The approach used by the Range Aware Key Server to generate primary keys hinges on ensuring that non-overlapping key ranges are allocated to every system. The Range Aware Key Server will then ensure that all of the primary keys on a given system are generated from the range(s) assigned to that system. Therefore, the primary keys generated by each system will be unique.
So, at system install (or upgrade) time, the system administrator allocates a unique primary key range from which all primary keys provided by the Range Aware Key Server implementation will be generated. Please refer to the CTM Setup Guide chapter in the Configuration Transport Manager guide for information on how the range allocations are configured.