Best Practices

  • Ensure that PowerCap policy is disabled and the BIOS system profile is set to ‘Performance’ on the OIM.

  • Always execute playbooks within the directory they reside in. That is, always change directories (cd) to the path where the playbook resides before running the playbook.

  • Ensure that there is at least 50% (~50GB) free space on the OIM root partition before running Omnia. To maintain the free space required, place the required ISO files in the /home directory.

  • Use a PXE mapping file even when using DHCP configuration to ensure that IP assignments remain persistent across OIM reboots.

  • Avoid rebooting the OIM as much as possible to ensure that all network configuration does not get disturbed.

  • Review the prerequisites before running Omnia scripts.

  • Ensure that the firefox version being used on the RHEL/Rocky Linux OIM is the latest available. This can be achieved using dnf update firefox -y

  • It is recommended to configure devices using Omnia playbooks for better interoperability and ease of access.

  • Ensure that the /var partition has adequate space to execute commands and store images.

  • Run yum update --security routinely on the RHEL/Rocky Linux OIM for the latest security updates.

If you have any feedback about Omnia documentation, please reach out at omnia.readme@dell.com.