# Adding Monitoring Nodes for Automatic Failover

Monitoring nodes are used to monitor the active CommServe host in real-time, and obtain the information necessary to detect failures, and successfully perform an automatic failover to a standby CommServe host.

Note

When you have multiple networks within your CommCell, pick one (or more) clients / MediaAgents from each network as a monitoring node.

## Before You Begin

Enable Automatic Failover as described in Enabling Automatic Failovers.

## Procedure

1. From the Command Center navigation pane, go to Manage > Settings > Global.

2. Click the CommServe LiveSync tile.

3. On the Advanced options tab, enable the Automatic failover toggle key.

4. In the Monitoring Nodes section, click Add.

5. Select the checkbox associated with clients / MediaAgents that must be used as monitoring nodes.

   Important

   You must select atleast 3 monitoring nodes.

6. Click Save, and then Enable.

## Result

- The High Availability Computing (HAC) package will be automatically installed in the selected clients / MediaAgents.

- The selected clients / MediaAgents will be listed under the Monitoring Nodes section of the CommServe LiveSync page.

Note

To add a Web Server client in the Monitoring nodes list, manually install the HAC package on these clients. (The HAC package will not be automatically installed on these clients when you add these clients.)

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