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News about Uni Cloud OpenStack and Kubernetes
Storage Capacity in Uni Cloud Münster – OpenStack: Status Update
Tuesday, June 09, 2026 in OpenStack
Storage Capacity in Uni Cloud Münster – OpenStack: Status Update TL;DR: Our Ceph storage cluster is very full, and we currently cannot grant most requests for additional storage. New hardware is already on site, but before we can add it we need to …
Kubernetes Cluster – Changelog Q1 2026
Wednesday, March 18, 2026 in Kubernetes
What’s New for Tenants This quarter brings several changes that directly affect your workloads: Kubernetes v1.33: The cluster has been upgraded to Kubernetes v1.33. Check the Kubernetes 1.33 release notes for new features, deprecations, and API …
Storage outage on 22.08.2025
Monday, August 25, 2025 in OpenStack
Flapping OSDs Starting at 22.08.2025, 18:00, we noticed flapping OSDs. OSDs are Cephs storage daemons, where each daemon handles a specific disk in our cluster. So the Ceph OSD storage processes were marked down periodically. Around 70 of 1710 OSDs …
Security issue on 28.07.2025
Sunday, August 24, 2025 in OpenStack
Discovery We were notified by IVV5 about a potential security problem. They noticed wrong permissions on their directories: The group u0mitarb had permissions rwxs. We quickly found, that many directories, including the /usershare and …
Service outage on 02.07.2025 at SP4
Saturday, August 23, 2025 in OpenStack
Introduction There was a power maintenance on 01.07.2025 at around 22:30 which caused a single power line to fail. All hardware kept running, but we have seen the following issues, which caused a total outage: General slowness during power …