The initialization/termination programs are logically grouped in separate subtasks. They define one or more servers to MVSSERV, and optionally load the servers and provide resources for them. When MVSSERV ends, it re-invokes your initialization/termination programs to free any server resources and terminate the servers.

Figure 1 shows the position of initialization/termination programs in the logical MVSSERV task structure.

Figure 1. MVSSERV Logical Task Structure

When you design an initialization/termination program, you need to consider what servers it will define, what resources the servers require, and how to package the initialization/termination program in relation to the servers.