[occi-wg] Nouns and Verbs (was: Syntax of OCCI API) - state model

Edmonds, AndrewX andrewx.edmonds at intel.com
Tue Apr 21 04:20:41 CDT 2009

Totally - we've removed any reference to migrating - the current state model can be found here....



-----Original Message-----
From: occi-wg-bounces at ogf.org [mailto:occi-wg-bounces at ogf.org] On Behalf Of Alexander Papaspyrou
Sent: 21 April 2009 10:16
To: Chris Webb
Cc: occi-wg at ogf.org
Subject: Re: [occi-wg] Nouns and Verbs (was: Syntax of OCCI API) - state model

This is a "view" question. From the viewpoint of a scheduler, "migrating" is important; the user certainly does not need (want?) to see this. Are we really clear about the target audience of the API?


Am 17.04.2009 um 14:49 schrieb Chris Webb:

> Thijs Metsch <Thijs.Metsch at Sun.COM> writes:
>> Installed --> Starting --> Running --> Stopping --> Stopped
>>                                 \---> Suspended --> Starting -->
>> Running
>>                                 \---> Migrated
>>                                 \---> Copied
>> Hope this nice piece of ASCII arts survives :-)
> It did! Could you clarify how 'migrated' and 'copied' differ from
> 'running'?
> (Migration of VMs within a cloud for load-balancing is something that
> should surely be completely user-transparent. Is this intended for
> some other
> purpose?)
> Also, I don't follow what your 'installed' and 'starting' states are
> for.
> Surely our virtual machine is either running or not: we can't
> distinguish from outside whether a guest OS has fully started or not,
> even if we believe such a distinction is well-defined.
> Cheers,
> Chris.
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> occi-wg mailing list
> occi-wg at ogf.org
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Alexander Papaspyrou
alexander.papaspyrou at tu-dortmund.de

Intel Ireland Limited (Branch)
Collinstown Industrial Park, Leixlip, County Kildare, Ireland
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