docs xen

xen:cpu

2007-06-30T21:39:56+02:00

Para-virtualisation works on all x86 CPU’s made in the last years. For full-virtualisation, hardware support is required. (on the Xen mailinglist on 15 februari 2007, Mats Petersson from AMD) * The “pacifica” which is now caled AMD-V is fairly easy to determine - if it uses Socket F, Socket AM2 then it’s AMD-V compatible, unless it’s a Sempron processor. Another key would be to look at the memory type, as all DDR2 processors (excluding Sempron’s again) are AMD-V capable. * Int…

xen:creation_of_a_domu

2008-04-05T10:38:59+02:00

Debian domU Create stock rootfs Install the debootstrap package on the dom0 if you don’t already have that package. Now create a minimal system installation in a subdirectory to bootstrap: apt-get install debootstrap mkdir -p /opt/xen/stock/deb-etch debootstrap --arch amd64 etch /opt/xen/stock/deb-etch ftp://ftp.debian.org/debian (this will use the /etc/apt/sources.list file on the dom0 in order to be able to find the Debian repository) ’’’’’’

xen:domu_backup

2007-07-02T10:58:26+02:00

#!/bin/bash ######################################### XENDIR=/opt/xen XENUS="xenmail xenldap xenldns xenadm xenfw xenweb" VOLUME=vg00 MAILTO=backup@localhost DATE=`date +%Y%m%d` DOMNAME=`uname -n` BACKUPDIR=/var/${DOMNAME}backup LOGDIR=/var/log/${DOMNAME}backup LOGFILE=${LOGDIR}/${DOMNAME}backup.log-${DATE} ######################################### function infoevent { echo "`date +%c` INFO $1" >> ${LOGFILE} } function warnevent { echo " `date +%c` WARNING $1" >> ${LOGFILE} echo …

xen:installation_of_dom0

2008-05-09T20:49:07+02:00

Debian Etch (current) Core OS and hypervisor create a bootable system With the availability of 64-bit hardware in mind, we only use the AMD64 port of Debian Etch in order to create Xen enabled servers. There are several reasons for this decision, one of them is to avoid the TLS-issue’s with the 32-bit Xen hypervisor on x86 CPU’s.’’’’’’’

xen:live-migration_infrastructure

2008-02-04T11:54:06+02:00

shared storage In order to be able to do a live migration of a Xen guest from one cluster member to another, some sort of shared storage is required. As the Xen guest won’t run on more than one cluster member at a time, a cluster filesystem is not required. That is, as long as you configure Xen to access the Xen guest by a physical device, not a file.’’’’’’’’’’’

xen:pass_devices_to_the_domu

2008-04-27T10:16:14+02:00

For example, you want to use a tape device in a domU. Therefore you need a PCI adapter, which is not used in the dom0. Then pass this device (entirely) to the domU. First find out the numbers. Second, use pciback.hide in grub.conf (on you dom0) to hide your SCSI card.

xen:pass_devices_to_the_dumu

2007-09-10T08:13:19+02:00

xen:paused_backups

2007-06-30T21:27:50+02:00

#!/bin/bash ######################################### DOMNAME=`uname -n` XENDIR=/opt/xen BACKUPDIR=/var/xen/paused-backups/ DATE=`date +%Y%m%d` MAILTO=backup@localhost LOGDIR=/var/log/xen LOGFILE=${LOGDIR}/paused-backup.log ######################################### function infoevent { echo "`date +%c` INFO $1"| tee -a ${LOGFILE} } function warnevent { echo " `date +%c` WARNING $1"| tee -a ${LOGFILE} echo "$1 on ${DATE}" | /usr/bin/mailx -s "$1" ${MAILTO} } cd ${XENDIR} rm -f ${…

xen:start

2008-04-28T08:17:41+02:00

Xen namespace: One of the reasons we use Xen based virtualization is to create a scalable and flexible development and test platform for the Hannibal system stack. Check the Hannibal section of this wiki for more information. Topics: Base: * installation of dom0 * creation of a domU

xen:vmware2xen

2008-04-17T13:51:09+02:00

Migration of image files VMware to xen migration German original: To convert a Linux VMWare Image to a normal image, below the most important commands: * install qemu * convert the VMware image to a RAW-Image ’