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Part V. Tips and Tricks

Tips and Tricks to Enhance Productivity

These chapters contain useful hints and tips to improve virtualization performance, scale and stability.

Table of Contents

17. Tips and tricks
17.1. Automatically starting guests
17.2. Changing between the KVM and Xen hypervisors
17.2.1. Xen to KVM
17.2.2. KVM to Xen
17.3. Using qemu-img
17.4. Overcommitting with KVM
17.5. Modifying /etc/grub.conf
17.6. Verifying virtualization extensions
17.7. Identifying guest type and implementation
17.8. Generating a new unique MAC address
17.9. Very Secure ftpd
17.10. Configuring LUN Persistence
17.11. Disable SMART disk monitoring for guests
17.12. Cloning guest configuration files
17.13. Duplicating an existing guest and its configuration file
18. Creating custom libvirt scripts
18.1. Using XML configuration files with virsh