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  • 1.  AIX 6 and memory bottelneck

    Posted 03/22/11 06:12 PM

    Originally posted by: kaka@hp


    Hi Experts,

    we are using HP Openview to monitor our servers. i see that OVO (Hp Openview Operations manager) reports a memory bottleneck on one of our system every night with value of 97.25%.

    upon checking using svmon i see below output.

    size inuse free pin virtual available
    memory 21.0G 20.4G 641.37M 2.68G 11.6G 9.18G

    so if we see (20.4/21)*100=97.14

    which matches with the OVO report.

    But i do not see any performance issue on the server but management is concerned about this OpenView alert. Can you help me to understand how memory management works on AIX 6.1? where it has difference with AIX 5.x.
    #AIX-Forum


  • 2.  Re: AIX 6 and memory bottelneck

    Posted 03/23/11 01:12 AM

    Originally posted by: SystemAdmin


    your monitoring application is too simplistic.

    in short: free memory is a waste of ressources, so the os puts useful stuff there like cached disk blocks.

    in long: start here: http://www.ibm.com/developerworks/aix/library/au-aixoptimization-memtun1/

    most of the article is true for aix6 and 7 still whilst some defaults were change.

    cheers
    #AIX-Forum


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