Common Storage Area allocated for user connections

HCL Workload Automation for Z allocates memory blocks sized to 64KB in the common storage area (CSA) to support the communication between the engine and the remote user interfaces (ISPF, Dynamic Workload Console, and PIF). Every active connection is by default allocated a 64KB memory block.

This provides good performance when running sizeable queries on the plan, but if you are worried about the memory consumption (for example, 300 concurrent users will consume 19MB of CSA), you can reduce to 32KB the size of the memory blocks. To do this, specify NO for the LARGEUSERBUFFER keyword of the JTOPTS initialization statement.