00B

Explanation
During system initialization, the master scheduler
ended abnormally.

System action
The system ends system initialization. The system
writes a dump. The system enters wait state X'00B'.

Operator response
Do the following: Try to reIPL the system. If unsuccessful, contact the system programmer.
Obtain the dump written by the system.
If the system programmer asks for a stand-alone dump, obtain one.

System programmer response
Search problem reporting databases
for a fix for the problem. If no fix exists, obtain the dump. If no
dump exists, ask the operator to obtain a stand-alone dump. Contact
the IBM® Support Center. Provide
the dump.

Source
Master scheduler