Starting the system after it ends abnormally

Use this information to start the system after it ends abnormally.

When your system stops normally, it does the following actions:

  • Writes changed pages of information from memory to auxiliary storage.
  • Closes access paths and files.
  • Ends programs and jobs at the natural stopping points.

If your system stops without having time to do these things, it is called an abnormal end. Your system might end abnormally for the following reasons:

  • A power failure.
  • A disk failure, if you do not have mirrored protection or device parity protection.
  • A failure in the processor.
  • Failure of a critical operating system program.
  • Operator action (forced power down).