Document revision date: 28 June 1999

## DECdfs for OpenVMS Management Guide

Begin | Index

Contents (summary)
Preface | Preface
Chapter 1 | Introduction to DECdfs
Chapter 2 | Managing a DECdfs Server
Chapter 3 | Managing a DECdfs Client
Chapter 4 | DFS$CONTROL Commands
Appendix A | Status Messages
Appendix B | Troubleshooting the DECdfs Environment
Appendix C | Adjusting DECnet and Client RMS Parameters to Enhance Performance
Appendix D | Obsolete Command Qualifiers and Configuration Logicals
Appendix E | Information for Programmers
Appendix F | Restrictions on Extended File Specifications Support
| Index
| Figures
| Examples
| Tables

## Contents

Preface
Preface | Preface
Chapter 1
1 | Introduction to DECdfs
1.1 | Components of a DECdfs Environment
1.1.1 | Digital Distributed Name Service
1.1.2 | Access Points
1.1.3 | DECdfs Management Components
1.1.3.1 | The Server
1.1.3.2 | The Client
1.1.3.3 | The Communication Entity
1.2 | Client-Server Consistency Issues
1.2.1 | System Times on the Client and Server
1.2.2 | Logical Names on the Client and Server
1.3 | Comparison of Standard OpenVMS File Access and DECdfs File Access
1.4 | The DFS$CONTROL Commands
1.4.1 | Using DFS$CONTROL Commands in DECdfs Command Files
1.4.2 | Using DFS$CONTROL Commands Interactively
1.4.3 | Getting Help with DECdfs
Chapter 2
2 | Managing a DECdfs Server
2.1 | Setting System Parameters
2.1.1 | Limiting the Number of Open Files
2.1.2 | Controlling DECdfs Activity
2.1.3 | Limiting Inactive DECdfs DECnet Links
2.2 | Setting Up Proxy Accounts
2.2.1 | Setting Up Privileges
2.2.2 | Setting Up UICs, ACLs, and User Names
2.2.2.1 | User Identification Codes
2.2.2.2 | Access Control Lists
2.2.2.3 | User Names
2.2.3 | Giving Cluster Clients Access to Server Files
2.2.4 | Allowing Client Users to Print Server Files
2.3 | Creating and Managing Access Points
2.3.1 | Deciding Where to Place Access Points
2.3.2 | Adding Access Points
2.3.2.1 | Systems with DECdns
2.3.2.2 | Systems Without DECdns
2.3.2.3 | Using the /LOCAL Qualifier
2.3.3 | Determining Access Point Information
2.3.4 | Changing Access Points
2.3.5 | Removing Access Points Added with the /CLUSTER_ALIAS Qualifier
2.3.6 | Maintaining Consistency with DECdns
2.4 | Protecting Server Files
2.5 | Protecting Individual Files
2.6 | Managing the Persona Cache
2.6.1 | Specifying the Lifetime of Persona Blocks
2.6.2 | Flushing the Cache
2.6.3 | Displaying Cache Counters
2.7 | Managing the Data Cache
2.7.1 | Specifying the Size of the Cache
2.7.2 | Specifying the Per-File Quota
2.7.3 | Displaying Cache Counters
2.8 | Using a Cluster as a DECdfs Server
2.8.1 | Serving an Access Point from a Cluster Alias
2.8.2 | Serving an Access Point from Individual Cluster Members
2.9 | Stopping and Starting DECdfs on Your System
Chapter 3
3 | Managing a DECdfs Client
3.1 | Setting System Parameters
3.2 | Mounting Access Points
3.2.1 | Assigning Device Unit Numbers
3.2.2 | Assigning Logical Names
3.2.3 | Specifying Volume Names
3.2.4 | Enabling Data Checking
3.2.5 | Mounting Alternative Access Points
3.3 | Displaying Client Device Information
3.4 | Using the Client Device
3.4.1 | Printing Server-Based Files on a Client
3.4.2 | User Identification Codes on Server Files
3.4.3 | Access Control Lists on Server Files
3.4.4 | DECdfs Error Conditions
3.4.5 | DECdfs Mount Verification
3.4.6 | Partially Mounted Devices
3.5 | Performing Checksum Comparisons on DECdfs Connections
3.6 | Printing Files from a Client Device
3.7 | Using the OpenVMS Backup Utility with a Client Device
3.8 | Using a Cluster as a DECdfs Client
3.8.1 | Using Cluster Aliases
3.8.2 | Submitting Print and Batch Jobs
3.9 | Stopping and Starting DECdfs on Your System
Chapter 4
4 | DFS$CONTROL Commands
Command 1 | ADD ACCESS_POINT
Command 2 | DISMOUNT
Command 3 | EXIT
Command 4 | HELP
Command 5 | MOUNT
Command 6 | REMOVE ACCESS_POINT
Command 7 | SET COMMUNICATION
Command 8 | SET SERVER
Command 9 | SHOW ACCESS_POINT
Command 10 | SHOW CLIENT
Command 11 | SHOW COMMUNICATION
Command 12 | SHOW SERVER
Command 13 | SHOW VERSIONS
Command 14 | SHUTDOWN COMMUNICATION
Command 15 | SNAPSHOT CLIENT
Command 16 | SNAPSHOT COMMUNICATION
Command 17 | SNAPSHOT SERVER
Command 18 | START COMMUNICATION
Command 19 | START SERVER
Command 20 | STOP COMMUNICATION
Command 21 | STOP SERVER

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