Xen Configuration Files

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/etc/xen directory

Place for configuration files to use as a template. The settings user may change include:

  • root: The root device for the domain or the partition where the boot image is stored and can be logical volumes or disk image files.
    disk = [ ‘phy : /home/ananova/hostlvm, analvm,w' ] analvm would appear as virtual machine having image hostlvm and with read/write access.
  • kernel: The Kernel image path used by the virtual machine
    kernel = “/boot/vmlinuz-2.6.21.1”
  • memory: Allowable memory for the domain to use
  • disk: The block partitions domain can use
  • dhcp: Enables domain to use DHCP to set networking
  • hostname: The hostname of the virtual machine
  • vif: The MAC address to use
  • extra: Additional boot parameters
  • restart: Automatic restart options: always, never, onreboot
xm create anavm

xm console anavm


OR

xm create -c anavm
  • xm list: Lists domains with detailed information such as domain ID, CPU time used, memory used and the domain state
  • xm save
  • xm restore
  • xendomains: To restart and stop domains

Virtualization Benefits

  • Run the different operating systems on a Linux system, as well as virtual versions of the kernel to test new applications.

More About Linux Virtualization

  • gnome-applet-vm: GNOME VM applet to monitor virtual machines
  • vibvirt tool kit for accessing Linux virtualization capabilities
  • HVM System: It can provide full virtualization without specially modified versions of an OS Kernel. It allows users to run Windows XP directly from Linux.
  • VMWare: It provides a free version & commercial virtualization server and virtualization desktop to install other OS and ESX virtualization server that is stable and efficient.
  • Image: It is a pre-defined virtual machine from which numerous other virtual machines (Fedora, Ubuntu) could be generated.
  • Software Emulator QEMU: It is used for processors without hardware virtualization support and runs guest OS by creating an image file qemu-img.

>> Next Page: More About Virtualization

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  • The goal is to deliver the most accurate information possible based on the needs of the majority of website owners and developers, and Ananova reports deliver the most reliable indicators of web host performance.
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