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

• None

Future planned maintenance

• None

Recently resolved problems and planned maintenance

• 2025-06-18 from 08:00 to 08:55 CEST: Downtime of Sigma’s login node due to updates.
• 2025-06-18 from 07:00 to 12:15 CEST: Rolling restart of Tetralith’s login nodes due to updates. At least two login nodes available at all times.
• 2025-06-16 around 17:15 CEST: All running jobs failed on Tetralith due to the job scheduler losing its network connection.
• 2025-06-14 from approx 09:20 CEST to 15:30 CEST: Freja (login nodes + compute nodes) unavailable due to unplanned power outage. All running jobs failed.
• 2025-06-14 from approx 09:20 CEST to 15:30 CEST: Berzelius (compute nodes) unavailable due to unplanned power outage. All running jobs failed.
• 2025-06-14 from approx 09:20 CEST to 17:30 CEST: Sigma (login nodes + compute nodes) unavailable due to unplanned power outage. All running jobs failed.
• 2025-06-14 from approx 09:20 CEST to 17:30 CEST: Tetralith (login nodes) unavailable due to unplanned power outage.
• 2025-06-14 from approx 09:20 CEST to 2025-06-15T03:10 CEST: Tetralith (compute nodes) unavailable due to unplanned power outage that also cause a Slurm problem. All running jobs failed.
• Some Berzelius project directories was incorrectly been automatically “hidden” (in the same way that happens 60 days after the project ends). The data is not lost, the directories can be found in /proj/.expired/. They will be restored to the normal location as soon as possible, but due to the weekend it might not happen until Monday June 2nd.
• 2025-05-23 from 09:00 CEST to and including 2025-05-26 (Prolonged to 2025-05-28): Berzelius unavailable due to planned filesystem migration. See this email for details.

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
• Freja