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HP-UX Troubleshooting

Course Code: H4264S
Length: 5 days

Schedule and Registration

This course is not currently scheduled.

Course Overview

This course provides troubleshooting tools and procedures to find and fix HP-UX system problems. Concepts are refreshed before tools and techniques are examined. Critical thinking labs are provided using case studies, demonstrations, and hands-on break/fix labs. The course is 55 percent lecture and 45 percent hands-on labs using HP Integrity servers.


  • HP-UX system and network administration I (H3064S) and HP-UX system and network administration II (H3065S) or
  • HP-UX for experienced UNIX system administrators (H5875S) or
  • Equivalent experience


  • Experienced HP-UX system administrators

Course objectives

At the conclusion of this course you will be able to:

  • Use the Management Processor for troubleshooting
  • Troubleshoot EFI problems
  • Recover a non-bootable HP Integrity system or partition
  • Troubleshoot an 11i v3 kernel, system startup, and kernel crash dump
  • Troubleshoot process, login, patch, and storage problems
  • Troubleshoot LVM, VxVM, and VxFS problems
  • Troubleshoot network problems

Benefits to you

  • Learn the techniques needed to troubleshoot and recover your system components
  • Understand fsck and the recovery options to restore lost data
  • Anticipate problems and minimize network downtime by using basic diagnostics tools
  • Ensure your network is operating properly by checking NFS and DNS functionality
  • Keep your system current by managing software patches

Course Contents

Troubleshooting Methodology and Resources
  • Troubleshooting methodology and techniques
  • Troubleshooting resources
  • Common troubleshooting and monitoring tools
HP-UX Concepts Review
  • HP-UX structural overview
  • System calls and processes
Troubleshooting HP-UX Startup Files
  • Concepts review: system startup
  • System configuration files
  • Interrupting the rc start scripts
  • System startup links and sequence
  • Booting to single-user mode
Troubleshooting Process Problems
  • Concept review: What is a process?
  • Troubleshooting processes and memory problems
  • Zombie processes
  • Identifying CPU-intensive processes
  • Advanced system features, hyper-threading, NUMA, and LORA
  • Managing workloads and enhanced user core naming
Troubleshooting Storage
  • Concepts review: how I/O requests are processed
  • HP-UX hardware addressing
  • Storage device special files and slot addresses
  • Storage-related commands
Troubleshooting Logical Volumes
  • Concepts review: LVMs
  • Recovering lost or damaged structures
  • Missing device files and failed disks
  • VxVM structures
  • Restoring group configuration and recovering volumes
Troubleshooting File Systems
  • Concepts review: file system overview
  • File system corruption examples
  • Troubleshooting techniques
  • fsck, fsadm, and fsdb
Troubleshooting Login Problems
  • Concept review: login methods
  • Troubleshooting GUI login
  • Protecting the system with /etc/shadow
  • Pluggable authentication modules
Troubleshooting Software and Patch Installation
  • Concept review: installing software
  • Patch management process and HP-UX patch management
  • Using DRD to install software and patches
  • Troubleshooting patches
  • Working with SD-UX logfiles and common SD-UX problems
Troubleshooting Network Problems
  • Networking subsystem layers
  • Troubleshooting configuration problems and the nwmgr command
  • Subnetting, routing, and DNS concepts and troubleshooting
  • Network tracing and performance
  • NFS review and common problems
Troubleshooting the Kernel
  • Concepts review: kernel configuration
  • Kernel troubleshooting and recovery options
  • Booting from an alternate kernel
  • Kernel crashes and analysis
  • Dump units and post-reboot configuration
Troubleshooting Hardware and Firmware
  • Concepts review: kernel provides hardware services to applications
  • Troubleshooting hardware and firmware
  • Management Processor overview and commands
Troubleshooting HP Integrity System Boot
  • Concepts review: HP Integrity boot disk structure
  • Booting from an alternate disk from EFI
  • Booting a DRD clone and booting alternatives
  • Recovery shell, system startup, and EFI recovery options
  • Partitions and booting: HP Integrity nPar and vPar boot sequence