We are going to upgrade all of our Nine Kubernetes Engine (NKE) clusters to version 1.31 during the maintenance windows of July 9th and 10th 2025 starting at 00:00 UTC until 04:00 UTC. Affected customers have been informed via mail.

We are upgrading some software components of our virtualization environment in order to improve it's stability and reliability.

No service disruptions are expected and there will be no downtime of the virtual servers or platform services.

Maintenance work will only be performed during the night, the planned time windows are listed below.

• 17.06.2025 (23:00 - 06:00): ES34 (part 1/3)
• 18.06.2025 (23:00 - 06:00): ES34 (part 2/3)
• 19.06.2025 (23:00 - 06:00): ES34 (part 3/3)
• 30.06.2025 (23:00 - 06:00): CZ42 and CZ41 (part 1/4)
• 01.07.2025 (23:00 - 06:00): CZ42 and CZ41 (part 2/4)
• 02.07.2025 (23:00 - 06:00): CZ42 and CZ41 (part 3/4)
• 03.07.2025 (23:00 - 06:00): CZ42 and CZ41 (part 4/4)

Due to unforeseen complications during the first part of the upgrades, we decided to postpone the remaining maintenance work for approximately one month.

This will give us time to fix remaining issues, make sure that they should not come up when progressing with the rest of the upgrades and finally it will help keeping the infrastructure stable.

We would like to thank you for your patience.

During our regular maintenance window we are updating a component of our virtualization infrastructure in order to improve it's stability and reliability.

No service disruptions are expected and there will be no downtime of the virtual servers but there may be delays in processing changes that are made to virtual machines during the maintenance.

Due to unforeseen complications during the first part of the upgrades, we decided to postpone the remaining maintenance work for approximately one month.

This will give us time to fix remaining issues, make sure that they should not come up when progressing with the rest of the upgrades and finally it will help keeping the infrastructure stable.

We would like to thank you for your patience.

We are upgrading some software components of our virtualization environment in order to improve it's stability and reliability.

No service disruptions are expected and there will be no downtime of the virtual servers or platform services.

Maintenance work will only be performed during the night, the planned time windows are listed below.

• 27.05.2025 (23:00 - 06:00): ES34 (part 1/2)
• 28.05.2025 (23:00 - 06:00): ES34 (part 2/2)
• 09.06.2025 (23:00 - 06:00): CZ42 and CZ41 (part 1/2)
• 10.06.2025 (23:00 - 06:00): CZ42 and CZ41 (part 2/2)

The scheduled maintenance is now underway. We'll keep you updated on our progress.

The maintenance took much longer than anticipated but as a result we are able to skip the planned maintenance of tonight: 28.05.2025 (23:00 - 06:00): ES34 (part 2/2).

The next maintenance will be carried out as planned on the 09.06.2025.

Thanks for your patience.

Due to unforeseen complications during the first part of the upgrades, we decided to postpone the remaining maintenance work for approximately one month.

This will give us time to fix remaining issues, make sure that they should not come up when progressing with the rest of the upgrades and finally it will help keeping the infrastructure stable.

We would like to thank you for your patience.

We are observing a sporadic short unresponsiveness to monitoring queries of the core router in CZ41.

To resolve this issue we will reload the affected router during our weekly maintenance window.

This impacts only BGP Transit customers who will be informed directly. No impact is expected for all other customers.

The scheduled maintenance is now underway. We'll keep you updated on our progress.

The maintenance is now complete. Thanks for your patience.

We are experiencing some issues with the storage subsystem used in NKE Kubernetes Clusters and also VCluster resources. We are investigating the issue and will publish updates to it here.

The system is currently not functioning as intended. We are actively working with the vendor of our storage solution to restore full functionality. At this stage, we are validating configuration adjustments to resolve the issue. Updates on our progress will be provided on this status page.

The core issue has been resolved, and we are currently monitoring the system as it recovers. We apologize for any inconvenience this may have caused and appreciate your patience.

The system has fully recovered.

We are currently experiencing some issues with our VClusters. The cause of the problem has been identified and it is currently recovering. We will be posting an update once the service has recovered.

We were able to resolve the VCluster issues. All virtual clusters should be fully working again. We apologize for any inconvenience this may have caused and appreciate your patience.

During our regular maintenance window we are updating a component of our virtualization infrastructure in order to improve it's stability and reliability.

No service disruptions are expected and there will be no downtime of the virtual servers but there may be delays in processing changes that are made to virtual machines during the maintenance.

The scheduled maintenance is now underway. We'll keep you updated on our progress.

The maintenance is now complete. Thanks for your patience.

We will perform a software upgrade on the NKE files service (NFS server) on the es34 cluster, this affects the Read Write Many (RWX) storage.

Due to restarts of these services, connection interruptions and momentary service disruptions are to be expected. Everything should recover automatically once the services are running again.

The scheduled maintenance is now underway. We'll keep you updated on our progress.

The maintenance is now complete. Thanks for your patience.