Compaq ProLiant 7000 Supported Ethernet Interconnects for Compaq Parallel Data - Page 6

Supported Ethernet Interconnects for Compaq Parallel Database Clusters using Oracle Parallel Server 6 Supported Fault Tolerant Architecture A fault tolerant architecture consists of combining Microsoft NT and Compaq software with Compaq Fast Ethernet Network Interface Controllers (NICs) in the Compaq NC Series, to create redundancy. With this configuration, two NICs can be configured for a fault tolerant network with a path for primary and a path for secondary or backup communication on separate NICs (either dual or single port), for each node. This path/port teaming feature is enabled with a Compaq utility in the Microsoft Windows NT 4.0 network control panel. Several configurations are supported for the cluster interconnect and the client LAN. In this document, only the most robust configuration that will provide both the highest availability and performance is recommended (See Figure 2). (This document will address redundancy in both the LAN and cluster interconnect. It is not required that both networks be fully redundant to be supported, any combination will work as well.) The following configuration can be achieved using either two dual-port NICs or four single-port NICs or a combination of the two in each server. Two switches for the cluster interconnect and two hubs or switches for the client LAN connections are shown here. This configuration is the recommended architecture for optimal fault. ENET SWITCH-2 TEAM-A N Port-1 Port-2 NIC TEAM-B ENET SWITCH-1 SERVER-1 SAN SERVER-N Port-1 Port-2 NIC NIC LAN TEAM-A NIC TEAM-B ENET SWITCH/HUB-1 ENET SWITCH/HUB-2 To public LAN (Clients) Figure 2. Fault Tolerant Configuration ECG062/0299