Upd:SuperMUC: scheduled maintenance Jan 28  31

LRZ aktuell publish at lrz.de
Fr Feb 1 14:48:18 CET 2013

 Changes to this message: Extended maintenance continues
Update 3 (Feb 1 14:50): IBM is still investigating the cause of the
 problems observed in internal testing. It appears that there exists an
 incompatibility between one or more updated system software components.
 Therefore, no user operation can be expected for the weekend. We will
 update you on the status on Monday, Feb 4.
 Update (Jan 30 afternoon): In order to check additional hardware and
 firmware modifications that were done to improve the stability of the
 system (see also http://www.lrz.de/services/compute/supermuc/aktuell/
 ali4512/, as well as dedicated operation for a project that requires
 short-term use of the complete machine, user operation of the system is
 delayed to the afternoon of January 31.
 Dear users of the SuperMUC petascale system at LRZ,
 Due to a combined hard- and software maintenance, SuperMUC will be
 unavailable for user operation between January 28, 8:00 and the
 afternoon of January 31. Jobs still running at the beginning of the
 maintenance will be cancelled.
 The following changes are introduced by this maintenance:
   * Access to the PRACE network will become available to PRACE users,
   * LoadLeveler mail notification will be activated,
   * Licence servers will be accessible from the compute nodes,
   * The Infiniband software stack will be updated to a newer release,
   * Some presently missing packages will become available on the
     compute nodes (e.g., you can remove the workaround for a missing

 This information is also available on our web server

 Reinhold Bader

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