Compaq ProLiant 1850R Supported Ethernet Interconnects for Compaq Parallel Dat - Page 5

Supported Ethernet Interconnects for Compaq Parallel Database Clusters using Oracle Parallel Server 5 Supported Non-Fault Tolerant Architectures A non-fault tolerant architecture means that your cluster will have at least one point of failure in the communications network. Certain non-fault tolerant Ethernet architectures are supported. For two node configurations, the use of a simple crossover cable is one of the supported options. See Figure 1 for an illustration of this option. NOTE: Redundant crossover cables are NOT supported. A single path connection through a hub or switch is also a supported two node non-fault tolerant configuration. For more than two node configurations, a switch is required. (It doesn't necessarily need to be fully redundant to be supported.) SERVER-1 N Port-2 Port-1 NIC SAN CROSS-OVER CABLE LAN ENET SWITCH/HUB SERVER-2 Port-2 Port-1 NIC To public LAN (Clients) Figure 1. Example of a non-fault tolerant, 2-node configuration using a cross-over cable ECG062/0299