System status

Please note: this is a manually updated message.

We will try to update this message when we have major user-visible problems on any of our systems. We also provide information via email to all users of affected systems (via the somesystemname-users@lists.nsc.liu.se mailing lists).

If something is not working, please don’t hesitate to contact us even if this message says that everything is working! Sometimes we forget to update this page when we’re busy investigating a major problem…

Times and dates are in local time (CET/CEST) unless stated otherwise.

Ongoing

• 2025-01-20 from 09:00 CET: Berzelius unavailable due to expansion of the storage fabric. See this email for details.

Future planned maintenance

• none

Recently resolved problems and planned maintenance

• 2025-01-15 from 08:00 CET: Tetralith, Sigma and Freja will be unavailable due to significant maintenance (pipes, welding, etc.) on the datacenter cooling system. We estimate that the systems will remain down until lunch the next day (January 16th).
• 2024-12-11T08:00 CET Sigma will be undergoing planned maintenance and will not be accessible. See this email for more information.
• 2024-12-10 from 10:00 CET: Berzelius login nodes will undergo planned maintenance, one at a time. See this email for details.
• 2024-12-04T08:00 to 13:00 CET: Tetralith unavailable due to planned software upgrade. See this email for details.
• 2024-11-05T08:00 CET Sigma will be undergoing planned maintenance and will not be accessible. See this email for more information.
• 2024-10-13T10:53 to 2024-10-14T12:24 CEST - A problem with the Omni-Path network in Tetralith and Sigma caused various problems. All running jobs failed.

Queue system status

An overview of the overall system load is available on the status page.

Graphical representations of the current queue on some of our systems:

• Tetralith
• Sigma
• Bi