1 Reply Latest reply: Apr 5, 2012 4:00 PM by bobthesungeek76036 RSS

    DISM on Solaris x86, recommended or not?

    User804655-Oracle
      hi,

      Due to an Sr, asking on DISM on Solaris 10 on x86 architecture, I came across a contradiction in two Oracle's white papers:

      First, http://www.oracle.com/technetwork/articles/systems-hardware-architecture/using-dynamic-intimate-memory-sparc-168402.pdf says:

      "Oracle recommends that DISM should always be turned off on x86-based systems running Oracle Solaris 10."
      "Note that while ISM can be used on any Oracle Solaris release from 2.6, DISM should not be used
      with any Oracle Solaris release before Oracle Solaris 9 Update 2 (the 8/03 release). Oracle Solaris 10 is,
      however, the earliest recommended release for use with DISM on SPARC-based systems. DISM is not
      recommended for use with Oracle Solaris on x86-based systems."

      While http://www.oracle.com/technetwork/articles/systems-hardware-architecture/deploying-oracle-solaris-10-x86-168406.pdf says:

      Oracle Solaris 10 on x86 features which are particularly relevant to Oracle DBAs include:
      • Dynamic SGA tuning of Oracle’s database memory using Oracle Solaris’s Dynamic Intimate Shared
      Memory (DISM) feature. When running Oracle Database on Oracle Solaris, the amount of physical
      memory consumed by the SGA can dynamically grow or shrink to meet continually changing
      resource requirements of the database.

      1. Can you help me to understand which one is the correct information? Or if they are not really contradictory?

      2. Is is recommended to use DISM with Oracle on Solaris 10, on x86 based machine? Or on other Solaris versions?


      Thanks,
      Simona