Managed cluster

Content Gateway scales from a single node to multiple nodes, with a maximum recommended limit of 16. This forms a managed cluster that improves system capacity, performance, and reliability.

• A managed cluster detects the addition and removal of nodes.
• Cluster nodes automatically share configuration information, allowing members of the cluster to all be administered at the same time.

If the virtual IP failover option is enabled, Content Gateway maintains a pool of virtual IP addresses that it assigns to the nodes of the cluster. Content Gateway can detect node failures (such as power supply or CPU failures) and reassign IP addresses of the failed node to the operational nodes. See Virtual IP failover, for details.

If Content Gateway is configured as a transparent proxy with WCCP, failover is handled by WCCP and virtual IP failover should not be used. See WCCP load distribution.

For complete information, see Clusters.