There is an electrical maintenance windows from Sunday 2026-11-08 08:00 until  Monday 2026-11-09 13:00.

Due to this the login nodes for Kebnekaise will be down from Sunday 2026-11-08 08:00 to Monday 13:00.

This means that no jobs will be running during that period, and jobs that would run into that time frame will not be allowed to start.

The main login node of Kebnekaise (kebnekaise.hpc2n.umu.se) is currently unavailable due to a pending reboot.

It will reboot 2026-10-20 07:30 and should be available again before 08:00, i.e. after ~30 minutes.

In the meantime you can use kebnekaise-amd.hpc2n.umu.se as a login node or our ThinLinc or OpenOnDemand portal to access the system.

See docs.hpc2n.umu.se for details on ThinLinc and OpenOnDemand

*UPDATE 2026-10-20 07:50*

The node is now online again

We are currently having some problem with the parallel file system on Kebnekaise (the one with home directories and most of the projects)

We have currently disabled all batch queues from starting new jobs to not cause problems for new jobs starting.

We trying to resolve this as fast as possible.

*UPDATE 2026-10-05 08:30*

Problem is now fixed and queues are running again.

We have a maintenance window on Kebnekaise 2026-09-22 - 25.

We will upgrade the batch system and the batch server.

The update requires updates to the database in two separate steps and will thus take quite a long time.

All accesses to Kebnekaise will be unavailable during this maintenance window, no batch jobs running, no logins available, including the OpenOnDemand portal.

Follow this page for progress information.

*UPDATE 2026-09-24 11:30*

We are now mostly done.

Login access to kebnekaise.hpc2n.umu.se is open.

On Thursday 20260827 starting at 19:00 there will be a maintenance on some network equipment that will cause temporary interrupts in connectivity to, and inside, HPC2N.

We expect this to take <3h.