Hyper-V live export

FLAVINIA 41 Reputation points
2022-07-29T08:34:04.683+00:00

Hello,

I was wondering if anybody knows the risks of performing a live export (export a VM while running), without shutting it off or bringing the applications running in it in a safe state.
Is there any risk for the actual VM? When you export it, will it also close or force the applications running in a safe state, or close them, or anything like this?
I have replication enabled, can I maybe pause the Replica, export the replica and import this in a test system, not actually export/import the actual VM? Will this affect in any way the running VM and all the stuff running on this?

Thank you,

Windows for business | Windows Client for IT Pros | Storage high availability | Virtualization and Hyper-V
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  1. Limitless Technology 39,931 Reputation points
    2022-08-02T07:25:53.103+00:00

    Hello

    Thank you for your question and reaching out.

    Exporting VM means taking Snapshot and Exporting to different Location.

    If you Application can handle when VM comes after save state then there should be not issue and its safe operation.

    When you export a running VM in Windows Server 2016 you’ll have a copy of it in saved state. Just like you did in Windows Server 2012 R2, no change there. When you import that you’ll have a VM in saved state that you need to start up. If you want an application consistent copy, create a production checkpoint first and export that one.

    So there you go. The feature to live export a running virtual machine was here before and it’s still here. The real extra capability with live exports comes from leveraging the live export of a checkpoint of a running virtual machine and the fact that we now have production checkpoints.

    https://learn.microsoft.com/en-us/windows-server/virtualization/hyper-v/deploy/export-and-import-virtual-machines

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