Crux will undergo maintenance on Monday, August 18, 2025, starting at 13:30 UTC (8:30 a.m. CDT 08/18) and ending at 21:30 UTC on Monday, August 18, 2025 (16:30 CDT 08/18). During this time, no jobs will run on the systems, and there will be no access to the login nodes. Filesystem access will be disrupted. Please contact support@alcf.anl.gov with any questions or concerns.