The MIH (Missing Interrupt Handler) is a z/VSE Supervisor routine, that gets control regularly. It verifies, if a device did not complete an I/O after a defined time interval. The I/O Supervisor will then try to determine, why the device did not answer. An appropriate message may be written to the z/VSE console. If the device is in error, a record will be written to the recorder file too.
You may set the time interval with the Attention Routine SIR MIH command and enable or disable the MIH process in z/VSE. The time interval may be... [More]