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Announcement: Trillium AI Expansion Installation Maintenance Shutdowns 1. May 26/27, 2026: Shutdown of the Trillium compute nodes, starting at 4 AM EDT on May 26th. The Trillium login nodes as well as OnDemand, HPSS, the Teach cluster, and Balam, will remain available during this maintenance. The compute nodes are expected to be back in service at some time on May 27th. 2. A multi-day chiller maintenance; this will involve a shutdown of all systems. 3. Another four-day full datacentre shutdown will be required, likely at the end of June. 4. Finally, a two week long shutdown of Trillium compute nodes will be required in the summer, likely in July. During this time the Trillium login nodes, storage and Open Ondemand will remain up. More information and precise dates for these last three maintenance shutdowns will be announced later. Wed Apr 30, 2026, 3:00 pm: System have been updated to mitigate known security risks, and are back in service. Note that no actual security breaches were found. Wed Apr 29, 2026, 5:25 pm: For security reasons, login access to all systems has been disabled, as have OnDemand Apps. Compute jobs are still allowed to run. Thu Apr 23, 2026, 10:00 am: The Trillium file system has issues and may be slow on certain nodes. We are still investigating.
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