Unregister a Data Node
If you need to permanently remove a cluster node (for example, if you remove a module on the Firepower 9300, or remove a chassis), then you should unregister it from the management center.
Do not unregister the node if it is still a healthy part of the cluster, or if you only want to disable the node temporarily. To remove it permanently from the cluster in FXOS, see FXOS: Remove a Cluster Node. If you unregister it from the management center, and it is still part of the cluster, it will continue to pass traffic, and could even become the control node—a control node that the management center can no longer manage.
Before you begin
To manually deactivate the node, see Deactivate a Member. Before you unregister a node, the node must be inactive, either manually or because of a health failure.
Procedure
Step 1 | Make sure the node is ready to be unregistered from the management center. On , make sure the node shows (Disabled).
You can also view each node's status on the Cluster
Status dialog box available from More ( |
Step 2 | In the management center for the data node you want to delete, choose >
More ( |
Step 3 | Confirm that you want to unregister the node. The node is removed from the cluster and from the management center devices list. |
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