2 Upgrade Requirements

Caution:

The granular appliance architecture with built-in redundancy allows administrators to upgrade or patch components without downtime. However, resource capacity and performance might be reduced while an upgrade or patch workflow is in progress.

We recommend that administrators responsible for upgrade or patching notify all Compute Enclave users in advance about such planned maintenance operations.

This is particularly important for users of the Oracle Container Engine for Kubernetes (OKE), because new cluster deployments are not allowed during the maintenance window, and some types of application clusters might experience service interruptions.

Before you start an upgrade procedure, ensure that you have the required permissions and have downloaded the ISO image to a suitable location.