INZU544E LOAD OPERATIONS ON hostname HOST MUST TARGET THE SAME INSTANCE
Explanation
The control file concerned is specifying several load steps for different tables on the specified host. When several load steps on the same host are requested by a unique Optim™ High Performance Unload task, all of the steps must be specified against exactly the same Db2® instance.There are at least two load operations specified on the host, but their respective instance name specifications differ.