Unscheduled service break on Mahti and Puhti: May 15 – May 18

Time: Friday 15.5.2026 09:00 – Monday 18.5.2026 18:00 EEST

Both Mahti and Puhti are currently undergoing urgent maintenance due to security vulnerabilities.

The security and integrity of your data and the systems is of the highest importance to us, which is why we are taking the time needed to implement mitigations properly before opening  access. We plan to open the systems on Monday.

All compute nodes will be rebooted, so some longer jobs may have been interrupted.