[de.NBI Cloud Bielefeld - Production] planned downtime (last reminder)

09.09.2022 - 11:44
Dear de.NBI Cloud Bielefeld users, Bielefeld University is scheduling its yearly diesel generator/power outage tests on the whole building complex. These tests also affect our cloud infrastructure. In order to protect our hardware from any unexpected power losses or power spikes, we will shut down all compute nodes during the generator tests. We will use this downtime to perform some additional maintenance on the cloud infrastructure: - update the (virtual) network setup to gain better high availability performance - upgrade Openstack to the next major release - upgrade our service server The downtime/maintenance is scheduled from September 12th, 2022 - 12:00 CEST to September 14th, 2022 - 18:00 CEST All running instances will power off as a result. To prevent any data loss on your instances, please shut them down gracefully in advance. We recommend shutting down instances a few hours (or one day) before the planned schedule as we will start to shut down compute nodes at 12:00 CEST. After maintenance is done, you will be able to start your instances again. Best regards, de.NBI Cloud Bielefeld