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This month
Adminspotting : Zone0, le serveur parfait » UNIX Garden
L’idée était de profi ter du dimensionnement de ce petit monstre pour monter une plate-forme architecturée autour de Xen. Vous le savez peut-être, chez GCU, on est très BSD. Nous avions donc à l’esprit de monter l’architecture suivante :
* dom0 sous NetBSD ;
* domU shells, destiné à accueillir des accès ssh pour les membres du groupe ayant cotisé à la mirobolante dîme annuelle ;
* domU services, qui hébergera les services classiques hors HTTP ;
* domU gcu où se trouvera le site principal et ses moult plugins ;
* domU www, domaine où nous hébergerons les sites tiers.
Afin de profi ter au maximum de ce nouveau matériel, nous envisagions également, naïfs que nous sommes, de n’avoir que des systèmes de type amd64. Nous verrons que cet espoir s’est envolé. Il est important de noter que si NetBSD dispose d’une version dotée d’un noyau de type domU, ce n’est pas le cas d’OpenBSD, aussi, c’est uniquement grâce au mode HVM (Hardware Virtual Machine) de Xen que nous serons en mesure de mettre en place des domUs ne bénéficiant pas de noyaux modifiés.
Cool Solutions: Configuring a Xen VM for Live Migration within a Cluster
By default, migrating a Xen Virtual Machine (VM) resource causes it to shutdown on the current node and restart on the new one. Once you configure a Xen VM within the High Availability Storage Infrastructure (HASI), how do you configure the Xen VM resource to live migrate among the cluster nodes?
XenAccess: Main Page
The XenAccess project was inspired by ongoing research within the Georgia Tech Information Security Center (GTISC). The purpose of this library is to make it easier for other researchers to experiment with the many uses of memory introspection without needing to focus on the low-level details of introspection. If you are using this library and come up with a useful extension to it, we are always happy to receive patches.
Installing Xen On An Ubuntu 8.04 (Hardy Heron) Server From The Ubuntu Repositories | HowtoForge - Linux Howtos and Tutorials
This tutorial provides step-by-step instructions on how to install Xen on an Ubuntu Hardy Heron (Ubuntu 8.04) server system (i386). You can find all the software used here in the Ubuntu repositories, so no external files (apart from a fixed Ubuntu Xen kernel to enable networking for the virtual machines) or compilation are needed.
Xen dedibox - TcWeb
quelques notes sur l'utilisation de l'hyperviseur Xen sur une dedibox avec une debian etch. Pour l'installation sur une dedibox v2 voir Xen dedibox2
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May 2008
Move an LVM-based virtual machine to another host
For those running Xen on servers with no back-end SAN, the following instructions detail the steps necessary to move an LVM-based virtual machine to a new physical host. There may be more elegant ways to achieve this, but this is what worked for me.
April 2008
XenSource: Downloads
A V2V tool to convert VMware and Microsoft Virtual Server/Virtual PC virtual machines (with Microsoft Windows installed) to the Xen Virtual Appliance (XVA) format.
OpenNebula :: start
OpenNEbula (former GridHypervisor) is a virtual infrastructure engine that enables the dynamic deployment and re-allocation of virtual machines on a pool of physical resources. ONE (OpenNEbula) extends the benefits of virtualization platforms from a single physical resource to a pool of resources, decoupling the server not only from the physical infrastructure but also from the physical location.
Openfiler — Openfiler Community
Openfiler is a powerful, intuitive browser-based network storage software distribution. Openfiler ScreenshotsOpenfiler delivers file-based Network Attached Storage and block-based Storage Area Networking in a single framework.
Openfiler is built on the rPath Linux metadistribution and is distributed as a stand-alone Linux distribution. The entire software stack interfaces with third-party software that is all open source.
File-based networking protocols supported by Openfiler include: NFS, SMB/CIFS, HTTP/WebDAV and FTP. Network directories supported by Openfiler include NIS, LDAP (with support for SMB/CIFS encrypted passwords), Active Directory (in native and mixed modes) and Hesiod. Authentication protocols include Kerberos 5.
Openfiler includes support for volume-based partitioning, iSCSI (target and initiator), scheduled snapshots, resource quota, and a single unified interface for share management which makes allocating shares for various network file-system protocols a breeze.
March 2008
Cool Solutions: A Xen Virtual Machine Monitor Plugin for Nagios
This document describes a Nagios plugin — a "Xen Virtual Machine Monitor" which can be easily integrated in an existing Nagios system environment.
Automating Xen VM deployment with SystemImager - SystemImager
One advantage of server virtualization is the ability to rapidly provision new production environments. Automatic virtual machine deployment can significantly speed up the time to instantiate new services or reallocate resources depending on the user needs.
This article focuses on the integration of SystemImager and Xen to create a totally open source framework able to manage on-demand deployment of virtual machines, such as physical machines, using a single centralized point of management.
This approach allows to strongly reduce IT costs and simplify administrative tasks for enterprise data centers, even with a complex and/or reduced set of hardware resources, exploiting the dynamic-provisioning functionalities of SystemImager and virtualization advantages of Xen.
Enomalism – Trac
Enomalism Beta Program ¶
The Enomalism cloud computing platform currently in beta and is available to select Enomaly partners. Please enter tickets using the New Ticket link above. Full source code is available under Browse Source.
What is Enomalism? ¶
Enomalism is an open source web-based virtual infrastructure platform. Designed to answer the complexity of managing globally disperse virtual server environments. Enomalism helps to automate the transition to a cloud computing environment by reducing an IT organizations overall workload. The easy to use dashboard can help with issues including deployment planning, load balancing, automatic VM migration, configuration management, and capacity diagnosis.
