Dear users of the Linux-Cluster systems at LRZ, due to a necessary operating system update the ICE and UV systems will be unavailable for user operation for a few days. The maintenance starts on Monday, Jan 14 at 8:00. We expect the systems to be returned to user operation during the afternoon of Jan 16. Further changes that apply post-maintenance will be announced via this document. This information is also available on our web server http://www.lrz-muenchen.de/services/compute/aktuell/ali4483/ Reinhold Bader