[kwlug-disc] Virtualization technology

[Khalid Baheyeldin]

On Sat, Aug 2, 2014 at 10:05 PM, William Park <opengeometry at yahoo.ca> wrote:

> I have question...  From what I can tell about virt-manager, you can do
> the same things natively in Qemu/VirtualBox.  So,
>     Why would you use virt-manager?
>     Why put another layer or wrapper on top?


Remember that virt-manager is the GUI for libvirt.

So, I will rephrase your question as: why use libvirt when you can go to
the native specific technology?

Others who have hosted VMs can answer better than I will, but the idea is
to abstract the process of creation/starting/shutting/snapshots/...etc. to
be the same for all technologies, and make it independent of the underlying
technology.

For example, Xen is popular now, but KVM comes along and is better. A
company that has built its infrastructure using native Xen will have a lot
of effort converting their custom developed infra from Xen to KVM. A
company that uses libvirt will only need some minimal effort to do so, and
can use the newer technology faster and easier.
-- 
Khalid M. Baheyeldin
2bits.com, Inc.
Fast Reliable Drupal
Drupal optimization, development, customization and consulting.
Simplicity is prerequisite for reliability. --  Edsger W.Dijkstra
Simplicity is the ultimate sophistication. --   Leonardo da Vinci
For every complex problem, there is an answer that is clear, simple, and
wrong." -- H.L. Mencken
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