The term 'server clustering' refers to a computing setup where multiple servers are linked to work together as a single system. This configuration enhances performance, reliability, and availability, as workloads can be distributed across the cluster. In the event of a server failure, other servers can take over, ensuring continuity of services. Server clustering is commonly used for load balancing, failover solutions, and high availability, making it essential for businesses that require consistent uptime and efficient resource utilization.