What is meant by virtualization?

Question

System administration

I can work with Hyper-V, VirtualBox, QEMU
That is, I can set up and administer a server with virtual machines.
What else do you need to know? Are there any tips?
You can often see that you need skills in virtuization (or something like that, how to understand it)

Answer 1

Here you can read what is the difference, but in general you still need to get acquainted with XEN, KVM, LXC and OpenVZ. Be sure to run Docker with CoreOS, and maybe even raise OpenStack with some kind of deployment to puppet / chef / saltstack.

Answer 2

This is as broad a requirement as "skills in network administration" - some understand it as experience with a peer-to-peer network of 20 computers, and someone - knowledge of Cisco at least at the CCNA level.
If you are looking for a job as an administrator, you need to keep in mind that the most popular enterprise virtualization platform is VMware vSphere, and it will be a big plus for you to be able to deploy / administer it at least in the basic version.
And so, when I worked in an integrator, a virtualization specialist was understood as a person who knows well more than one VMware product (vSphere, vCloud Director, vCNS, etc.), some other platform at the advanced admin level + which one is required -something from VDI-solutions.