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6.3. Maintaining Hosts
You can use the Administration Portal to perform host maintenance tasks, for example changing the network configuration details of a host.
Warning
Editing a host may require shutting down and restarting the host. Plan ahead when performing maintenance actions.
6.3.1. Moving Hosts into Maintenance Mode
To perform certain actions, you need to move hosts into maintenance mode.
Important
If you move the Host under Maintenance mode, it will stop all gluster process such as brick, self-heal, and geo-replication. Once the Host is activated, all gluster processes will be restarted automatically.
Procedure 6.9. To Move a Host into Maintenance Mode
- Click the Hosts tab to display a list of hosts.
- Click to place the host into maintenance. Click to confirm the action. The Status field of the host changes to Preparing for Maintenance, followed by Maintenance. The icon changes to indicate that the host is in maintenance mode.
- Perform required tasks. When you are ready to reactivate the host, click .
- After the host reactivates, the Status field of the host changes to Up. If the Red Hat Gluster Storage Console is unable to contact or control the host, the Status field displays Non-responsive.
6.3.2. Editing Host Details
You can edit the details of a host, such as its name, network configuration, and cluster.
Procedure 6.10. To Edit Host Details
- Click the Hosts tab to display a list of hosts.
- If you are moving the host to a different cluster, first place it in maintenance mode by clicking . Click to confirm the action. The Status field of the host changes to Preparing for Maintenance, followed by Maintenance. The icon changes to indicate that the host is in maintenance mode.
- Click to open the Edit Host dialog box.
- To move the host to a different cluster, select the cluster from the Host Cluster drop-down list.
- Make the required edits and click . Activate the host to start using it. See Section 6.2.2, “Activating Hosts”
6.3.3. Customizing Hosts
You can assign tags to help you organize hosts. For example, you can create a group of hosts running in a department or location.
Note
You can assign tags to a host only if a tag is present. You can not assign the root tag to a host. To create a new tag, see Section 2.3, “Tags”.
Procedure 6.11. To Tag a Host
- Click the Hosts tab to display a list of hosts. Select the desired host to display the Details pane.
- Click to open the Assign Tags dialog box.
- Select the required tags and click .
