How can I achieve a configuration with a RHEL 6 or 7 High Availability cluster with pacemaker where a resource refuses to run on a certain node, and the resources it colocates with prefer to run on that banned node?
Issue
- I want to configure a resource to never run on a specific node, to colocate that resource with another, and to prefer that resource its colocated with to prefer to run on the banned node.
- How can I configure a cluster such that a resource will only start when the resources it must colocate with are forced to move to a secondary node?
Environment
- Red Hat Enterprise Linux (RHEL) 6 or 7 with the High Availability Add-On
pacemaker
- Two resources such that:
- resourceA prefers to run on nodeA
- resourceB must colocate node resourceA
- resourceB refuses to run on nodeA
Subscriber exclusive content
A Red Hat subscription provides unlimited access to our knowledgebase, tools, and much more.