Recover from system hang or loop condition

Use this procedure to help resolve system hang or loop conditions.

  1. See the information in Perform a main storage dump to gather data on the current state of the system during the loop or hang condition. This information is critical for problem solving. Valuable diagnostic information will be lost if you do not collect the storage dump information before you try to perform an IPL.
  2. Contact your hardware service provider after performing the main storage dump.