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RE: [Xen-users] cluster - basic understanding

To: <xen-users@xxxxxxxxxxxxxxxxxxx>
Subject: RE: [Xen-users] cluster - basic understanding
From: "Novaes, Reynaldo" <reynaldo.novaes@xxxxxx>
Date: Tue, 17 Jan 2006 13:35:31 -0200
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Thread-topic: [Xen-users] cluster - basic understanding
--- Chris de Vidal <chris@xxxxxxxxxx> wrote:
>> So one Cluster is build by 5 nodes here. Involving XEN - does 
>> that mean following a) or b)?
>(...)
>> b)
>> 
>> Application        x    y    
>> Cluster           ---  ---
>> XENdomU        U  U U  U U
>> XEN dom0       xxxx xxxx xxxx
>> Hardware        HH   HH   HH   
>> 
>> Here three physical servers host a xen dom0 each with two 
>> domU's. Two of these domU's on diffrent HH now build a cluster.
>
>
>The correct answer is b.

One think I didn't understand in this option is: why do you need to introduce 
another software layer (XEN in this case) in the system? It seems to me that 
the desirable features come from the cluster layer (OpenSSI) not from the XEN 
layer. Am I correct?

Thanks,
Reynaldo

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