Service Desk
Scheduled service breaks on Puhti and Mahti
Puhti and Mahti supercomputers normally have maintenance breaks scheduled on the first Tuesday of every month. Planned service breaks are announced at least three weeks in advance. It allows sufficient time for all running jobs to complete safely. We always announce the planned duration of the break in advance and send updates in case of changes.
The jobs you run will not be interrupted by maintenance breaks. Maintenance windows are always reserved in advance, and only jobs that can safely finish before them are allowed to run. Thus, very short jobs can run even only moments before a maintenance break.
Scheduled breaks on the HPC web interfaces
Puhti and Mahti web interfaces have maintenance breaks scheduled bi-weekly on Tuesdays. We announce the service breaks in the web interface notification, as well as on this page, at least one week in advance. The duration is typically one hour, between 9–10.
Unscheduled breaks
Occasionally we may need to perform urgent maintenance due to technical or security reasons. In these cases we announce the break and reserve the time window for it as soon as possible.
Other services
- Sensitive Data services have service breaks on the first Wednesday of every month. We always inform users by email about any additional service breaks.
- Information about LUMI service breaks can be found on the LUMI website.
- Fairdata services’ planned maintenance breaks are listed on the Fairdata website.