The 1C:Enterprise Server Cluster is a core component of the platform that ensures interaction between users and the database management system in the client-server mode. A server cluster enables uninterrupted, fault-tolerant, and concurrent operation for a large number of users working with large infobases.
The 1C:Enterprise server cluster is a logical grouping of working servers. These may reside on one or multiple physical machines and together serve the same set of infobases.
Learn more:
1C Server Cluster Architecture
1C Server Cluster. Fault Tolerance and Scalability

