In addition, two internal techniques support data set creation and load-mode processing. A user cannot specify these techniques, which the system invokes internally if the data set is in load mode (HURBA=0) and if the following items specify the SYSTEM keyword:

• RECORD ACCESS BIAS for the related data class
• ACCBIAS in the AMP= parameter of the data set JCL

The two techniques are Create Optimized (CO) and Create Recovery Optimized (CR).

Create Optimized (CO): Maximum buffers to optimize load performance if you specify SPEED in the data definition.

Create Recovery Optimized (CR): Maximum buffers to optimize load performance if you specify RECOVERY in the data definition.