Compaq Parallel Database Cluster Model PDC/O2000 for Oracle8i and Windows 2000 Administrator Guide

2-70 Compaq Parallel Database Cluster Model PDC/O2000 for Oracle8i and Windows 2000 Administrator Guide

Compaq Confidential – Need to Know Required

Writer: John Blackburn Project: Compaq Parallel Database Cluster Model PDC/O2000 for Oracle8i and Windows 2000 Administrator Guide Comments:

Part Number: 225082-002 File Name: c-ch2 Cluster Architecture.doc Last Saved On: 6/13/01 10:21 AM

Cluster Interconnect Options

The cluster interconnect is the data path over which all of the nodes in a

cluster communicate. The nodes use the cluster interconnect data path to:

■ Communicate individual resource and overall cluster status.

■ Send and receive heartbeat signals.

■ Coordinate database locks through the Oracle Integrated Distributed

Lock Manager.

NOTE: Several terms for cluster interconnect are used throughout the industry. Others

are: private LAN, private interconnect, system area network (SAN), and private network.

Throughout this guide, the term cluster interconnect is used.

A PDC/O2000 cluster running Oracle8i Parallel Server uses an Ethernet

cluster interconnect. An Ethernet cluster interconnects can be redundant or

non-redundant. A redundant cluster interconnect is recommended because it

uses redundant hardware to provide fault tolerance along the entire cluster

interconnect path.

Ethernet Cluster Interconnect

IMPORTANT: The cluster management software for the Ethernet cluster interconnect

requires the use of TCP/IP. When configuring the Ethernet cluster interconnect, be sure to

enable TCP/IP.

NOTE: Refer to the technical white paper Supported Ethernet Interconnects for Compaq

Parallel Database Clusters Using Oracle Parallel Server (ECG062/0299) for detailed

information about configuring redundant and non-redundant Ethernet cluster

interconnects. This document is available at