Polaris, Theta, and ThetaGPU will undergo regular maintenance on Monday, February 20, 2023, starting at 15:00 UTC (09:00 CST 02/20), and ending at 03:30 UTC on Tuesday, February 21 (21:30 CT 02/20). During this time, no jobs will be run on the systems and there will be no access to the login nodes. Filesystem access will be disrupted.