The ALCF's Polaris, Aurora, Sophia, and Crux systems will undergo maintenance on Monday, March 24, 2025, starting at 14:00 UTC (9:00 a.m. CDT 03/24) and ending at 22:00 UTC on Monday, March 24 (5:00 p.m. CDT 03/24). 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, and ALCF Globus endpoints will be unavailable. Please contact support@alcf.anl.gov with any questions, comments, or concerns.