Replace a Node in a Multi-node Deployment

You can use the upgrade process to replace a faulty node in a multi-node deployment.

Before you begin

Ensure the cluster with the faulty node is running EFA 2.3.0 or later.

Ensure you have completed the high-availability prerequisites in EFA Requirements.

Ensure that EFA is not deployed on the replacement node.

During this process, the faulty node is decommissioned, the replacement node is provisioned, and the active node is reconfigured to form the cluster.

Perform this procedure on the node where EFA is installed.

Navigate to the directory where the EFA file (*.tar.gz) is untarred.
Run the deployment script.
```
device# source deployment.sh
```
The EFA Installer begins in a series of dialogs.
When prompted, select Multi Node Build Upgrade with Node Replacement and OK.

Tip
Use arrow keys to move between options and the space bar to select an option.
When prompted, enter the IP address or host name of the replacement peer node.
Select OK.
The node replacement proceeds. Messages indicate the progress and when the replacement is complete.
Verify the status of EFA after the node replacement.
```
device# efactl status
```