Document Actions
Storage and File system
Up to Table of Contents
Overview
Stallo has a "three folded" file system:
- a global accessible home area: /home (32 TB)
- a global accessible work / scratch area: /global/work (95 TB)
- a local accessible work / scratch area on each node: /local/work (~90 GB)
Home area
There is a 32 TB global accessible home area on the cluster, which is accessible from both the login nodes and all the compute nodes. The default size of the home directory's for each user are 50 GB. If more space is needed for permanent storage users have to apply for it. Please contact the system administrators, support-uit@notur.no, for more information about this.
The home area is for "permanent" storage only, so please do not use it for temporary storage during production runs.
Jobs using the home area for scratch files while running may be killed without any warning.
Work / scratch areas
There are two different work / scratch areas available on Stallo:
- There are an 95 TB global accessible work area on the cluster. This is accessible from both the login nodes and all the compute nodes as /global/work. This is the recommended work area, both because of size and performance!
- In addition, each compute node has a small work area of approximately 90 GB, only locally accessible on each node. This area is accessible as /local/work on each compute node. In general we do not recommend to use /local/work, both because of (the lack of) size and performance, however for some users this may be the best alternative.
These work areas should be used for all jobs running on Stallo.
After a job has finished old files should be deleted, this is to ensure that there are plenty of available space for new jobs. Files left on the work areas after a job has finished may be removed without any warning.
There are no backup of files stored on the work areas.
If you need permanent storage of large amounts of data, please contact the system administrators: support-uit@notur.no
Backup
Backup is taken of all files stored on /home. A full dump backup is made every week and stored for 3 months.
There are no backup of files stored on the work areas.
If you need permanent storage of large amounts of data, please contact the system administrators: support-uit@notur.no
