Reviewing the sysctl Parameters

If you do not want the DPK setup script to overwrite the sysctl parameters, you can perform one of these customized deployments:

• If the existing sysctl settings on your system meet the DPK requirements, you can change the value of the parameter setup_syscfg from true to false.

  This change will prevent the DPK setup script from overwriting the parameters.

  See "Completing the DPK Initialization with Customizations," Preparing the Customization File to Change the setup_sysctl Parameter.

• If you want to allow the DPK setup script to change the sysctl settings on your system, retain the parametersetup_syscfg: true, and specify values for the following sysctl parameters that are greater than those given in the generated psft_unix_system.yaml file.

  sysctl:
      kernel.msgmnb:                65538
      kernel.msgmni:                1024
      kernel.msgmax:                65536
      kernel.shmmax:                68719476736
      kernel.shmall:                4294967296
      kernel.core_uses_pid:         1
      net.ipv4.tcp_keepalive_time:  90
      net.ipv4.tcp_timestamps:      1
      net.ipv4.tcp_window_scaling:  1
      net.ipv4.ip_local_port_range: '10000 65500'

  See "Completing the DPK Initialization with Customizations," Preparing the Customization File to Overwrite the sysctl Parameters.