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--- virtualization:xen_virtualization [2012/08/02 20:16]
gcooper
+++ virtualization:xen_virtualization [2017/01/25 12:02]
gcooper
@@ Line 5: / Line 5: @@
 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 =====
-sockets
+http://en.wikipedia.org/wiki/Xen
-GB 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>
 egrep '^flags.*(vmx|svm)' /proc/cpuinfo
@@ Line 34: / Line 64: @@
 Use hardware supports Intel VT or AMD SVM for fully virtualized guests (Windows).
-**[[Ubuntu Server]]****[[ 8.04]]**
+==== Ubuntu Server 8.04 ====
 http://www.howtoforge.com/high-performance-xen-on-ubuntu-8.04-amd64
@@ Line 41: / Line 71: @@
 Create and install into a 10GB partition for Dom0
+<file>
 apt-get update
 apt-get upgrade
 apt-get install ubuntu-xen-server
-apt-get install vim [[ssh]]-server
+apt-get install vim openssh-server
+</file>
+<file>
 vi /etc/modules
-	loop max_loop=64
+loop max_loop=64
+</file>
+<file>
 uname -a
 xm list
+</file>
-**Centos 5.1**
+==== Centos 5.1 ====
-[[Minimal Server Install (Centos 5)]]
+[[computing:linux:minimal_centos_install|Minimal Server Install - CentOS 5]]
 . Boot to CD 1, the only CD needed

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