This topic describes some causes of an abnormal initial program
load (IPL).
An abnormal IPL can be caused by any of the following reasons:
- Using the End Job Abnormal (ENDJOBABN) command. To see if this command
has been used, look for message CPC1124 in the job log.
- Using option 7 (Start a service tool), then option 7 (Operator panel function)
on the Dedicated Service Tool (DST) menu.
- Using the Power button (on the control panel) instead of the Power Down
System (PWRDWNSYS) command.
- Displaying a power failure before all data is written from main storage
to disk.
- Using any B900 xxxx system reference code (where xxxx is any number or
letter) during the start of the operating system phase of the IPL.
- Ending with a system reference code of B900 3F10, if a PWRDWNSYS command
that did not complete, .
- Causing the system to end by any function check in the controlling subsyste
.
- Issuing a PWRDWNSYS command in the primary partition without first powering
down secondary partitions.
- The system going down when database recovery has not completed during
the IPL.
Note: If the ENDJOBABN command is issued, message CPI0990 will
be in QHST. For all other reasons, message CPI091D will be in QHST stating
why the IPL is abnormal.