Re: [Xen-research] xen for fault tolerance on single server

["Todd Deshane" <deshantm@xxxxxxxxx>]

On Mon, Nov 17, 2008 at 2:59 AM, simon mark <dionysus1090092@xxxxxxxxx> wrote:
> ---------- Forwarded message ----------
> From: simon mark <dionysus1090092@xxxxxxxxx>
> Date: 2008/11/17
> Subject: xen for fault tolerance on single server
> To: "xen-community@xxxxxxxxxxxxxxxxxxx" <xen-community@xxxxxxxxxxxxxxxxxxx>
>
>
> I'm quite interested in fault tolerence on single SMP server using
> Xen. Noting that I do not mean the process migration, but to split the
> memory and set of processors, as well as the hardwares and nics ,to
> multiple "identical " operating systems. You can imagine installing a
> cluster system on the SMP. Sounds like using Xen to substitute the
> expensive hardwares in NEC fault tolerant system.  I understand we
> would never achieve the same fault tolerant level as in the system of
> NEC. However, this "identical OS" seems somewhat pragmatic for those
> small coporation with computing security demands.
> My problem is I really have no idea how to implement this purpose,
> since the hypervisor layer has much to do with domian 0. And if OS on
> this domain go crazy, other OS can not keep sane. I know we must have
> somebody in charge of the devices and this authority, from my opinion,
> can only entitle to one entity for the potential conflicts. Someone
> recommends me to consider the elder version of Xen because the
> hypervisor in it has less connections with the OS. But i do want more
> advices before i take any action.
> Any suggestion will be appreciated. Thanks for your viewing.
>

This might be an interesting paper for you to look out when it releases:

http://www.research.ibm.com/journal/abstracts/sj/474/loveland.html

Cheers,
Todd

-- 
Todd Deshane
http://todddeshane.net
http://runningxen.com

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