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Re: [Xen-devel] Live Migration of Linux Desktop

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Subject: Re: [Xen-devel] Live Migration of Linux Desktop
From: Thorolf Godawa <nospam@xxxxxxxxx>
Date: Mon, 03 Apr 2006 19:57:20 +0200
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migrate your "desktop" between home and work, whilst maintaining a cache of *most* disk state at both sites. It'd also be useful when transferring a virtual machine between your desktop and your laptop, for instance.
there are just some "little" problems:

During migration between two different platforms it can often happen, depending on the CPU-type and actual CPU-state that the migration fails and the VM on the destination-system crashes.

Second problem is that for migration you need a shared device for the image. You can use the harddrive of laptop for sharing via NFS but actually it's not very usefull because then you can directly work on the laptop.

And the other scenario, making snapshots in some interval is not the best idea too, because the saved CPU- and memory-state and the actual harddisc-content you have later are out of sync. With this everything between data-loss and machine-crash is possible!

Chau y hasta luego,


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