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RWTH High Performance Computing (HPC)

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[CLAIX-2025] Switch replacement

Partial Maintenance

Thu 04/30/2026 10:00 AM - Thu 04/30/2026 03:00 PM

Due to hardware issues, two fabric switches are being replaced. This is an interrupting maintenance. Until the fabric operation is restored, the CLAIX-2025 test operation is suspended. We will open the cluster again as soon as possible.

30.04.2026 09:57

Cluster Under Emergency Maintenance

Partial Maintenance

Thu 04/30/2026 07:45 AM - Thu 04/30/2026 11:03 AM

Due to a unpatched critical security issue, all cluster nodes are under temporary emergency maintenance. No access to the nodes is possible until further notice.

30.04.2026 08:02

Updates

The security issue was mitigated, no running job should have been affected.

30.04.2026 09:50

The jupyterhub needs to be rebooted to mitigate the security issue. The service will be interrupted during the reboot. The reboot is planned for ~10:45 CEST.

30.04.2026 10:25

The jupyterhub was rebooted.

30.04.2026 11:03