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Common Technical Question
Question R01
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Description The IOF Job List Menu for RUNNING JOBS has a field titled WHY. The name of this field is REASON. This field contains a 3 character abbreviation for WHY a running task is SWAPPED OUT. The SWR (SWAPRSN) field on the IOF System Monitor contains identical information. What do the abbreviations mean?
 
Answer The IOF WHY field is based on field OUCBSRC in the MVS OUCB control block. IOF converts OUCBSRC from a number to a 3 character abbreviation. The characters are based on comments in the OUCB description.

An expanded version of the swap reasons can be found in IOF SOURCE data set member EASYJQE at label "REASON". Beginning with IOF release 7H, this table is:

------WHY-----Nbr-----Description-----------------------
      OWT       1     OWAIT
      IWT       2     IWAIT
      LNG       3     LONG WAIT
      AUX       4     AUXILLIARY STORAGE SHORTAGE
      MEM       5     REAL MEMORY SHORTAGE
      DET       6     DETECTED WAIT
      REQ       7     REQUESTED BY JOB
      ENQ       8     ENQ EXCHANGE SWAP
      EXC       9     EXCHANGE ON RECOMMENDATION
      UNI      10     UNILATERAL
      TRN      11     TRANSITION
      ICU      12     IMPROVE CENTRAL STORAGE USE
      IPR      13     IMPROVE SYSTEM PAGING RATE
      MRL      14     MAKE ROOM FOR OUT-TOO-LONG USER
      APC      15     APPC WAIT
      OEI      16     WAIT TO PROCESS MORE OE WORK(INPUT)
      OEO      17     WAIT TO OUTPUT  MORE OE WORK
 

 
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