Ensure enough memory

To maximize available memory and scan resources, the High-Performance Loader (HPL) automatically sets the PDQPRIORITY environment variable to 100, if it is not already set. If the PDQPRIORITY environment variable is set, HPL uses that value.

If the PDQPRIORITY environment variable is set to 0 or if the PDQPRIORITY environment variable is disabled on the database server, then HPL cannot unload multiple devices.