Dear users of the HLRB-II at LRZ, The initial installation of the next-generation system, SuperMUC, is nearing regular user operation. As described in ALI 4069, the system has a computational power which is roughly equivalent to that of HLRB-II. LRZ has fixed the following time schedule for migration of all users from HLRB-II to the new system: 1. On the afternoon of September 13, all HLRB-II users gain access to the new machine 2. Between Sept. 13 and end of October, both HLRB-II and the new system will be online and available for batch processing 3. At the end of October, HLRB-II will be retired from user operation. Please note that at this time there will be an interruption of operation for all HPC systems for a few days because the data on the HOME file systems need to be migrated to a new and much more powerful file server; precise dates will be announced separately. Please note that beginning on September 10, LRZ will only receive limited maintenance for the HLRB-II. In particular, it may happen that the system loses partitions, or that the $OPT_TMP or $PROJECT file system is completely removed in case a critical part fails, if the replacement costs are considered unacceptably high. For this reason, we urgently recommend that you archive all still needed HLRB-II data which reside on the $OPT_TMP or $PROJECT file systems to TSM tape storage as soon as possible. A procedure for migrating your scratch and project data from HLRB-II to the new system is described in the backup and archiving document for the HPC systems; please look at the scenarios 2 and 3 for details on how to perform the data migration. The $HOME file system will access the same NAS space on both systems, hence you do not need to migrate any data from there yourself. This information is also available on our web server http://www.lrz-muenchen.de/services/compute/hlrb/aktuell/ali4102/ Reinhold Bader