PH69992: SOME SENSOR DATA ELEMENTS FOR FREE SPACE OF HISAM HAVE INCORRECT VALUES

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• Some sensor data elements for free space of HISAM have incorrect
  values
  

Local fix

• N/A
  

Problem summary

• ****************************************************************
  * USERS AFFECTED: IBM IMS High Performance Pointer Checker     *
  *                 for z/OS Version 3 Release 1 (FMID=HPC2310)  *
  *                 users who run HD Pointer Checker (HDPC)      *
  *                 stand-alone job for HISAM database with      *
  *                 SENSOR=YES in PROC statement.                *
  ****************************************************************
  * PROBLEM DESCRIPTION: Running HD Pointer Checker (HDPC)       *
  *                      stand-alone job for HISAM database      *
  *                      with SENSOR=YES in PROC statement may   *
  *                      calculate incorrect values in data      *
  *                      elements related to free space in a     *
  *                      data set group.                         *
  ****************************************************************
  * RECOMMENDATION: Apply the maintenance for this APAR.         *
  ****************************************************************
  Running HD Pointer Checker (HDPC) stand-alone job with
  SENSOR=YES in PROC statement triggers DB Sensor to collect
  sensor data. When HDPC processes HISAM database in above
  condition, there are incorrect values in following data
  elements related to free space in a data set group.
  - DB_BYTES_FREE_SPACE
  - DB_AVG_NUM_FSE
  - DB_NUM_FSE_MIN
  - DB_NUM_FSE_MAX
  - DB_PCT_NUM_NOREUSE_FSE
  - DB_PCT_NUM_FRAGD_FSE
  - DB_BYTES_FREE_SPACE
  - DB_PCT_BYTES_FREE_SPACE
  
  This problem is caused by the calculation of the HISAM free
  space size for data elements which did not factor in the VSAM
  control information (RDF and CIDF) in control intervals.
  
  This problem occurs when there is more than one logical record
  in control intervals and the multiple of the logical record
  size is within the range of the size of control intervals and
  the size of control intervals minus the VSAM control
  information. Also, this problem occurs regardless of HASH
  option in PROC statement.
  

Problem conclusion

• HDPC has been modified to fix the error.
  

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:

  UO06985

Modules/Macros

• FABPSHI0
  

Fix information

• Fixed component name

  IMS POINTER CHE

• Fixed component ID

  5655E0900

Applicable component levels

• R310 PSY UO06985

     UP26/03/06 I 1000

Fix is available

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