Virtualization Guide
- About This Manual
- I Introduction
- II Managing Virtual Machines with
libvirt - III Hypervisor-Independent Features
- IV Managing Virtual Machines with Xen
- 18 Setting Up a Virtual Machine Host
- 19 Virtual Networking
- 20 Managing a Virtualization Environment
- 21 Block Devices in Xen
- 22 Virtualization: Configuration Options and Settings
- 23 Administrative Tasks
- 24 XenStore: Configuration Database Shared between Domains
- 25 Xen as a High-Availability Virtualization Host
- V Managing Virtual Machines with QEMU
- VI Managing Virtual Machines with LXC
- Glossary
- A Virtual Machine Drivers
- B Appendix
- C XM, XL Toolstacks and Libvirt framework
- D GNU Licenses
Part II Managing Virtual Machines with libvirt
- 8 Starting and Stopping
libvirtd The communication between the virtualization solutions (KVM, Xen, LXC) and the libvirt API is managed by the daemon libvirtd, which needs to run on the VM Host Server. libvirt client applications such as virt-manager, possibly running on a remote machine, communicate with libvirtd running on the VM …
- 9 Guest Installation
A VM Guest is comprised of an image containing an operating system and data files and a configuration file describing the VM Guest's virtual hardware resources. VM Guests are hosted on and controlled by the VM Host Server. This section provides generalized instructions for installing a VM Guest.
- 10 Basic VM Guest Management
Most management tasks, such as starting or stopping a VM Guest, can either be done using the graphical application Virtual Machine Manager or on the command line using
virsh. Connecting to the graphical console via VNC is only possible from a graphical user interface.- 11 Connecting and Authorizing
Managing several VM Host Servers, each hosting multiple VM Guests, quickly becomes difficult. One benefit of
libvirtis the ability to connect to several VM Host Servers at once, providing a single interface to manage all VM Guests and to connect to their graphical console.- 12 Managing Storage
When managing a VM Guest on the VM Host Server itself, it is possible to access the complete file system of the VM Host Server to attach or create virtual hard disks or to attach existing images to the VM Guest. However, this is not possible when managing VM Guests from a remote host. For this reaso…
- 13 Managing Networks
This chapter introduces common networking configurations supported by
libvirt. It does not depend on the hypervisor used, which means that it is valid for all hypervisors supported bylibvirt, such as KVM or Xen. These setups can be achieved using both the graphical interface of Virtual Machine Manager and the command line toolvirsh.- 14 Configuring Virtual Machines
Virtual Machine Manager's view offers in-depth information about the VM Guest's complete configuration and hardware equipment. Using this view, you can also change the guest configuration or add and modify virtual hardware. To access this view, open the guest's console in Virtual Machine Manager and either choose › from the menu, or click the bulb icon in the toolbar.