Prepare for an upgrade and perform post-upgrade activities to verify the operational state of the SDDC.

Planning for the SDDC Upgrade

  • Schedule a maintenance window that is suitable for your organization and tenants.

    You organize upgrade sequences to allocate a single maintenance window to the upgrade of each SDDC layer.

  • Allocate time in your maintenance window to run operational verification tests. For example, critical business functions, integration validations, and system performance. Add time to respond to incidents or errors without exceeding your maintenance window.
  • Plan for any potential impact to tenant workloads during an upgrade. If capacity allows, use vSphere vMotion to migrate tenant workloads temporarily to the other compute clusters during an upgrade.
  • Communicate the upgrade to your organization and tenants.
  • Communicate the upgrade to your VMware Technical Account Manager and Global Support Service representative, as applicable.
  • Perform and verify the backups and snapshots for the SDDC management components.
  • Ensure the management virtual machines or appliances are not running on snapshot before you perform the upgrade of the respective layer. Guidance for each layer discusses the use of snapshots.

Considerations for an Upgrade Failure

  • Collect the product support bundles for the failed product upgrade and contact VMware Technical Support.
  • Roll back the component upgrade.

    If a component upgrade fails, the order of operations ensures that backward compatibility and interoperability are maintained between the layers. You can roll back to a previous version of the components in a layer.

    Important:

    The rollback of ESXi and vSAN is not supported.

    The rollback of an SDDC after more than one layer has been successfully upgraded is not supported.

Post-Upgrade Operations

After completing an upgrade, consider the following practices.

  • Verify the business functionality, integration, and system performance. For more information, see the VMware Validated Design Operational Verification documentation.
  • Conduct an upgrade retrospective discussion. Document the areas for a process improvement and incorporate them in the next upgrade.