Storage areas, quota, and backup

Home directories

Each user has a home directory /nird/home/<username>, where <username> is the username. The default quota for home directories is 20 GiB and 100 000 files. To check the disk usage and quotas, type:

$ dusage

Home directories on NIRD also contain a backup of Betzy, Fram and Saga home directories (when relevant) in /nird/home/<username>/backup/fram and /nird/home/<username>/backup/saga. To account for this default quota is doubled when relevant. Note that this is a backup from the HPC cluster; you cannot transfer files to the cluster by putting them here.

Scratch directories

The total storage space of /scratch is 15 TB. Each user has a scratch directory /scratch/<username>. The area is meant as a temporary scratch area. This area is not backed up. When file system usage reaches 75%, files are subject to automatic deletion. There is no quota in the scratch area.

Project area

Each NIRD Data Storage project gets a project area /nird/projects/NSxxxxK, where NSxxxxK is the ID of the project.

The project area has a quota on disk space and the number of files, and you can see the quota and the current usage by running:

$ dusage -p NSxxxxK


In addition to geo-replication NIRD supports snapshots of project areas and home directories allowing for recovery of deleted data. For more information, visit the page Backup on Betzy, Fram, Saga and NIRD.


Starting at the 2020.1 resource allocation period, storage decommissioning procedures have been established for the NIRD project storage, to make storage more predictable for the projects and the provisioning more sustainable to Sigma2. For more details, please visit the data decommissioning policies page.