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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.

Billing

Terminology

  • Billing Unit (BU): A unit used for billing at CSC - each resource consumes a given amount of BUs per hour.

  • Cloud Billing Unit: Billing Units assigned to usage of cloud services. Satama usage consumes Cloud BUs.

  • CSC Project: A placeholder for the user's resources information - including: the number of Cloud BUs and the CSC services which are available for use.

  • Satama Project: A Satama project is one which is created at https://satama.csc.fi after the Satama service is activated at a CSC project.

Billing Model

Currently, Satama will bill for storage only. Billing is based on the amount of data stored. The account of resource usage is provided in one-hour increments. The rate is 1 Cloud BU/GiBh, i.e. 1 GiB of data stored at Satama will consume 1 Cloud BU per hour and 24 Cloud BU in a day.

If 10 GiB of storage is consumed, BU consumption can be calculated using the following formula

10 * 1 = 10 Cloud BUs per hour
A good way to estimate usage cost is the Billing Unit calculator utility. For more information about Billing in CSC, visit the Billing page.

Quota

The default quota for a new project is 50 GB, but this can be increased if needed. If you need more resources than the defaults, you can apply for more quota by contacting the Service Desk. See the Contact page for instructions. Quota requests are handled on a case-by-case basis depending on the currently available resources in Satama and the use case.