[Pacemaker] stop resource if cluster is "degraded"

[Thomas Müller]

>>> I've got a 2 node cluster with 4 VM's. If a node fails 2 of them
>>> should be stopped (the dev machines) to prevent the physical machine
>>> from swap'ing.

>> 
>> Do this with utilizations and priority:
>> 
>> http://clusterlabs.org/doc/en-US/Pacemaker/1.1/html/
Pacemaker_Explained/
> _utilization_attributes.html
>> 
>> http://blog.clusterlabs.org/blog/2010/feature-spotlight-utilization/
>> 
> Thanks alot! This will defintely do what i want to configure.
> 

just tested this utilization thing.  works like a charm. The 
VirtualDomain ocf agent even sets cpu and hv_memory automatically. 

So I only needed to set utilization attributes on the nodes, set priority 
of the productive vm's to 1 (default is 0) and activate the placement-
strategy=utilization

- Thomas