Final answer:
To add a Search Head to an additional cluster in Splunk, the 'splunk edit cluster-config' command is used. The administrator must specify the cluster and the role of the new member accurately to integrate the Search Head into the cluster.
Step-by-step explanation:
To add a Search Head to an additional cluster, the Splunk command splunk edit cluster-config is used with the appropriate parameters to specify the cluster to join and the role of the new member as a search head.
This operation is typically performed by a cluster administrator or someone with equivalent permissions on the Splunk platform.
It is crucial to ensure that the configurations are correctly implemented to prevent issues within the cluster environment.