2.1 default configuration : stateless
> 2.2 Here I created 3 virtual machines at once
> 2.3 this process takes only one minute
>
> On the tab virtual machines I can see all virtual machines.
> Pooled machines have different icon image
> and description is different too:
>
> machines generated from tab VM are described as clone/dependent
> - clone is a phisical copy?
> machines generated from tab POOL are described as thin/independent
> - thin is a just a reference to template vm ? what is phisical? any
configuration file?
yeah, sort of.
just google thin provisioning in general:)
>
>
> In practice, what is the difference between these machines ?
>
>
>
>
>
http://www.ovirt.org/Features/PrestartedVm
> "Today there are 2 types of Vm pools:
> • Manual - the Vm is supposed to be manually returned to the pool.
In practice, this is not really entirely supported.
> • Automatic - once the user shuts down the Vm - it returns to the
pool (stateless)."
>
> all vm created from pool are stateless ?
the automatic pool, yes
Thanks,
michal
>
>
> thanks
>
>
>
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