Overview of QPF_OPTIONS

When QPF is active, it continuously monitors the state of the IMS message queues to determine which processing phase should be in effect. QPF takes action based on tasks that you define for each phase. You use the QPF_OPTIONS command set to define the thresholds and tasks for each phase.

A phase starts when either of the IMS message queue data sets (SHMSG or LGMSG) exceed the pre-defined phase threshold. A phase ends when it meets reset criteria, which consist of a percentage value and a time. To meet the reset criteria, both queue data sets must stay below the percentage value for the time indicated.

Once you have defined the QPF options, QPF monitors and resolves most message queue overflow situations with little or no intervention from you. QPF automatically initiates the tasks that you define for the QPF options at the appropriate time.

Although QPF is primarily an automated facility, authorized users can manually initiate some tasks while QPF is active. Authorized users can intervene to resolve any situation that the QPF_OPTIONS command set does not automatically resolve.