Document revision date: 15 July 2002

Contents

Preface
Preface	Preface
Chapter 1
1	Introduction to OpenVMS Cluster System Management
1.1	Overview
1.1.1	Uses
1.1.2	Benefits
1.2	Hardware Components
1.2.1	Computers
1.2.2	Physical Interconnects
1.2.3	OpenVMS Galaxy SMCI
1.2.4	Storage Devices
1.3	Software Components
1.3.1	OpenVMS Cluster Software Functions
1.4	Communications
1.4.1	System Communications
1.4.2	Application Communications
1.4.3	Cluster Alias
1.5	System Management
1.5.1	Ease of Management
1.5.2	Tools and Utilities from Compaq
1.5.3	System Management Tools from OpenVMS Partners
1.5.4	Other Configuration Aids
Chapter 2
2	OpenVMS Cluster Concepts
2.1	OpenVMS Cluster System Architecture
2.1.1	Port Layer
2.1.2	SCS Layer
2.1.3	System Applications (SYSAPs) Layer
2.1.4	Other Layered Components
2.2	OpenVMS Cluster Software Functions
2.2.1	Functions
2.3	Ensuring the Integrity of Cluster Membership
2.3.1	Connection Manager
2.3.2	Cluster Partitioning
2.3.3	Quorum Algorithm
2.3.4	System Parameters
2.3.5	Calculating Cluster Votes
2.3.6	Example
2.3.7	Quorum Disk
2.3.8	Quorum Disk Watcher
2.3.9	Rules for Specifying Quorum
2.4	State Transitions
2.4.1	Adding a Member
2.4.2	Losing a Member
2.5	OpenVMS Cluster Membership
2.5.1	Cluster Group Number
2.5.2	Cluster Password
2.5.3	Location
2.5.4	Example
2.6	Synchronizing Cluster Functions by the Distributed Lock Manager
2.6.1	Distributed Lock Manager Functions
2.6.2	System Management of the Lock Manager
2.6.3	Large-Scale Locking Applications
2.7	Resource Sharing
2.7.1	Distributed File System
2.7.2	RMS and Distributed Lock Manager
2.8	Disk Availability
2.8.1	MSCP Server
2.8.2	Device Serving
2.8.3	Enabling the MSCP Server
2.9	Tape Availability
2.9.1	TMSCP Server
2.9.2	Enabling the TMSCP Server
2.10	Queue Availability
2.10.1	Controlling Queues
Chapter 3
3	OpenVMS Cluster Interconnect Configurations
3.1	Overview
3.2	OpenVMS Cluster Systems Interconnected by CI
3.2.1	Design
3.2.2	Example
3.2.3	Star Couplers
3.3	OpenVMS Cluster Systems Interconnected by DSSI
3.3.1	Design
3.3.2	Availability
3.3.3	Guidelines
3.3.4	Example
3.4	OpenVMS Cluster Systems Interconnected by LANs
3.4.1	Design
3.4.2	Cluster Group Numbers and Cluster Passwords
3.4.3	Servers
3.4.4	Satellites
3.4.5	Satellite Booting
3.4.6	Examples
3.4.7	LAN Bridge Failover Process
3.5	OpenVMS Cluster Systems Interconnected by MEMORY CHANNEL
3.5.1	Design
3.5.2	Examples
3.6	Multihost SCSI OpenVMS Cluster Systems
3.6.1	Design
3.6.2	Examples
3.7	Multihost Fibre Channel OpenVMS Cluster Systems
3.7.1	Design
3.7.2	Examples

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