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A failover group is a group that contains the resource that can be run at a single node at a time.
A failover group switches to the standby node when the main managed resource is failed. The resource in this group only runs at the available nodes.
For instance, a virtual IP address cannot be used at the active node and the standby node at the same time. In addition, if a virtual IP address causes troubles, it will switch service failover the group to the standby node.
Support Parallel Group
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