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Subject: [Qemu-devel] Re: Live migration - exec: support to be reintroduced?
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To: qemu-devel@nongnu.org

Anthony Liguori wrote:
> Daniel P. Berrange wrote:
>> This isn't for snapshotting, so checkpointing of storage is unneccessary.
>> This is just straight save+restore, akin to hibernate-to-disk for a 
>> physical machine.   
> 
> This is a fundamentally broken concept.  You cannot just save the 
> guest's memory state without saving the current state of the storage.

Oh -- let me follow up on how this works in libvirt:

The "save" and "restore" commands shut down and start the VM when 
invoked; consequently, no storage changes are made while the VM is down. 
Restoring more than once off the same "save" is not an intended use case.