The documentation portal is undergoing maintenance. During this period, you can't create any new user credentials. If you do, you'll need to recreate the user credential after the maintenance period ends.
Optionally, you can set the following environment variables to improve the load performance:
SSAUDBPARALLELLOAD=<Integer>
SSAUDBSEQUENCES=Yes
IBM DB2 UDB prevents parallel loading when you load a table. To allow parallel loading, configure the SSAUDBPARALLELLOAD environment variable to a higher value that indicates the number of allowed parallel loads. A value of 999999 indicates unlimited parallel loads.
By default, IBM DB2 UDB does not use sequences. Set the SSAUDBSEQUENCES environment variable to Yes to use sequences.