Multiple data load buffers can exist on a single aggregate storage cube. The data load buffers that Essbase creates for allocations and custom calculations are not configurable. You can, however, configure the data load buffers that you create for data loads and postings.

If you want to perform allocations and custom calculations concurrently with data loads and postings, set the resource usage for the data load buffers that you create for data loads and postings to a maximum of 0.8 (80%). The lower you set the resource usage setting, the greater the number of allocations and custom calculations that can run concurrently with data loads and postings. You can also configure the amount of time Essbase waits for resources to become available in order to process load buffer operations.

To configure data load buffers, use the alter database MaxL statement with the initialize load_buffer grammar. You can also optimize aggregate storage data loads using configuration settings.