0B4

Explanation

A unit information module (UIM) specified an undefined device number.

System action

The system issues message IEA525W to identify the UIM in error. The system enters non-restartable wait state X'0B4'.

System programmer response

See message IEA525W for the name of the failing UIM. Check if the failing UIM is an installation-provided or IBM®-provided UIM. If it is an IBM-provided UIM, search problem reporting databases for a fix for the problem. Provide the following search argument:
  • WS/D0B4: Wait state code
  • MS/IEA525W: Message identifier
  • VAlu/Cuim_name: Message variable text
If no fix exists, ask the operator to obtain the stand-alone dump. Contact the IBM Support Center. Provide the stand-alone dump.

Source

Input/output supervisor (IOS)