An operator issued a SETXCF FUNCTIONS command to ENABLE or DISABLE the COUPLINGTHININT installation-controllable option. The request was accepted by the system and the status of the COUPLINGTHININT installation-controllable optional function has been set to either ENABLED or DISABLED as requested by the SETXCF FUNCTIONS command.

result indicates whether the system has begun processing coupling thin interrupts when requested to be enabled or stops processing coupling thin interrupts when requested to be disabled.

In the message text:

results

HARDWARE SUPPORT NOT INSTALLED

The required hardware support for coupling thin interrupts which provides for improved performance and throughput for coupling facility workloads is not installed on this system.

COUPLING INTERRUPT HANDLER NOT REGISTERED

A call to IOS Adapter Services to register a coupling interrupt handler failed. Coupling thin interrupts processing is not enabled. See message IXL163I in the system log to determine the reason for the registration failure and suggested action.

COUPLING THIN INTERRUPTS ALREADY ENABLED

Coupling thin interrupts is already enabled in the channel subsystem.

COUPLING RELATED ADAPTER INTERRUPTS ENABLED

Coupling thin interrupts is enabled in the channel subsystem to deliver coupling related adapter interrupts.

COUPLING THIN INTERRUPTS DISABLED

Coupling thin interrupts has been disabled in the channel subsystem. Although coupling thin interrupts is disabled, the system will continue to process coupling related workloads as efficiently as possible.