Hydra OS upgrade

On Wednesday, June 26, at 06:00, we will upgrade the login nodes to Rocky Linux 8.10. During this upgrade, Hydra will be unavailable for approximately 30 minutes, but running jobs will not be impacted. At 08:00, we will also upgrade the Hydra gateway. During this time, internet access in Hydra will be unavailable; however, the login nodes will remain accessible and running jobs will not be impacted unless they require internet access.

We will also upgrade all worker nodes using a rolling upgrade approach. This means there will be no interruption, but the available compute capacity will be reduced. Depending on the load and the queue, this process can take up to five days.

If you have any comments or questions about this change, please contact us at VUB-HPC Support.