Configuration node
A configuration node is a single node canister that manages configuration activity of the system.
The configuration node also handles the following functions:
- Accepts user logins to the management GUI and CLI via the IP address that is bound to Ethernet port 1 and optionally to the second management IP address that is bound to Ethernet port 2.
- Sends system configuration changes to the other nodes in the system.
- Sends call home and system notifications on behalf of the system.
If the configuration node fails or is taken offline, the system chooses a new configuration node. This action is called configuration node failover. The new configuration node takes over the management IP addresses. Thus, you can access the system through the same IP addresses although the original configuration node failed. During the failover, there is a short period when you cannot use the command-line tools or management GUI.
For correct failover operation, all nodes of the system must be connected to the same subnet and the management IP configuration must be valid on the subnet.