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Re: [Xen-users] Need technical support on Xen migration development

Yes. Live-migrating suspended apps would be the ultimate goal, but it won't be a bad idea to consider the shut-down plan as a preliminary target. In other words, we are just trying to figure out the probability.

Please point it out in case I didn't express myself clearly.

----- Original Message -----
From: Fajar A. Nugraha <list@xxxxxxxxx>
To: Sha <pichu@xxxxxxxxxxxx>
Subject: Re: [Xen-users] Need technical support on Xen migration development
Date: 12-02-29 16:34:47

2012/2/29 Sha <pichu@xxxxxxxxxxxx>:
> Thanks again for your comments. I have also been reading many docs, and it
> seems that PowerVM Lx86 is indeed a pratical way to run x86 app on Power
> server, but the main chanllenge might be how to resume the running state of
> a suspended app in migration. I'm looking into that.

Do you REALLY need to suspend the application, instead of shutting it down?

It will be impossible. Moving the machine state requires identical
condition on both source and target. For example, when moving between
two Xen dom0s, the CPUs need to be the same (or at least same-enough),
that even live migrate between AMD <-> intel doesn't always work.

You want to live-migrate between a full-virtualization/PV setup (that
can run full-blown OS, with their own kernel) to something that only
supports binary translation for running a single application. It's
simply can't work.

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