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Re: [Qemu-devel] [RFC]VM live snapshot proposal

From: Huangpeng (Peter)
Subject: Re: [Qemu-devel] [RFC]VM live snapshot proposal
Date: Tue, 4 Mar 2014 01:28:03 +0000

> > I think this is different in the same way that block-backup and
> > block-mirror are different.  Huangpeng's proposal would let you make a
> > consistent snapshot of disks and RAM.
> Right. Though the point isn't about consistency (doing the disk snapshot when
> memory has converged would be consistent as well), but about having the
> snapshot semantically right at the time when the monitor command is issued
> instead of only starting it then and being consistent at the point of 
> completion.
> This is indeed like pre/post-copy live migration, and probably both options 
> have
> their uses. I would suggest starting with the easy one, and adding the
> post-copy feature on top.

Good suggestion, The latest patches of post-copy seems updated 2 years ago.

One question:
Can post-copy fallback if exceptions happen during post-copy?


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