Disk shared memory size of 13187020 exceeds maximum allowed size of 11829248

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Data Modeling - DataStage ETL
Written by Ross Alvarez   
Monday, 25 September 2006 20:09
If you changed your uvconfig values, for example the T30FILE, you would need to do uvregen. But you will probably get an error saying...

Disk shared memory size of 13187020 exceeds maximum allowed size of 11829248

This is because, the shared memory settings DMEMOFF also needs to be adjusted. But what is the right value?

To get the right value, do the following. Remember, you have to put your changes on your uvconfig file first.

  1. Stop the server
    $DSHOME/bin/uv -admin -stop

  2. Execute the following to get the DMEMOFF recommended vsalue
    $DSHOME/bin/shmtest -f $DSHOME/uvconfig

    You will get something like this:
    Recommended attach values
       Dmemoff    = 0xf7838000
       Pmemoff    = 0xf7ed8000
       Cmemoff    = 0xf7edc000
       Nmemoff    = 0xfde3c000

  3. Edit uvconfig and put change the above for settings in your uvconfig.

  4. Regenerate the configuration change
    $DSHOME/bin/uv -admin -regen

  5. After, you should not get any error, restart DataStage
    $DSHOME/bin/uv -admin -start

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