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@redhat.com> wrote:
On Apr 16, 2014, at 16:41 , Tamer Lima <tamer.americo@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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