On 06/25/2012 12:14 PM, Stallmann, Andreas wrote:
but crm won’t let me put Master/Slave resource into a group. Why is that?
I don't think it's possible to specify the state a resource must be in (master) within a group constraint. However, groups are just (modulo bugs) shorthand for order and colocation constraints. It's a little more verbose, but you should be able to accomplish what you need with proper ordering and colocation constraints and no group.
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