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System Status ✓ Trillium ✓ OnDemand ✓ Globus ✓ HPSS ✓ Balam ✓ S4H ✓ Teach ✓ File system ✓ External Network Trillium AI Expansion Installation Maintenance Shutdown Schedule May 26/27, 2026: Shutdown of the Trillium compute nodes and HPSS, starting at 4 AM EDT on May 26th. The Trillium login nodes as well as OnDemand, the Teach cluster, and Balam, will remain available during this maintenance. HPSS will be back in service later on the same day (May 26th), while the Trillium compute nodes are expected to be back in service at some time on May 27th. June 9/10, 2026: A multi-day chiller maintenance; this will involve a shutdown of all systems. June 22-25, 2026: A 4-day full datacentre shutdown. The SciNet datacentre will undergo maintenance of several critical parts of the centre. This will require a full shutdown of all SciNet systems (Trillium, Balam, S4H, HPSS, Teach, as well as hosted equipment). mid July: A two-week long shutdown of Trillium compute nodes will be required in the summer. 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. Previous messages QuickStart Guides Trillium Quickstart HPSS archival storage Teach cluster FAQ (frequently asked questions) Acknowledging SciNet Tutorials, Manuals, etc. SciNet education material SciNet's YouTube channel Modules for Mist Commercial software Burst Buffer SSH keys SSH Tunneling Visualization Running Serial Jobs on Niagara Jupyter Hub