Using the Queueing Manager Services

The queueing manager services are intended for queueing managers to use to manage server (execution) address spaces and the work requests they process to meet service class performance goals. Through queueing manager services, workload management maintains the queues for passing work requests from the queueing manager to its servers. A queueing manager is a subsystem that queues work requests to workload management for execution in server address spaces.

Workload management dynamically starts and maintains server address spaces as required to meet the queueing manager's workload. Therefore, installations do not have to manage the address spaces manually, nor do they have to monitor workload fluctuations that change the number of address spaces needed for the work to meet its goals. Workload management automatically adjusts to changes in the workload.

For queue managers using the services, workload management spreads the work across multiple address spaces, providing workload isolation and greater scalability based on workload demands. For a queueing manager that queues and executes work all in the same address space, sometimes encountering storage overlay problems, the services provide an incentive to change to a multiple address space configuration.

This chapter describes how to use the queueing manager services, and suggests the information you should provide to your customers so they can properly set up the required service definitions.