Updating the configuration node

After all the other nodes are updated on the system, you can update the configuration node.

To update the configuration node, follow these steps:

1. Ensure that all hosts have all paths available to volumes that are mapped to those hosts. If not, wait up to 30 minutes and repeat this check. If some paths are still unavailable, investigate and resolve these connection problems before you continue the system code update.
2. Record the name of the configuration node on the system before you upgrade the configuration node. To view the node name in the management GUI, select Setting > Network > iSCSI.
3. In the management GUI, check that there are no incomplete volume synchronization tasks in progress. Click Running Tasks.
4. Remove the configuration node from the system.
   In the management GUI, select Monitoring > System Details and select the canister to remove. Click Actions > Remove Node.select Monitoring > System. Right-click the canister and select Remove.

   Note: When the configuration node is removed from the system, the SSH connection to the system closes.
5. Open a web browser and type http://service_assistant_ip in the address field. The service assistant IP address is the IP address for the service assistant on the node that was deleted.
6. On the service assistant home page, click Exit service state and press Go.
   Use the management GUI to add the node to the system. The node is then updated before it joins the system and it remains in the adding state for some time.The node is automatically added to the system. Because the process of adding the node automatically updates the code on the node, it takes some time before the node is fully online.

   This action automatically updates the code on this last node, which was the configuration node.

7. After the configuration node is updated and added back to the system, rename the node canister to the name it had before it was removed and updated. In the management GUI, select Settings > Network > iSCSI.