Replace a Node in a Multi-node Deployment using Interactive Mode

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 2.5.5 or later.
Ensure you have completed the high-availability prerequisites in High-Availability Requirements.
Ensure that XCO is not deployed on the replacement node.
Ensure that the faulty node is shutdown.

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 active node where XCO is installed.

Navigate to the directory where the XCO file (*.tar.gz) is untarred.
Run the deployment script.
```
device# source deployment.sh
```
The XCO 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. Press the space bar to select an option.
When prompted, enter the IP address or host name of the replacement peer node depending on the IP stack selected.
Select OK.
The node replacement proceeds. Messages indicate the progress and when the replacement is complete.
Verify the status of XCO after the node replacement. Ensure that all nodes are up.
```
$ efa status
```
For more information on how to recover SLX configs, refer to the ExtremeCloud Orchestrator CLI Administration Guide, 3.5.0 .