Hyper-V Differential Export

Just saw this on Aidan Finn’s blog. Couldnt find any information on this from Microsoft except for this blog but have confirmed in lab 🙂

Windows Technical preview allows you to perform differential exports of VM’s using checkpoints.

What this means is that you can export a VM and at  later point perform a second export of the VM. However the second export won’t be a full export it will just export the changes since the previous export and link it to the previous export in the form of a AVHDX (checkpoint) file.

Very useful, could even be used as a poor mans backup. Also pretty sure that we’re going to see backup software take advantage of this new feature.

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