Changes to this message: Update Update Oct. 15th, 16:45: Dear users of SuperMUC, GPFS is currently working without problems, but the root cause for the repeated hangs has not yet been found. IBM is still working on the problem of the GPFS stabilty. We apologize for the inconvenience caused by this problem. This information is also available on our web server http://www.lrz-muenchen.de/services/compute/supermuc/aktuell/ali4430/ Hans-Georg Kleinhenz