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Red Hat Enterprise Linux Server Cookbook

You're reading from   Red Hat Enterprise Linux Server Cookbook Over 60 recipes to help you build, configure, and orchestrate RHEL 7 Server to make your everyday administration experience seamless

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Product type Paperback
Published in Dec 2015
Publisher
ISBN-13 9781784392017
Length 250 pages
Edition 1st Edition
Tools
Concepts
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Authors (2):
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Jakub Gaj Jakub Gaj
Author Profile Icon Jakub Gaj
Jakub Gaj
William Leemans William Leemans
Author Profile Icon William Leemans
William Leemans
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Toc

Table of Contents (12) Chapters Close

Preface 1. Working with KVM Guests FREE CHAPTER 2. Deploying RHEL "En Masse" 3. Configuring Your Network 4. Configuring Your New System 5. Using SELinux 6. Orchestrating with Ansible 7. Puppet Configuration Management 8. Yum and Repositories 9. Securing RHEL 7 10. Monitoring and Performance Tuning Index

Monitoring storage performance

In this recipe, we'll look at the following metrics:

  • disk.all.read
  • disk.all.write
  • disk.all.read_bytes
  • disk.all.write_bytes

How to do it…

Let's create a text and graphical representation of the performance data through the following steps:

  1. Display live data for the preceding metrics; you can use the following command for this:
    ~]# pmdumptext -H -t 1 -i -l disk.all.read disk.all.write disk.all.read_bytes disk.all.write_bytes -h guest.example.com
    
    How to do it…
  2. Next, create a configuration file for pmchart to display live data called disk.conf with the following contents:
    #kmchart
    version 1
    
    chart style stacking
            plot color #ffff00 metric mem.util.used
            plot color #ee82ee metric mem.util.free
    chart style stacking
            
    plot color #ffff00 metric swap.used
            plot color #0000ff metric swap.free
    chart style plot antialiasing off
            plot color #19ff00 metric swap.pagesin
            plot color #ff0004 metric swap.pagesout
    
  3. Now, use pmchart to plot...
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