PM33428: "GETPAGES PER SYNCHRONOUS I/O" IS INACCURATE. GETPAGES REQUESTSIS NOT THE SUM OF SEQUENTIAL AND RANDOM REQUESTS.

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• Under the navigator item "BUFFER POOL MANAGEMENT", the "GETPAGES
  per Synchronous I/O" value in the Ratio workspace is sometimes
  negative.  In BUFFER POOL DETAIL, the "Getpages per Sync I/O" is
  sometimes negative and the Getpages Requests is sometimes not
  the sum of the following Sequential and Random fields.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: OMEGAMON XE for DB2 PE/DB2PM                 *
  *                 users of component:                          *
  *                 -   The component that transfers DB2         *
  *                     monitoring data collected by the         *
  *                     OMEGAMON collector to the TEMA           *
  *                 -   Classic Interface                        *
  ****************************************************************
  * PROBLEM DESCRIPTION: On the ZBP screen for a DB2 V8 or V9    *
  *                      system, the sequential and random       *
  *                      getpages requests do not add up to the  *
  *                      total if DB2 is up a long time.         *
  *                      GetPage rates in TEP Buffer             *
  *                      Pool Management workspaces may be       *
  *                      inaccurate.                             *
  *                                                              *
  ****************************************************************
  * RECOMMENDATION: Apply this PTF                               *
  *                                                              *
  ****************************************************************
  PROBLEM SUMMARY:
  DB2 gives us this information in fullwords which may overflow in
  V8 and V9 if DB2 is up long enough.
  
  PROBLEM CONCLUSION:
  Detect an overflow in the getpages requests.
  

Problem conclusion

• Detect an overflow in the getpages requests.
  
  KEYWORDS : ZBP GETPAGE RATES TEP BUFFER POOL MANAGEMENT
  

Temporary fix

Comments

APAR Information

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

  PK93398

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

  UK66602

Modules/Macros

•    KO2CSTAB KO2CST5A KO2CST5K KO2CST52 KO2DXS1A
  KO2DXS1K KO2DXS12 KO2OST1B
  

Fix information

• Fixed component name

  OM XE DB2PE/PM

• Fixed component ID

  5655OPE00

Applicable component levels

• R510 PSY UK66602

     UP11/04/19 P F104

Fix is available

• Select the PTF appropriate for your component level. You will be required to sign in. Distribution on physical media is not available in all countries.