Maintaining a secure Exadata DB system in the best working order requires you to perform the following tasks regularly:
- Patching the grid infrastructure and Database software on the compute nodes. See Patching an Exadata DB System for information and instructions.
- Updating the operating system and the tooling on the compute nodes. See Updating an Exadata DB System for information and instructions.
In addition to the maintenance tasks you perform, Oracle manages the patching and updating of all other infrastructure components, including the physical compute nodes (Dom0), network switches, power distribution units (PDUs), integrated lights-out management (ILOM) interfaces, and the Exadata storage servers.
These Oracle updates occur on a quarterly basis, typically in January, April, July, and October. Occasionally, Oracle might need to update your system apart from the regular quarterly updates to apply time-sensitive changes such as security patches. While you cannot opt out of these infrastructure updates, Oracle alerts you in advance through the Cloud Notification Portal to help you plan for them. For further information about the update policy and details such as the duration and impact on your system's availability and performance, see Oracle Database Cloud Exadata Service Supported Software Versions and Planning for Updates.