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  1. #1
    Join Date
    Feb 2008

    Unanswered: Migration from 32 to 64 bit in HADR env

    Hi folks,

    I need to migrate DB2 8.2 32 bit to 8.2 64 bit in HADR setup running in AIX 5.3, in order to enchance performance. Firstly, I would like to know can I updgrade both the servers or do I need to updagrade Primary server and then recreate HADR on 64 bit ???

    Please help me with the best solution.

  2. #2
    Join Date
    May 2003
    I believe you will need to create a new 64-bit instance and start HADR from scratch. I would use db2look/db2move to move to the new instance.
    M. A. Feldman
    IBM Certified DBA on DB2 for Linux, UNIX, and Windows
    IBM Certified DBA on DB2 for z/OS and OS/390

  3. #3
    Join Date
    Jun 2003
    Toronto, Canada
    Provided Answers: 1
    I don't think that the change in instance bitness affects databases. I have not tried such configuration, but I don't really see why you cannot just modify the stand-by instance, fail over, then modify the primary.
    "It does not work" is not a valid problem statement.

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