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This page describes how to upgrade major versions of the operating systems of the servers running your Apigee Edge for Private Cloud installation.
Before starting any upgrade, you must verify that your target operating system version is supported by your current Apigee Edge for Private Cloud version. See Edge for Private Cloud supported versions for information on supported versions of these operating systems.
Upgrade Approaches
Choose from one of the following methods for performing an OS upgrade:
New data center installation
This approach involves setting up an entirely new parallel data center (DC) on the upgraded OS version, and then decommissioning the old data center, as follows:
- Set up a new Apigee data center with servers containing the new version of the operating system. See Adding a data center.
- Install Edge for Private Cloud on the new servers, using a silent configuration file that expands on the existing installation.
- Add the servers to an existing cluster.
- Finally, decommission the old data center, as explained in Decommissioning a data center.
Node by node operating system upgrade (rolling upgrade)
The Node by node approach allows you to upgrade the operating system of your cluster's servers in-place, one machine/node at a time, without the need to set up a complete new data center.
The general steps for each node are:
- Decommission the old node for a specific component.
- Provision a new node with the target operating system version.
- Install and configure the same component on the new node.
- Integrate the new node into the cluster.
To maintain cluster availability, the replacement is done sequentially across the nodes. For detailed step-by-step instructions on this process, see the Node by node operating system upgrade for Apigee Edge for Private Cloud topic.