Install EFA in a Multi-Node Deployment

You can install EFA in a multi-node cluster for high availability.

Before you begin

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

About this task

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

By default, EFA is installed in secure mode. For more information about the modes, see EFA Installation Modes.

Important

Do not use the following IP addresses, which are used by the K3s service:

10.42.0.0/16 subnet
10.43.0.0/16 subnet
169.254.0.0/16 subnet

Procedure

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, enter the peer IP address or FQDN of the other node in the cluster.
When prompted, enter the virtual IP address for the cluster.
When prompted, enter the virtual IPv6 address for the cluster.
- Select Yes and then provide the virtual IPv6 addresses.
- Select No to ignore this optional step.
When prompted to configure additional IP addresses for a health check, take one of the following steps.
- Select Yes and then provide the IP addresses.
- Select No to ignore this optional step.
When prompted to configure additional management IP networks, take one of the following steps.
- Select Yes and then provide the following information when prompted. Repeat as often as necessary.
  - Sub-interface name, which is a unique name that contains no more than 11 characters, no white space, and no % or / characters.
  - ID of the VLAN that the management network uses to tag traffic. Valid values range from 2 through 4093.
  - IP subnet address in CIDR format. The subnet must not overlap with any IP subnet that you have already provided.
- Select No to ignore this optional step or when you have finished entering network information.
When prompted to configure additional management IP network routes, take one of the following steps.
- Select Yes and then provide the following information when prompted. Repeat as often as necessary.
  - Target network IP address in CIDR format
  - Source IP address for outbound traffic
  - Next-hop or gateway IP address through which access to the destination network is provided
- Select No to ignore this optional step or when you have finished entering route information.
The installation proceeds. Messages summarize your selections, 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.
3. From the EFA command line, run the efa status command for concise status information.