Tru64 UNIX Troubleshooting

by Moore; Hancock

• ISBN13: 9781555582746
• ISBN10: 1555582745
• Format: Paperback
• Copyright: 2002-11-22
• Publisher: Elsevier Science

Summary

Dealing with system problemsfrom 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.

Table of Contents

Contents	vii
Preface	xi
Acknowledgments	xiii
Introduction	1	(4)
Tru64 UNIX History	1	(1)
Scope	2	(1)
Organization	3	(2)
Principles and Techniques	5	(22)
The Troubleshooting Process	5	(10)
Troubleshooting Techniques	15	(7)
Troubleshooting Principles	22	(4)
Summary	26	(1)
Tools and Resources	27	(40)
System-Level Error-Reporting Facilities	28	(21)
Process-Level Reporting Facilities	49	(4)
System Troubleshooting Tools	53	(9)
Kernel Debugging Tools	62	(4)
Summary	66	(1)
User Accounts and Security	67	(34)
User Account Problems	67	(23)
Security Problems	90	(11)
System Failures	101	(44)
Boot Failures	101	(18)
System Crashes	119	(17)
System Hangs	136	(9)
System Performance	145	(28)
General Principles	146	(5)
Memory Resources and Performance	151	(9)
CPU Resources and Performance	160	(3)
I/O Resources and Performance	163	(4)
Checking System Performance	167	(6)
Networking	173	(30)
Networking Hardware Problems	174	(9)
Networking Software Issues	183	(17)
Summary	200	(3)
Storage	203	(24)
Disks	204	(7)
Tapes	211	(5)
Logical Storage Manager	216	(9)
LSM Performance	225	(1)
Summary	226	(1)
File Systems	227	(24)
Generic File Systems Issues	227	(9)
AdvFS	236	(10)
UFS	246	(3)
Summary	249	(2)
System Configuration	251	(26)
Installation Problems	252	(8)
Installing Patches	260	(1)
Kernel Configuration	260	(10)
Timezone Issues	270	(4)
Summary	274	(3)
System Administration	277	(22)
Software Licenses	277	(7)
Printing	284	(10)
The cron Facility	294	(5)
Display Problems	299	(12)
General Troubleshooting Techniques	299	(2)
No Display	301	(4)
Incorrect Display Appearance	305	(2)
CDE Problems	307	(4)
A Electronic Resources	311	(8)
Mailing Lists	311	(2)
USENET Newsgroups	313	(1)
Web Resources	313	(6)
B Recommended Reading	319	(4)
UNIX System Administration	319	(1)
File Systems and Storage	319	(1)
Backup and Recovery	319	(1)
TruCluster	320	(1)
Networking	320	(1)
Sendmail	320	(1)
UNIX Internals	320	(1)
Security	321	(1)
X Windows	321	(2)
Index	323