Sign In Start Free Trial
Account

Add to playlist

Create a Playlist

Modal Close icon
You need to login to use this feature.
  • Mastering KVM Virtualization
  • Toc
  • feedback
Mastering KVM Virtualization

Mastering KVM Virtualization

4.2 (16)
close
Mastering KVM Virtualization

Mastering KVM Virtualization

4.2 (16)

Overview of this book

A robust datacenter is essential for any organization – but you don’t want to waste resources. With KVM you can virtualize your datacenter, transforming a Linux operating system into a powerful hypervisor that allows you to manage multiple OS with minimal fuss. This book doesn’t just show you how to virtualize with KVM – it shows you how to do it well. Written to make you an expert on KVM, you’ll learn to manage the three essential pillars of scalability, performance and security – as well as some useful integrations with cloud services such as OpenStack. From the fundamentals of setting up a standalone KVM virtualization platform, and the best tools to harness it effectively, including virt-manager, and kimchi-project, everything you do is built around making KVM work for you in the real-world, helping you to interact and customize it as you need it. With further guidance on performance optimization for Microsoft Windows and RHEL virtual machines, as well as proven strategies for backup and disaster recovery, you’ll can be confident that your virtualized data center is working for your organization – not hampering it. Finally, the book will empower you to unlock the full potential of cloud through KVM. Migrating your physical machines to the cloud can be challenging, but once you’ve mastered KVM, it’s a little easie.
Table of Contents (17 chapters)
close
16
Index

Accessing the instance configuration database


All the instance configurations are stored in the nova database. Sometimes accessing the database gives good information for troubleshooting purposes. For example, Instance creation fails with an error. Identifying on which compute-node the particular instance was scheduled to run will give us a starting point for troubleshooting. The instance table in the nova database holds all the information, including the host details. To access the nova database, follow the following steps:

  1. SSH into the your OpenStack AIO system and run the mysql command to get into the database:

    # mysql
    Welcome to the MariaDB monitor.  Commands end with ; or \g.
    Your MariaDB connection id is 559251
    Server version: 5.5.42-MariaDB-wsrep MariaDB Server, wsrep_25.11.r4026
          Copyright (c) 2000, 2015, Oracle, MariaDB Corporation Ab and others. 
           Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
           MariaDB [(none)]> 
    
  2. At the MariaDB...

Unlock full access

Continue reading for free

A Packt free trial gives you instant online access to our library of over 7000 practical eBooks and videos, constantly updated with the latest in tech
bookmark search playlist font-size

Change the font size

margin-width

Change margin width

day-mode

Change background colour

Close icon Search
Country selected

Close icon Your notes and bookmarks

Delete Bookmark

Modal Close icon
Are you sure you want to delete it?
Cancel
Yes, Delete