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 before you upgrade it on the system. To view the node name in the management GUI, select Monitoring > System.
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. On the System -- Overview page, select the directional arrow for the node that you are removing. On the Node Details page, select Node Actions > Remove.

   Note: When the configuration node is removed from the system, any SSH connection to the system closes, and the management GUI is unavailable briefly.
5. Ensure that the upgrade status indicates Success in the management GUI before you proceed to the next step. You can also use the lsupdate command to verify that the upgrade status indicates success.
6. Use the management GUI to add the configuration node that you removed previously back to the system. The node is then updated before it joins the system and it remains in the adding state for some time.
7. After the configuration node is updated and added back to the system, rename all nodes, including the configuration node, to the names that they had before they were removed and updated. In the management GUI, select Monitoring > System. Select each node that was added and select Rename. Enter the old name and click Rename.