After you identify the target service activation libraries via the SERV_LPALIB and SERV_LINKLIB parameters in the BPXPRMxx member, you can then activate the service items.

For most service items that can be activated dynamically, issuing F OMVS,ACTIVATE=SERVICE is sufficient to activate the service item. But for a small number of service items, the procedure to activate a fix or set of fixes might require the dynamic LPA add of BPXINLPA and its ALIASes. This is the case only if the maintenance to be activated affects one of the ALIASes of BPXINLPA. The accompanying documentation provided by IBM® for a service item (for example, .++HOLD) will indicate if this extra step is required to activate a service item.

The set of service items to be activated and the amount of ECSA and OMVS address space storage consumed for those service items are indicated in messages displayed by the F OMVS,ACTIVATE=SERVICE command. The issuer of the command is then prompted on whether to proceed with the activation based on this information.

Tip: The activation of a set of service items potentially causes the additional consumption of both ECSA and OMVS address space storage that is permanent regardless of whether the service items are deactivated. A dynamic activation that involves fixes to modules in LPA resident load modules will cause additional consumption of ECSA. Careful consideration should be given to ensure that this additional ECSA storage consumption does not cause a problem for your system.

F OMVS,ACTIVATE=SERVICE

If a fix capable of dynamic activation is found that cannot be activated due to earlier service found on the active system or missing parts in the target activation libraries, the activation will fail.