[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] [PATCH] Blktap: Userspace file-based image support.(RFC)
> This is the exact situation I had in mind. I think it would be > extremely cool to have a peer-to-peer block migration mechanism, which > would allow the convenience of files for migration and the speed of > block devices. You could even have a method for migrating block > images between machines, independent of a migration. Imagine > something like: > > lvmcp /dev/vols/foo othermachine:/dev/vols Yes, that could even be nice and generic to other use cases, which is always a good sign and a good way of getting extra developers. > I think that would be neat. It's rather straightforward too, I > think. Another thing I've always fancied is the ability to keep a virtual machine's memory and disk images on two machines in close-sync by continuously trickling diffs... This would be used in cases (e.g. desktop migration to a mobile device, emergency server relocation) where you do have warning that a migration is required but you want really low latency (e.g. before your UPS runs out, so you can pick up your laptop and run to a meeting, etc, etc). Cheers, Mark -- Dave: Just a question. What use is a unicyle with no seat? And no pedals! Mark: To answer a question with a question: What use is a skateboard? Dave: Skateboards have wheels. Mark: My wheel has a wheel! _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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