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virtualization:xen_virtualization [2012/08/02 20:10]
gcooper 		virtualization:xen_virtualization [2017/01/25 11:58]
gcooper
Line 5: Line 5:
 http://www.howtoforge.com/installing-xen-on-centos-5.2-i386 http://www.howtoforge.com/installing-xen-on-centos-5.2-i386
  
-Comparison - http://www.xensource.com/products/+http://www.xen.org/products/cloudxen.html
  
-Support - http://www.xensource.com/support/+===== Xen Overview =====
  
-Getting Started User Guide - http://www.xensource.com/support/3.2/xenserver-userguide.html+http://wiki.xensource.com/xenwiki/XenOverview
  
-Wiki - http://wiki.xensource.com/xenwiki/+Xen can run two types of Virtual Machines:
  
-Mail Lists - http://lists.xensource.com/+  * Paravirtualized 
 +    * No special hardware support required 
 +    * Requires VM be modified 
 +    * Generally only for Linux VMs 
 +    * Offers top performance 
 +  * HVM fully virtualized 
 +    * Requires hardware support by the mainboard, BIOS and CPU 
 +      * http://en.wikipedia.org/wiki/Hardware-assisted_virtualization 
 +    * Provides full virtualization of hardware including the BIOS
  
-[[XenServer]] - http://www.citrix.com/xenserver+===== Generic Xen =====
  
-2 sockets +http://en.wikipedia.org/wiki/Xen
-4GB RAM +
-Manage single server at a time +
-Free+
  
-**CPU Support**+Generic Xen is managed using the "xm" command line interface which is significantly different than the "xe" tools used in XCP or XenServer.
  
 +There are also various other management consoles or tools for managing Xen:
 +
 +http://en.wikipedia.org/wiki/Xen#Xen_Management_Consoles
 +
 +===== Xen Cloud Platform =====
 +
 +http://www.xen.org/products/cloudxen.html
 +
 +XCP is a free open-source bare-metal type 1 hypervisor originally based on XenServer.
 +
 +http://wiki.xen.org/wiki/Command_Line_Interface
 +
 +XCP is managed using "xe" commandline tools.
 +
 +===== XenServer =====
 +
 +http://www.citrix.com/xenserver
 +
 +[[virtualization:xenserver:xenserver|XenServer]] is a bare-metal type 1 hypevisor.  It is free but the license has to be renewed by Citrix and every year.
 +
 +XenServer is managed via a Windows application, XenCenter, or using "xm" commandline tools.
 +
 +===== Required CPU Support =====
 +
 +Xen requires hardware 
 <file> <file>
-echo; echo -n "  Full-Virtualization is "; egrep '^flags.*(vmx|svm)' /proc/cpuinfo || echo -n "not "; echo "suported by your CPU"; echo+egrep '^flags.*(vmx|svm)' /proc/cpuinfo
 </file> </file>
  
virtualization/xen_virtualization.txt · Last modified: 2017/01/25 12:06 by gcooper

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