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Warning!

Puhti and Mahti are being decommissioned in stages, and their storage areas will become fully unavailable from 15 October 2026. Clean up unnecessary files and move any data you need to keep by 31 August 2026. See the Roihu data migration guide for instructions on transferring your data to Roihu.

Puhti scratch is very full: keep only active data there and move or delete everything else. No new Puhti scratch quota will be granted.

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.