Red Hat Enterprise Linux Systems Administration
(System Monitoring and Performance Management)


Linux Training Overview

The Red Hat Enterprise Linux Systems Administration: System Monitoring and Performance Management course introduces participants to performance management principles, monitoring utilities / tools, and analysis for the RHEL 7 Operating Environment. The course includes a review of RHEL 7 subsystems, along with the utilities provided to monitor system efficiency including sar and the *stat family of tools. In each area of discussion, emphasis will be placed on writing tools for monitoring and analysis. These tools will include Korn shell scripts, Perl procedures, and C language programs.

Systems: Red Hat Enterprise Linux Version 7 (all update levels)

Linux Training Prerequisites

It is assumed that the participant has successfully completed the Red Hat System Administration I and Red Hat System Administration II courses, or has equivalent system time as a user and a working systems administrator.

Linux Training Course duration

This course normally requires three (3) days, approximately 60% lecture, and 40% lab time.

Linux Training Course Objectives

On completion of this course, a systems administrator should be able to:

  • Describe performance management fundamentals
  • Use the RHEL 7 and third-party tools to analyze performance
  • Write tools in various languages
  • Use RHEL 7 performance data extensions
  • View and set kernel-based tuning parameters
  • Monitor and report on process and thread activity
  • Modify CPU scheduling and virtual memory operations
  • Enable dynamic monitoring via SystemTap in all major areas
Linux Training Course outline

Performance Basics
  • Describe the principles of performance analysis
  • Describe the performance management process
  • Terms used to describe performance aspects
  • Factors affecting system performance
  • Performance metrics
  • Virtual system caching
    • Effects of computer architecture
RHEL 7 Monitoring Capabilities
  • Monitoring tools provided with RHEL 7
    • *stat family of programs
    • sar / sadc
    • Third party / freely available tools
      • uptime
      • ManageEngine
    • tools from Red Hat
  • Introduction to SystemTap
  • Kernel tunables (viewing, changing via sysctl)
Memory Management
  • Memory layout and distribution
  • Memory usage by the kernel
  • Process creation
  • Process virtual address space
  • Buffer Cache (and allocation control)
  • Shared Memory / Page Caching
  • Paging and Swapping
  • Monitoring Tools
CPU Management
  • Software priorities concepts
  • Impact of the nice parameter
  • Priority boosting
  • Adjusting CPU scheduling mechanisms
  • Tuning (Java) threaded applications
  • Process states
  • Monitoring tools
I/O Management
  • Breakdown of disk I/O
  • Measuring Disk and I/O
  • ext3/ext4/xfs performance
    • File system structure concepts
    • File system caching
    • Name Lookup (meta-data) caching
    • Tuning the cache sizes and algorithms
    • (Re-)Defining the I/O scheduler
    • File system performance statistics
    • ext3 parameters to improve efficiency
    • write strategies to ext3/ext4/xfs buffering
  • Monitoring Tools
Network Management
  • TCP/IP Layers
  • Socket controls
  • Controlling network services
  • Setting network buffer values
  • Monitoring tools
Summaries
  • Memory management
  • CPU management
  • I/O management
  • Network management
  • User program management



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