Power control system values: Message queue and library
The Message queue and library system value is also known as QUPSMSGQ. You can use this system value to specify the message queue that receives uninterruptible power supply messages and the library where the specified message queue is found.
| Quick reference | |
|---|---|
| Location | From IBM® Navigator for i, select . Right-click on Power Control and click Properties, then select the General tab. |
| Special authority | None. |
| Default value | Message queue - QSYSOPR; Library - QSYS. |
| Changes take effect | Immediately. |
| Lockable | No. |
What can I do with this system value?
You can specify the name of a message queue that receives uninterruptible power supply messages.
If the message queue is not the system operator message queue, then all uninterruptible power supply messages are also sent to the system operator message queue. This system value is meaningful only if your system has the battery power unit feature and has an uninterruptible power supply attached.
When a change in power activates the uninterruptible power supply, this message queue receives the uninterruptible power supply activated message (CPF1816). If the action to take when power failure occurs is set to not automatically power down the system, the following conditions must be met or the system immediately begins to power down.
- The message queue specified in this system value must exist.
- If the message queue is a workstation message queue (or system operator), it must be in break or notify mode.
- If the message queue is not a workstation message queue, it must be allocated by a job.
For all other uninterruptible power supply messages, the message queue does not have to be allocated, or in break or notify mode. If this system value does not specify the name of a valid message queue, a message is sent to the system operator indicating the notification failure, and the system continues processing.
The specified message queue is cleared during a restart. If you assign this value a user's message queue, the user loses all messages in the specified message queue during each restart.
The message queue must exist in the system disk pool (also known as auxiliary storage pool) or in a basic user disk pool.