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Linux: Xen

by elaviar
Cet article est une présentation "rapide" de Xen. Il va nous permettre : * D'expliquer ce qu'est Xen ? * De définir le vocabulaire Xen. * D'indiquer quelques points fondamentaux sur les possibilités de Xen. * Ensuite, nous vous indiquerons un cheminement logique et progressif vers les autres articles Xen de ce site. * Pour terminer, quelques notes de versions. Bien entendu, tout cela dans un contexte Fedora.


Virtualize a Server with Minimal Downtime

by camel
When it's time to convert a physical machine to a virtual one, use these steps to make the move safely and with a small maintenance window.

OpenNebula :: start

by camel
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

by camel
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.

Enomalism – Trac

by camel & 1 other
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.

XenSource Knowledge Base : Creating a XenServer Storage Repository on a FAKERAID volume using dmraid

by camel
XenServer Host installation on a FAKERAID volume (as opposed to real hardware RAID volume) is not yet supported, but you can create a Storage Repository on a RAID volume after XenServer Host installation. For this procedure you need three hard disks, two which are configured as RAID1, and the third which is not a part of the RAID array.

Virtual Machine Manager: Home

by camel
The "Virtual Machine Manager" application (virt-manager for short package name) is a desktop user interface for managing virtual machines. It presents a summary view of running domains and their live performance & resource utilization statistics. A detailed view presents graphs showing performance & utilization over time. Ultimately it will allow creation of new domains, and configuration & adjustment of a domain's resource allocation & virtual hardware. Finally an embedded VNC client viewer presents a full graphical console to the guest domain.

Automating Xen Virtual Machine Deployment

by camel
While consolidating physical to virtual machines using Xen,we want to be able to deploy and manage virtual machines in the same way we manage and deploy physical machines. For operators and support people there should be no difference between virtual and physical installations. Integrating Virtual Machines with the rest of the infrastructure, should have a low impact on the existing infrastructure. Typically, Virtual machine vendors have their own tools to deploy and manage virtual machines. Apart from the vendor lock-in to that specific virtual machine platform , it requires the administrators to learn yet another platform that they need to understand and manage, something we want to prevent. This paper discusses how we integrated SystemImager with Xen, hence creating a totally open source deployment framework for the popular open source Virtual Machine monitor. We will document both development of our tools and go more in depth on other infrastructure related issues when using Xen System Imaging environments in combination with Virtual machines can also be used to ensure safe production deployments. By saving your current production image before updating to your new production image, you have a highly reliable contingency mechanism. If the new production environment is found to be flawed, simply roll-back to the last production image on the virtual machines with a simple update command! Xen has become one of the most popular virtualisation platforms over the last year, although not such a young project, it is now rapidly gaining acceptance in the corporate world as a valuable alternative to VMWare. Version 5.2 - Le Site d'aide a l'utilisation de Linux

by camel (via)
Nous verrons dans cet article comment installer Xen sur une machine n'ayant pas les instructions matérielles de virtualisation (VT) en utilisant LVM pour partitionner avec flexibilité nos différentes machines virtuelles. Le tout est réalisé grâce à Debian Etch avec les bons noyaux qui vont bien. J'ai aussi utilisé le noyau officiel de chez Xen afin d'avoir quelque chose de propre (enfin dans la limite du possible). Attention, mon tutoriel prends de véritables adresses IP, je n'ai donc aucun besoin de NAT. Si tel est votre problème, achetez le numéro 100 de GLMF, il contient le serveur parfait et un setup bien plus avancé que le miens :)


Download of the day: Oracle VM

by camel
Virtualization is the process of abstracting computing resources such that multiple operating system and application images can share a single physical server, bringing significant cost-of-ownership and manageability benefits. Through its Oracle VM product, Oracle offers scalable, low-cost server virtualization for heterogeneous applications. Oracle VM is free server virtualization software that fully supports both Oracle and non-Oracle applications, and is three times more efficient than other server virtualization products. Consisting of Xen’s open source server software and an integrated Web browser-based management console, Oracle VM provides an easy-to-use graphical interface for creating and managing virtual server pools, running on x86 and x86-64-based systems, across an enterprise.

XenMan - Open Source Virtualization Management

by camel
XenMan is an intuitive, graphical management tool aimed at operational lifecycle management for the Xen virtualization platform. XenMan is built on the firm design philosophy that ease-of-use and sophistication can, and should, co-exist in a single management tool. So, XenMan should hopefully prove valuable to both seasoned Xen Administrators as well as those just seeking an introduction to Xen Virtualization.

2006 Release: XenSource XenServer and XenExpress

by camel
Today XenSource adds to its commercial offering two new solutions: XenServer and XenExpress. Both are based on the Xen open source hypervisor, and both features the management tools already powering the XenEnteprise solution.

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