IBM Support

IT21920: ALTER TABLESPACE REDUCE OPERATIONS MIGHT LEAD TO ASYNCHRONOUS HIGH WATERMARKS IN HADR SYSTEMS

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You can track all active APARs for this component.

 

APAR status

  • Closed as program error.

Error description

  • Corrupted HWM tablespace setting may incorrectly allow a
    tablespace resize operation to complete
    Description: If for unknown reasons the HWM setting of a
    tablespace has been set too low, then a resize operation on a
    tablespace
    might be allowed to proceed and reduce the size too much thereby
    removing valid pages from the tablespace.
    This apar fix introduces an additional sanity check to prevent
    this from happening.
    Normally a database restart will allow for the High Water Mark
    to be restored to the correct setting as long as no resize
    operations have taken place.
    

Local fix

Problem summary

  • ****************************************************************
    * USERS AFFECTED:                                              *
    * All users.                                                   *
    ****************************************************************
    * PROBLEM DESCRIPTION:                                         *
    * See Error Description                                        *
    ****************************************************************
    * RECOMMENDATION:                                              *
    * Upgrade to Db2 11.1 Mod 3 Fixpack 3.                         *
    ****************************************************************
    

Problem conclusion

  • See Problem Description above.
    

Temporary fix

Comments

APAR Information

  • APAR number

    IT21920

  • Reported component name

    DB2 FOR LUW

  • Reported component ID

    DB2FORLUW

  • Reported release

    B10

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2017-08-09

  • Closed date

    2018-03-16

  • Last modified date

    2018-03-16

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

    IT20827

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

Fix information

  • Fixed component name

    DB2 FOR LUW

  • Fixed component ID

    DB2FORLUW

Applicable component levels

  • RB10 PSN

       UP

[{"Business Unit":{"code":"BU048","label":"IBM Software"},"Product":{"code":"SSEPGG","label":"DB2 for Linux, UNIX and Windows"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"11.1","Edition":"","Line of Business":{"code":"LOB10","label":"Data and AI"}}]

Document Information

Modified date:
16 March 2018