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Network Load Balancing and Server Clustering

Tridion Sites supports two different clustering methods: Network Load Balancing and Server Clustering.

Network Load Balancing
This clustering method only clusters the network layer. Either Windows or a hardware load balancer can be in charge of balancing the network requests between the clustered servers. Load balancing is useful when performance and scalability is needed in IIS.
To handle the load of multiple clients connecting to the Content Manager, do the following:
  1. Create an NLB Cluster of servers exposed through a single IP address or host name
  2. Install Content Manager and the server side of a client on each server.
  3. For the Classic user interface and Experience Space, set up sticky sessions so that consecutive requests are sent to the same server.
Server Clustering
This clustering method makes multiple machines act as a single machine, sharing disk space and providing fail-over support, to create a fault-tolerant system.

Refer to the following online documentation resource from Microsoft, which explains how to set up these clusters: https://docs.microsoft.com/en-us/windows-server/failover-clustering/failover-clustering-overview.