Compaq Parallel Database Cluster Model PDC/O1000 for Oracle8i and Windows 2000 Administrator Guide

Architecture 2-13

Compaq Confidential – Need to Know Required

Writer: John Blackburn Project: Compaq Parallel Database Cluster Model PDC/O1000 for Oracle8i and Windows 2000 Administrator Guide

Comments:

Part Number: 225083-002 File Name: c-ch2 Cluster Architecture.doc Last Saved On: 6/11/01 11:20 AM

Maximum Distances Between Cluster Nodes and

Shared Storage Subsystem Components in a

Non-Redundant Fibre Channel Fabric

By using standard short-wave Fibre Channel cables and GBIC-SW modules,

an RA4000/RA4100 Array can be placed up to 500 meters from the Fibre

Channel SAN Switch, and the Fibre Channel SAN Switch can be placed up to

500 meters from the Fibre Host Adapter in each cluster node. See Figure 2-4.

500 m

Fibre Channel

SAN Switch

RA4000/4100 Array

Node 1Node 3

Node 2 Node 4

Figure 2-4. Maximum distances between cluster nodes and shared

storage components in a non-redundant Fibre Channel Fabric

I/O Data Paths for a Non-Redundant Fibre Channel

Fabric

The shared storage components in a non-redundant Fibre Channel Fabric use

two distinct I/O data paths, separated by the Fibre Channel SAN Switch:

■ One path runs from the Fibre Host Adapter in each node to the Fibre

Channel SAN Switch.

■ Another path runs from the Fibre Channel SAN Switch to the RA4000

Array Controller in each RA4000/RA4100 Array of that Fibre Channel

Fabric.