openSUSE Leap Documentation › Virtualization Guide › Hypervisor-Independent Features
ContentsContents
Virtualization Guide
  1. About This Manual
  2. I Introduction
    1. 1 Virtualization Technology
    2. 2 Introduction to Xen Virtualization
    3. 3 Introduction to KVM Virtualization
    4. 4 Introduction to Linux Containers
    5. 5 Virtualization Tools
    6. 6 Installation of Virtualization Components
  3. II Managing Virtual Machines with libvirt
    1. 7 Starting and Stopping libvirtd
    2. 8 Guest Installation
    3. 9 Basic VM Guest Management
    4. 10 Connecting and Authorizing
    5. 11 Managing Storage
    6. 12 Managing Networks
    7. 13 Configuring Virtual Machines
  4. III Hypervisor-Independent Features
    1. 14 Disk Cache Modes
    2. 15 VM Guest Clock Settings
    3. 16 libguestfs
  5. IV Managing Virtual Machines with Xen
    1. 17 Setting Up a Virtual Machine Host
    2. 18 Virtual Networking
    3. 19 Managing a Virtualization Environment
    4. 20 Block Devices in Xen
    5. 21 Virtualization: Configuration Options and Settings
    6. 22 Administrative Tasks
    7. 23 XenStore: Configuration Database Shared between Domains
    8. 24 Xen as a High-Availability Virtualization Host
  6. V Managing Virtual Machines with QEMU
    1. 25 QEMU Overview
    2. 26 Setting Up a KVM VM Host Server
    3. 27 Guest Installation
    4. 28 Running Virtual Machines with qemu-system-ARCH
    5. 29 Virtual Machine Administration Using QEMU Monitor
  7. VI Managing Virtual Machines with LXC
    1. 30 Linux Containers
    2. 31 Migration from LXC to libvirt-lxc
  8. Glossary
  9. A Appendix
  10. B XM, XL Toolstacks and Libvirt framework
  11. C GNU Licenses
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Part III Hypervisor-Independent Features

14 Disk Cache Modes

15 VM Guest Clock Settings

Keeping the correct time in a VM Guest is one of the more difficult aspects of virtualization. Keeping the correct time is especially important for network applications and is also a prerequisite to do a live migration of a VM Guest.

16 libguestfs

Virtual Machines consist of disk images and definition files. Manually accessing and manipulating these guest components (outside of normal hypervisor processes) is possible, but inherently dangerous and risks compromising data integrity. libguestfs is a C library and corresponding set of tools designed for safely accessing and modifying Virtual Machine disk images - outside of normal hypervisor processes, but without the risk normally associated with manual editing.

→Chapter 14 Disk Cache Modes←Chapter 13 Configuring Virtual Machines
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