Due to preventive maintenance on Argonne's water cooling plant, Polaris, Cerebras, Aurora, Sophia, and Crux will be unavailable from Friday, February 14, through Wednesday, February 19. The Eagle and Grand file systems and the Globus endpoints dtn#alcf_grand and dtn#alcf_eagle will also be unavailable. The outage will begin on Friday, February 14, at 9:00 a.m. CDT. We will notify users when our computing resources come back online.