ZAAPZIIP=NO|YES - You can use the ZAAPZIIP (or ZZ as its alias) parameter
to request the system to run zAAP processor eligible work on zIIP
processors when certain conditions are met. The zAAP on zIIP function is active only when all of the following conditions are true:
ZAAPZIIP=YES is specified, defaulted, or enforced.
- There are (or could be, through dynamic CPU addition) zIIPs defined to this LPAR.
- No zAAPs are defined to this LPAR, whether online, offline or in the reserved state.
- There are no zAAPs installed on the machine or, when there is at least one zAAP installed, the number of installed ZAAPs plus the number of installed zIIPs does not exceed the number of installed standard CPs. The installed processors mentioned in the preceding sentence are those in the configured state only; processors in the standby or reserved state do not apply.
- This LPAR is allowed to find out about the presence of zAAPs on the entire machine. This security protocol is controlled by the Global Performance Data Control setting, described in Processor Resource/Systems Manager Planning Guide,IBM System z10, SB10-7153.
If you specify ZAAPZIIP=NO on a machine that does not
support zAAPs, the system issues message IEA988I and continues as
if you had specified ZAAPZIIP=YES.To correct an error you make in specifying ZZ, you must specify the value on ZAAPZIIP instead of ZZ. The system issues message IEA341A to indicate this situation.
Default Value: YESNote: The default of ZAAPZIIP is NO in z/OS® V1R9 and z/OS V1R10; and the default is YES as of V1R11. Only the alias ZZ is valid in z/OS V1R9 and z/OS V1R10.Associated Parmlib Member: None