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XtreemFS update 1.2.1

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XtreemFS team has just released an update for XtreemFS (version 1.2.1). This version contains mainly bug fixes, e.g. for FreeBSD and Fedora 12, and enhanced replica management. The new scrubber will automatically replace failed replicas.

Source code and packages are available for download on

There is no change in the database or OSD storage, so an update from 1.2 should work out of the box. The usual advice: backup important data before upgrading.


Eurosys Doctoral Workshop - Deadline: February 14

The submission deadline for the Eurosys Doctoral Workshop is the 14th of February 2010. The workshop is co-located with Eurosys in Paris.

The web page is at

Here is a brief description from the organizers:

"The doctoral workshop, which will take place on the day before the main EuroSys 2010 program, will provide a forum for PhD students to present their work and receive constructive feedback from experts in the field as well as from peers. Technical presentations will be augmented with general advice and discussions about getting a PhD, doing research, and post-doctoral careers. We invite applications from PhD students at any stage of their doctoral studies, and plan to have about 30 attendees."



XtreemOS 2.1 out very soon!

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This release update will include:
  • Improved installer with a new xosautoconfig tool to greatly simply and automate installation of XtreemOS instances.
  • A number of high impact bug fixes, along with work on stability and correctness.
  • XtreemFS 1.2, which has a number of new features along with enhanced performance and stability
  • XtreemOS MD (Mobile Device) - This new version integrates XtreemOS on Internet Tablets, beginning with the Nokia N810. This makes it possible to launch jobs and interact with XtreemOS resources via a special client.
  • Virtual Nodes - a framework to provide fault tolerance for grid applications by replicating them over multiple nodes.
  • XOSSAGA - a set of technologies to allow you to run SAGA compliant  applications on top of XtreemOS unmodified.



XtreemOS tutorial at OGF28

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"Easing Application Execution in Grids with XtreemOS Operating System"

This tutorial presents XtreemOS Grid system from the user point of view. Its goal is to show why XtreemOS is a system of choice for Grid users who want to easily execute their applications while taking advantage of advanced features for job management. We show what can be done with XtreemOS with regards to application execution, how it can be done and how the available features are implemented. Demonstrations will be presented throughout the tutorial.

Target audience: Grid users, Grid application developers, Grid system and middleware designers

Session leaders: Christine Morin (INRIA), Yvon Jégou (INRIA), Toni Cortes (BSC), Michael Schöttner (Heinrich-Heine Universität Düsseldorf)

Session agenda

- Overview of XtreemOS
- Dynamic resource discovery for job execution
- Resource management
        - Resource selection
        - Resource reservation
        - Resource (co-)allocation
- Job Management
    - Job control
    - Job dependency management
    - Job monitoring & auditing
    - Support for interactive applications
    - Examples of job execution
        - Workflow
        - MPI applications
- Reliable job execution
    - XtreemOS-GCP checkpointing service for distributed applications
        - Integration of different checkpointer packages
        - Generic callbacks for application-level optimizations
        - Channel checkpointing with heterogenous checkpointer packages
- Executing SAGA applications on XtreemOS

Event date and location

Ludwig-Maximilians-Universität München
Munich, Germany
March 15-19, 2010

More information:


XtreemOS 2.0 红旗Asianux版 发布

XtreemOS 2.0 RedFlag Asianux Version

XtreemOS 2.0 RedFlag Asianux Version available for download!

We are pleased to announce the availability of XtreemOS 2.0 RedFlag Asianux Version.

The XtreemOS 2.0 RedFlag Asianux Version is based on RedFlag Asianux 3.0SP2. You can find XtreemOS 2.0 official release notes at the following URL to learn about its functionalities:

An installation tool is provided for users to install all XtreemOScomponents on RedFlag Asianux 3.0 SP2 with Tools-CD installed already. There is also a Chinese user guide in the "DOC" directory.

If you want to install the XtreemOS 2.0 RedFlag Asianux Version, please refer to the release notes in the disc.

Getting XtreemOS 2.0 RedFlag Asianux Version

The XtreemOS 2.0 RedFlag Asianux Version can be downloaded from the Red Flag website:

The source code is available at

Press release in Chinese