HP B2600 Manuale di servizio

System Conﬁguration Repository

User’s Reference

HP-UX/HP 9000 Computers

Edition 1.2

April 2001

Printed in: USA

Legal Notices

The information contained in this document is subject to change without

notice.

Hewlett-Packard makes no warranty of any kind with regard to this manual,

including, but not limited to, the implied warranties of merchantability and

ﬁtness for a particular purpose. Hewlett-Packard shall not be liable for errors

contained herein or direct, indirect, special, incidental or consequential

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product and replacement parts can be obtained from your local Sales and

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Contents

1. Introduction

2. SCR Overview

Installing SCR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Using SCR. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Conﬁguring SCR. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Registering Managed Nodes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Setting the Data Collection Schedule . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Collecting Conﬁguration Data On Demand . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Checking Data Collection Status. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Viewing Conﬁguration Information on a Node. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Tracking Conﬁguration Changes with SCR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Checking Node Differences . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21

Using Tags to Simplify Node Management. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Using Filters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Simple Filter Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26

Standard Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Using the Probe Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Additional Uses of SCR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Inventory Tracking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Change Management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Disaster Recovery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

SCR Reference (man Pages) 33

scr (5) 34

scrconfig (1M) 43

scrdelete (1M) 48

scrdiff (1M) 50

scrfilter (1M) 53

scrhist (1M) 64

scrstatus (1M) 66

scrtag (1M) 69

scrupdate (1M) 72

scrviewer (1M) 74

scrlog_viewer (1M) 77

A. SCR File Set

Contents

About this Manual

Printing History

The printing date will change when a new edition is printed. Minor changes

may be made at reprint without changing the printing date. The manual part

number will change when extensive changes are made.

Manual updates may be issued between editions to correct errors or document

product changes. To ensure that you receive these updates or new editions, see

your HP sales representative for details.

April 2001…Edition 1.2.

April 2000…Edition 1.1.

How to Use this Guide

This is a technical reference for the ServiceControl Manager. It deals with the

concepts and technical details necessary to create a managed cluster using

ServiceControl Manager and to efﬁciently manage the systems using the

ServiceControl tools.

This guide contains the following information:

•Chapter 1 , “Introduction,” provides an introduction to this manual.

• Chapter 2 , “SCR Overview,” provides an overview of the System

Conﬁguration Repository.

• Chapter , “SCR Reference (man Pages),” includes the man pages for the

System Conﬁguration Repository.

Appendix A , “SCR File Set,” describes the ﬁle set for the System

Conﬁguration Repository.

Comments about this manual (no technical questions, please) can be directed

to: [email protected].com. Please consult your HP service and support

representative for technical support questions. Thanks.

Typographic Conventions

This guide uses the following typographic conventions:

Boldface Words deﬁned for the ﬁrst time appear in boldface. For

example, an argument is the part of a command line that

indicates what ﬁle or directory the command is to act on.

Computer Computer font indicates literal items displayed by the

computer. For example: file not found

User input Bold, computer text indicates literal items that you type. For

example: cd

Italics Manual titles and emphasized words appear in italics, as do

values that you supply.

For example, in the command below you would substitute an

actual directory name (such as mydir) for directory_name.

cd directory_name

Enter Text in a bold, sans serif font denotes a keyboard key. A

notation like CTRL+Qindicates that you should hold the

control key down, then press Q.

Softkey Select an on-screen item or a corresponding softkey. For

example,

Help

shown at the bottom left side of the screen means that

pressing the softkey corresponding to that position on the

screen (f1) will cause a help screen to be displayed.

1Introduction

This manual describes the features of Hewlett Packard’s System

Conﬁguration Repository (SCR) for HP-UX and how to use them.

Although powerful, SCR is simple to use, if you have a basic

understanding of the HP-UX command syntax.

• Chapter 2 describes how to use SCR commands to conﬁgure the

program for operation. This is all you need to do to begin tracking

changes in your system quickly and easily.

• Chapter 3 describes the full capabilities of all 10 SCR commands.

The best way to learn SCR’s capabilities is to experiment with the

commands. SCR does not change any system conﬁgurations. Using a

command incorrectly may give you some error messages or strange

information, but it will not harm your system.

SCR Features SCR provides the following time-saving features:

• SCR can extract a static “snapshot” of a system's conﬁguration by

request or by schedule, and store it in the persistent repository. A

snapshot is a record of a system’s conﬁguration at a speciﬁc time.

• SCR snapshots stored in the repository can be compared with each

other to identify any differences.

• SCR conﬁguration snapshots include all relevant conﬁguration

information included in the Management Information Format (MIF)

for the Desktop Management Interface (DMI). See the DMI User’s

Reference for information about DMI and the MIF.

SCR shows you quickly what is going on in a system. As root user, you

can enter a command to learn the current status of a particular system

or an entire set of systems. With options to that command, you can

learn what changes have taken place recently. If desired, these com-

mands will execute according to a schedule and automatically generate

reports. By monitoring changes in a set of similarly conﬁgured systems,

SCR can give you advance warning of potential problems.

Using SCR, you can retrieve a snapshot and compare it to a previous

snapshot. This may reveal things that are going wrong in a system but

not generating error messages. SCR uses DMI programming routines to

gather information from systems. Be sure DMI is running and

managing each node for which you want a snapshot. See the DMI 2.0

User’s Reference for DMI installation and conﬁguration instructions.

10 Chapter1

Introduction

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