As indicated in ALI 3942, an interruption of electrical power is scheduled for the weekend Feb 26-27. On the Linux cluster, additional maintenance measures will also be required. Therefore, the cluster will be unavailable for user operation between Friday, February 25, 17:00 and Tuesday, March 1, 18:00 All running batch jobs will be removed from the systems; we will leave the queues open until Friday 16:00, but recommend to set a user hold on any queued jobs which do not start execution in time to complete by Friday afternoon. Note: A job can be put into user hold by issuing the command qalter -h u <job id> Once the cluster has been returned to operation, you need to explicitly remove the hold again with qrls -h u <job id> This information is also available on our web server http://www.lrz-muenchen.de/services/compute/hlrb/aktuell/ali3950/ Reinhold Bader