Install EFA for High Availability

Beginning with EFA 2.3.0, you can install EFA in a two-node cluster for high availability.

Before you begin

Ensure passwordless SSH login is enabled between the two servers. For more information, see EFA Requirements.

To install EFA, you must be a root user or have sudoers privileges.

The installation process prompts you to select secure mode or standard mode. For more information about these modes, see EFA Installation Modes.

Untar the tarball on the primary server.
```
device# tar –xzf efa-vX.X.X-X.tar.gz
```
Change to the EFA directory.
```
device# cd efa
```
Run the installation script.
```
device# source deployment.sh
```
The EFA Installer begins in a series of dialogs.
When prompted, select Multi-node deployment and OK.

Tip
Use arrow keys to move between options and the space bar to select an option.
When prompted, select Enable secure mode or Standard mode and OK.
When prompted, enter the peer IP address or FQDN of the other node in the cluster.
When prompted, enter the virtual IP address for the cluster.
The installation proceeds. Messages describe the progress and indicate when EFA is deployed.
Verify the installation.
1. On the SLX device, run the show efa status command to see details of the installation and the state of services.
2. From the EFA command line, run the efactl status command to see the status of nodes, pods, and services.