Alexander, We are defining an API for end users of cloud infrastructures, and not an API for the dynamic management of VMs in clusters/data centers. I think that the scope is clearly defined in the charter. Thanks -- Ignacio M. Llorente, Full Professor (Catedratico): http://dsa-research.org/doku.php?id=people:llorente DSA Research Group: web http://dsa-research.org and blog http://blog.dsa-research.org Globus GridWay Metascheduler: http://www.GridWay.org OpenNebula Virtual Infrastructure Engine: http://www.OpenNebula.org On 21/04/2009, at 11:16, Alexander Papaspyrou wrote:
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?
-Alexander
Am 17.04.2009 um 14:49 schrieb Chris Webb:
Thijs Metsch <Thijs.Metsch@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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-- Alexander Papaspyrou alexander.papaspyrou@tu-dortmund.de
<Alexander Papaspyrou.vcf>
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