- Solaris Zones & Containers
- Oracle VirtualBox
- Citrix XenServer
- Oracle VM Manager (OVM)
- Amazon Web Services (AWS)
- Microsoft Azure Cloud Services
It's funny how this is perceived by some people unfamiliar with it. Today in a meeting, some people thought that moving systems to the "cloud" would cause a loss of IT positions. I never thought so. My least favorite part of the job is the part that takes .001% of your time - mounting the physical hardware in a rack and wiring it. If that goes away, I will not miss it at all.
I love that I can clone, copy and snapshot VMs. Using physical hardware now seems to me like working without a net. I would not want to go back. Even better is having the services in the cloud. No messy wires, no failing hard drives (I have an open ticket for one now). Even backups are a breeze.
I have a 32 bit Windows 7 desktop VM that I migrated from a PC running CentOS 5 under Xen to a PC running Red Hat Linux 6 running KVM (that was a tough migration - but it worked!) and then I moved it again to a PC running Oracle Linux 7 under KVM (much easier move). So, my Windows 7 has been with me through 3 PCs. All of my stuff is there - all my files and software. Virtualized PC's are really cool!
I also run additional VMs on my PC. If a new distro comes out and I want to see what it looks like - I just load it from the ISO! I don't have to have spare hardware. It's great! I have been running my desktop like this about 6 years and can't imagine doing it any other way. (I started virtualizing my servers almost 10 years ago).
Lately, as I have built about a dozen various VMs in Azure. I've been testing the cloning of VMs & filesystems and securing endpoints. (It took some time to figure out how to reserve static addresses.)
Now, I love Linux and my technology passion is learning pretty much anything OpenSource - BUT, even though I could do quite a bit with the cross platform kit for Azure under Linux - most of the work was easier in Powershell. No problem - because I really like Powershell - BUT, my 32 bit Windows 7 system didn't seem to want to finish the install and hung twice. I figured it was because it was 32 bit. Again, thanks to virtualization - No problem - I just loaded up 64 bit Windows 10. (I tried to like Windows 8 and 8.1 but eventually gave up. Skipping that one.) Windows 10 is a nice mix and seems more intuitive then its predecessor and ran the Azure Powershell environment which made cloning much easier.
The cool thing is, I can still run my old Windows 7 for as long as it gets patches (and then I could just remove the network and keep it for nostalgia) BUT I also get to run Windows 10 and use the Azure Powershell features I need.
Anyway, Linux and KVM gives you a lot of possibilities and it's free (your VMs, may not be).