Tru64 UNIX Troubleshooting (eBook)

Diagnosing and Correcting System Problems

Steven Hancock, Martin Moore (Autoren)

eBook Download: PDF

2002 | 1. Auflage
336 Seiten
Elsevier Science (Verlag)
978-0-08-051974-6 (ISBN)

Infos

"Dealing with system problems-from user login failures to server crashes--is a critical part of a system administrator's job. A down system can cost a business thousands of dollars per minute. But there is little or no information available on how to troubleshoot and correct system problems, in most cases, these skills are learned in an ad-hoc manner, usually in the pressure-cooker environment of a crisis. This is the first book to address this lack of information.

The authors (both experienced Tru64 UNIX support engineer for Compaq) systematically present the techniques and tools needed to find and fix system problems. The first part of the book presents the general principles and techniques needed in system troubleshooting. These principles and techniques are useful not only for UNIX system administrators, but for anyone who needs to find and fix system problems. After this foundation, the authors describe troubleshooting tools used in the UNIX environment. The remainder of the book covers specific areas of the Tru64 UNIX operating system in detail: listing common problems, their causes, how to detect them, and how to correct them. Each chapter includes a Before You Call Support section that details the most important things to check and correct before it's necessary to call Compaq technical support. The authors also include decision trees to help the reader systematically isolate particular problem types.

? Before You Call Tech Support sections
?Tables and diagrams for quick access to precise data
?Decision trees to help choose the best way to troubleshoot a particular problem"

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Dealing with system problems-from user login failures to server crashes--is a critical part of a system administrator's job. A down system can cost a business thousands of dollars per minute. But there is little or no information available on how to troubleshoot and correct system problems; in most cases, these skills are learned in an ad-hoc manner, usually in the pressure-cooker environment of a crisis. This is the first book to address this lack of information.The authors (both experienced Tru64 UNIX support engineer for Compaq) systematically present the techniques and tools needed to find and fix system problems. The first part of the book presents the general principles and techniques needed in system troubleshooting. These principles and techniques are useful not only for UNIX system administrators, but for anyone who needs to find and fix system problems. After this foundation, the authors describe troubleshooting tools used in the UNIX environment. The remainder of the book covers specific areas of the Tru64 UNIX operating system in detail: listing common problems, their causes, how to detect them, and how to correct them. Each chapter includes a "e;Before You Call Support"e; section that details the most important things to check and correct before it's necessary to call Compaq technical support. The authors also include decision trees to help the reader systematically isolate particular problem types.* "e;Before You Call Tech Support"e; sections*Tables and diagrams for quick access to precise data*Decision trees to help choose the best way to troubleshoot a particular problem

Inhalt

Front Cover 1
Tru64 TM UNIX Troubleshooting: Diagnosing and Correcting System Problems 4
Copyright Page 5
Contents 8
Preface 12
Acknowledgments 14
Chapter 1. Introduction 16
1.1 Tru64 UNIX History 16
1.2 Scope 17
1.3 Organization 18
Chapter 2. Principles and Techniques 20
2.1 The Troubleshooting Process 20
2.2 Troubleshooting Techniques 30
2.3 Troubleshooting Principles 37
2.4 Summary 41
Chapter 3. Tools and Resources 42
3.1 System-Level Error-Reporting Facilities 43
3.2 Process-Level Reporting Facilities 64
3.3 System Troubleshooting Tools 68
3.4 Kernel Debugging Tools 77
3.5 Summary 81
Chapter 4. User Accounts and Security 82
4.1 User Account Problems 82
4.2 Security Problems 105
Chapter 5. System Failures 116
5.1 Boot Failures 116
5.2 System Crashes 134
5.3 System Hangs 151
Chapter 6. System Performance 160
6.1 General Principles 161
6.2 Memory Resources and Performance 166
6.3 CPU Resources and Performance 175
6.4 I/O Resources and Performance 178
6.5 Checking System Performance 182
Chapter 7. Networking 188
7.1 Networking Hardware Problems 189
7.2 Networking Software Issues 198
7.3 Summary 215
Chapter 8. Storage 218
8.1 Disks 219
8.2 Tapes 226
8.3 Logical Storage Manager 231
8.4 LSM Performance 240
8.5 Summary 241
Chapter 9. File Systems 242
9.1 Generic File Systems Issues 242
9.2 AdvFS 251
9.3 UFS 261
9.4 Summary 264
Chapter 10. System Configuration 266
10.1 Installation Problems 267
10.2 Installing Patches 275
10.3 Kernel Configuration 275
10.4 Timezone Issues 285
10.5 Summary 289
Chapter 11. System Administration 292
11.1 Software Licenses 292
11.2 Printing 299
11.3 The cron Facility 309
Chapter 12. Display Problems 314
12.1 GeneraI Troubleshooting Techniques 314
12.2 No Display 316
12.3 Incorrect Display Appearance 320
12.4 CDE Problems 322
A Electronic Resources 326
A.1 Mailing Lists 326
A.2 USENET Newsgroups 328
A.3 Web Resources 328
B Recommended Reading 334
B.1 UNIX System Administration 334
B.2 File Systems and Storage 334
B.3 Backup and Recovery 334
B.4 TruCluster 335
B.5 Networking 335
B.6 Sendmail 335
B.7 UNIX Internals 335
B.8 Security 336
B.9 XWindows 336
Index 338

Produkt-Details

• Erscheint lt. Verlag: 10.12.2002
• Sprache: englisch
• Themenwelt: Sachbuch/Ratgeber
• Themenwelt: Informatik ► Betriebssysteme / Server ► Unix / Linux
• Themenwelt: Mathematik / Informatik ► Informatik ► Theorie / Studium
• Themenwelt: Informatik ► Weitere Themen ► Hardware
• ISBN-10: 0-08-051974-1 / 0080519741
• ISBN-13: 978-0-08-051974-6 / 9780080519746