VIDEO: XEN High Availability-Cluster V3 Windows Server 2012 live migration

This is a guest blog post by Georg Dörn, a long-time system administrator and open source enthusiast. Georg founded his company its-doern in 2008, to develop solutions for customers entirely from open source software.

The Setup

On the right, you see the XEN-HA Cluster which is based on two identical Debian XEN Hosts (Debian Lenny, Xen 4.0.1, Kernel 3.2.16) with DRDB 8.4.1 (1 x SATA Disks and sync with 2 x GBit NICs per Node) and heartbeat 2.1.3 .

The whole system runs with open source software! This XEN-HA cluster is not an experimental system: It works as a video production system for many of our customers.

The Video

The video shows you an RDP session in which a Windows 2012 Beta terminal server VM with Univention GPLPV-drivers is running on the XEN-HA cluster. Within the RDP session a video is playing while live migrating the terminal server VM from one XEN-HA cluster node to the other node and back again without any downtime. You will see a very short stop playing the video at 2:22 and 3:55, where only one ping is lost during migration.

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About Lars Kurth

Lars Kurth is a highly effective, passionate community manager with strong experience of working with open source communities (Symbian, Symbian DevCo, Eclipse, GNU) and currently is community manager for xen.org. Lars has 9 years of experience building and leading engineering teams and a track record of executing several change programs impacting 1000 users. Lars has 16 years of industry experience in the tools and mobile sector working at ARM, Symbian Ltd, Symbian Foundation and Nokia. Lars has strong analytical, communication, influencing and presentation skills, good knowledge of marketing and product management and extensive background in C/C , Java and software development practices which he learned working as community manager, product manager, chief architect, engineering manager and software developer. If you want to know more, check out uk.linkedin.com/in/larskurth. Personally, Lars has a wide range of interests such as literature, theatre, cinema, cooking and gardening. He is particularly fascinated by orchids and carnivorous plants and has built a rather large collection of plants from all over the world. His love for plants extends into a passion for travel, in particular to see plants grow in their native habitats.