...
{
"name": "hagroup name",
"members": [ "node1234", ... ],
"updated": <update time stamp>
}Exchange APIs:
Create a new node group. The caller must have permission to modify all the nodes listed in the body (shown above). The Exchange will set a reference to this object onto all the node resources listed in the body. The Exchange will return an error (409) if one of the nodes is already in an hagroup. To remove a node from a group, use the PUT API to provide the list of nodes that should be in the group.
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