HP b2600 Service manual

System Configuration Repository
User’s Reference
HP-UX/HP 9000 Computers
Edition 1.2
April 2001
Printed in: USA

2
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Contents
3
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

4
Contents

5
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.

6
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.

7
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.

8

9
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