[one-users] Match-making scheduler question

Ignacio M. Llorente llorente at dacya.ucm.es
Thu Nov 18 07:09:28 PST 2010


> I'm writing a survey on Clouds for research purposes. I have some questions
> related to the match-making scheduler that OpenNebula uses:
> 1. it's not clear for me if the placement policies can be configured per VM
> type or per VM instance, could you clarify this?

The Requirements and rank expressions are given in the VM description file
(template), so  they can be configured per VM instance. However when using a
cloud interface, the user can not specify these attributes and so are
defined by the cloud administrator per VM type.

> 2. are the placement policies configurable per cloud client or for the
> whole cloud platform?

Both scenarios can be implemented.

> 3. is it possible to configure the policies in such a way as to distribute
> a client's VMs across the physical hosts in such a way as to reduce the
> probability of platform failure as a result of hardware failure? Is this
> do-able without modifying the source code of OpenNebula?



> Thanks very much,
> Adrian Muresan
> _______________________________________________
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> Users at lists.opennebula.org
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Ignacio M. Llorente, Full Professor (Catedratico):
DSA Research Group:  web http://dsa-research.org and blog
OpenNebula Open Source Toolkit for Cloud Computing:
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