Use this topic to learn about considerations when you are not a power-handling program to handle controlled system shutdown.
You can specify that you do not have a power handling program by using the default for the QUPSMSGQ, which is QSYSOPR. When you use the default, the system sends all power-related messages to QSYSOPR. You should set the QUPSDLYTIM to something other than *NOMAX.
Normally, you do not supply power to the workstation devices. When utility power is interrupted, the system remains active, but the workstation jobs typically end abnormally. If utility power is restored while the system is operating on the uninterruptible power supply, the system remains active and the work station jobs can be restarted.
If the QUPSDLYTIM timer ends or the weak battery signal occurs, the system saves main storage and powers down. Select a value for QUPSDLYTIM that is appropriate for your uninterruptible power supply and your system size.
If the system is powered down while on uninterruptible power supply, the QPWRRSTIPL determines whether an IPL is performed when utility power is restored. The default is to not perform the IPL.