As a SharePoint developer or administrator, we all have a number ( >10 ) of virtual machines for test and development environment. If your VMs are hosted on Windows Server 2012 and stored on SSD ...... don't forget to enable "Data Deduplication"!
Why? Please check the screenshot below. 340GB vhdx files are "shrinked" to 54GB!
This feature is really impressive. I strongly recommend it to all SharePoint gurus!
Please let me know if you have different thoughts.