This issue’s utility by Carsten Flensburg is auxiliary storage lower limit exit program CBX913, which sends a break message to all user profiles with a user class of *SYSOPR when a critical auxiliary storage pool shortage is detected. If the user in the *SYSOPR class is not signed on when the message is sent, the message goes to the user profile’s message queue.
The QSTGLOWLMT system value specifies the threshold of free ASP disk space available that, when reached, will call exit program CBX913. For example, if QSTGLOWLMT contains 8.0000, CBX913 will be called when only 8% of the system ASP is available and 92% is used.