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Puhti and Mahti computing services have been decommissioned. Puhti and Mahti login nodes and storage services will remain available until 15 October 2026, but are no longer covered by service contracts. Please clean up and migrate your data to Roihu ASAP. See Roihu data migration guide for instructions.

How to store data on Pouta?

Pouta provides two choices which are not backed up by CSC:

  • Temporary storage via local disks attached to virtual machines. OpenStack calls this ephemeral (meaning lasting for a very short time) storage.
  • Longer term storage via Volumes. Volumes appear as raw disks attached to virtual machines. See:

Alternatively, you can access data in Allas object storage.