Changes to this message: Update Upd: The system is back in operation. There is still a rebuild of the data storage system going on in the background. We expect a moderate impact on performance for I/O for some hours caused by this issue. We are sorry for the delay and thank for your patience. ----------------------------------------------------------------------- Upd: After the power outage the storage system has not yet returned to normal status. Therefore we can not resume general user operation this morning. We keep you updated via this ALI. ----------------------------------------------------------------------- Dear users of the SuperMUC petaflop system at LRZ, In the course of preparing the electrical infrastructure for the phase 2 installation, a power outage of at least 48 hours is needed. During this outage the system will naturally not be available for user operation. Therefore, batch processing will be stopped on August 19, 6:00. It is expected that general user operation will be resumed in the morning of August 22. There will be no changes to the software environment during this interruption of operation. This information is also available on our web server http://www.lrz-muenchen.de/services/compute/supermuc/aktuell/ali4630/ Reinhold Bader