PI83079: DB2 ADMIN TOOL TABLE SPACE MAINTENANCE RECOMMENDATIONS MAY INCORRECTLY RECOMMEND A REORG

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• When requesting DB2 Performance Queries (option 3)->Table Space
  maintenance recommendations (sub-option 14), Admin Tool uses
  calculations from DB2 stored procedure DSNACCOR, and so may
  incorrectly recommend a reorg for the tablespace.
  With this APAR, Option 3.14 uses the calculations from DB2
  stored procedure DSNACCOX to recommend REORGs. On panel
  ADB2314T 'Input Parameters for Real-Time Statistics'
  RRTINSUPDDELPCT option has been replaced with
  RRTINSERTSPCT and RRTDELETESPCT in order to mimic the
  calculations done by DB2 procedure DSNACCOX for REORG
  recommendations:
   Ratio, as percent, of INSERTs to total rows or LOBs
  
     since last REORG . . . . . . . . . . . . . . . . (25)
     (RRTInsertsPct)
  
  
  
   Ratio, as percent, of DELETEs to total rows or LOBs
  
     since last REORG . . . . . . . . . . . . . . . . (25)
     (RRTDeletesPct)
  

Local fix

• N/A
  

Problem summary

• ****************************************************************
  * USERS AFFECTED: Users of the DB2 Administration Tool         *
  *                 for z/OS who use Option 3.14 to execute      *
  *                 the table space maintenance                  *
  *                 recommendations.                             *
  *                                                              *
  ****************************************************************
  * PROBLEM DESCRIPTION: Option 3.14 (Table Space                *
  *                      Maintenance Recommendations)            *
  *                      may incorrectly recommend               *
  *                      a REORG.                                *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  Option 3.14 uses calculations from DB2 procedure
  DSNACCOR, and may incorrectly recommend that a
  REORG be performed. The DB2 supplied procedure
  DSNACCOX does not make such a recommendation
  when the same input values are used.
  

Problem conclusion

• Option 3.14 now uses the calculations from DSNACCOX
  to recommend REORG.  On panel ADB2314T 'Input
  Parameters for Real-Time Statistics' RRTINSUPDDELPCT
  option has been replaced with RRTINSERTSPCT and
  RRTDELETESPCT in order to mimic the calculations done
  by DB2 procedure DSNACCOX for REORG recommendations:
  
   Ratio, as percent, of INSERTs to total rows or LOBs
     since last REORG . . . . . . . . . . . . . . . . . . (25)
     (RRTInsertsPct)
  
   Ratio, as percent, of DELETEs to total rows or LOBs
     since last REORG . . . . . . . . . . . . . . . . . . (25)
     (RRTDeletesPct)
  

Temporary fix

Comments

APAR Information

• APAR is sysrouted FROM one or more of the following:

• APAR is sysrouted TO one or more of the following:

Modules/Macros

•    ADB2314T
  

Fix information

• Fixed component name

  DB2 ADMIN TOOL

• Fixed component ID

  568851500

Applicable component levels

• RB20 PSY UI49874

     UP17/08/31 P F708

• RC10 PSY UI49875

     UP17/08/31 P F708

Fix is available

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