protected static int[] createUniquePorts() {
    return AvailablePortHelper.getRandomAvailableTCPPorts(1);
  }
Create a server that has a value for every key queried and a unique key/value in the specified
Region that uniquely identifies each instance.

@param vm the VM on which to create the server
@param rName the name of the Region to create on the server
@param port the TCP port on which the server should listen
geode-dunit/src/main/java/org/apache/geode/cache30/ClientServerTestCase.java