Linux operating systems

Updating kernel parameters on Linux

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IBM Db2 automatically increases interprocess communication (IPC) kernel parameter values to the preferred settings.

About this task

To update the kernel parameters on Linux® servers, complete the following steps:

Procedure

  1. Issue the ipcs -l command to list the parameter values.
  2. Analyze the results to determine whether any changes are required for your system.
    If changes are required, you can set the parameter in the /etc/sysctl.conf file. The parameter value is applied when the system starts.

What to do next

For Red Hat Enterprise Linux 6 (RHEL6), you must set the kernel.shmmax parameter in the /etc/sysctl.conf file before automatically starting the IBM Storage Protect server on system startup.

For details about the Db2 database for Linux, see the Db2® product information.