We have a Windows Server 2016 which has a second virtual disk of 2TB. I wanted to give it more space, so I added another TB, Total 3TB.
Unfortunately in Windows Server, I cannot allocate the new space since the volume is an MBR partition. I know there are some tools to convert MBR to GPT without losing data.
I would like to undo the increase in the virtual disk. Can I just go back to the virtual machine configuration and change the value from 3TB to 2TB without losing any data?
For better understanding, I add two screenshots - Windows Server disk management or Vcenter VM configuration.
I did a test on the fly. I created a 40 GB disk, copied some data and then added 10 GB. I reopened "Edit" and set the size to 40 GB. This is the result:
You can cut off the added space with dd
> Okay Continuum's answer