Dear users of the new IB cluster at LRZ, probably due to the failure of a critical component the complete cluster has gone offline on the evening of Aug. 25. We will investigate the cause for this crash on Friday morning and attempt to return to user operation as soon as possible. We will keep you updated about the status of the cluster via this document. Apologies for the disruption of your work. This information is also available on our web server http://www.lrz-muenchen.de/services/compute/aktuell/ali4092/ Reinhold Bader