Changes between Version 4 and Version 5 of Doc/OS/Xen

Timestamp:

Feb 7, 2008, 1:12:36 PM (18 years ago)

Author:

/C=IE/O=Grid-Ireland/OU=cs.tcd.ie/L=RA-TCD/CN=Stephen O. Childs

Comment:

--

Doc/OS/Xen

@@ -7 +7 @@
     * Guest VMs are normally installed using the automated PXE/Kickstart installation configured by Quattor's AII software.
     * Guest VMs are installed on virtual "hardware" described in its own hardware template. For example, MAC addresses, disk sizes and names, CPU architecture, etc. can all be specified in the VMs hardware template, and will then be used to generate appropriate configuration files for guest VMs.
+
+The following combinations of Xen hosts and guests should work:
+
+|| '''Host OS'''  || '''Host Xen''' || '''Guest OS'''          || '''Comments''' ||
+|| slc450-i386    ||    3.0.3       || sl308-i386, slc450-i386 || Scientific Linux Cern used here rather than plain SL as profiles already available in QWG. ||
+|| sl450-x86_64   ||    3.0.3       || sl450-x86_64            || Xen guest disk is now xvda not sda (see [https://twiki.cern.ch/twiki/bin/view/LinuxSupport/UpdatingFromSLC44toSLC45 here]) ||
 
 = Install server configuration =
@@ -44 +50 @@
 
 = Guest configuration =
+ * As with the host, make sure the OS for the guest is correctly configured in {{{os_version_db}}}. '''Check the table above to ensure that the guest you're installing is compatible with the host OS.'''
+ * Create a hardware template for the machine based on {{{cfg/grid-ireland/hardware/machines/xen}}}. Note that the disk and RAM sizes defined in this template will be used to generate the Xen configuration for the VM. Also, from SL 4.5 the base disk should be {{{xvda}}} not {{{sda}}} (see {{{xen_mini_gt4_sl45}}} for an example.
+ * Set up the mapping between the node name and hardware template in the site databases template ({{{site/databases.tpl}}} or {{{pro_site_databases.tpl}}}.
+ * Include the template {{{config/xen/guest}}} in the node's template.