SNIC Storage resources

SNIC provides storage through storage projects.

The resources provided are made available through open procedures to support the best of breed in Swedish research and to facilitate new research. The purpose of these allocations, granted by the Swedish National Allocations Committee (SNAC), is to provide large scale data storage for “live” or “working” research data, also known as active research data.

  • Storage projects are NOT supposed to be used for backups and such requests for allocation will be rejected. Please, check with your university (home institution/organisation) IT department about backup services, strategies and policies in place.
  • Storage projects are NOT supposed to be used as archiving services, long-term storage or repository for “static” data. Once data is no longer in the process of change, and the decision on which data should be retained shared and/or preserved has been taken, data should be moved toward appropriate data services. The higher education institutions are responsible for archiving and long-term preservation of research data produced by researchers employed by them.

Available resources

Centre Storage

Centre storage, as defined by SNIC, is a storage solution that lives independently of the computational resources and can be accessed from all such resources at a centre. Key features include the ability to access the same filesystem in the same way on all computational resources at a centre and a unified structure and nomenclature for all centra. Unlike cluster storage which is tightly associated with a single cluster and thus has a limited lifetime, centre storage does not require the users to migrate their data when clusters are decommissioned, not even when the storage hardware itself is being replaced.

Centre Storage typically include a high-performance parallel filesystem, e.g. Spectrum Scale or Lustre.

Swestore / dCache

Swestore can offload the Centre storage, its raison d'être, and while it is deployed and distributed across SNIC centres, you can benefit from the advantages of, among other things, locality and redundancy effects.

Access to data is protected using dual copies on two different geographical locations as well as block redundancy (RAID-6) on the individual storage servers. There is no backup of data stored in Swestore, except by special agreement.
The data is accessible via multiple access methods, like gridftp, webdav and NFSv4.1.

Please refer to Using Swestore for more information.

SSC Storage

The SNIC Science Cloud provides object storage based on an underlying CEPH solution.

LUMI Storage

Lumi has three tiers of storage. LUMI-F is Flash storage for high performance. LUMI-P consists of Lustre storage. LUMI-C is CEPH-based object storage. You do not apply for any particular type of storage, but may combine the three types of storage at your discretion, as long as you stay within the amount granted to your project and do not exceed the quota for any of the storage types at any time. If you can justify an increased quota during the project, it is obtainable by contacting the LUMI User Support Team, LUST.

Additional resources

In addition to the resources above for project storage, SNIC provides some other types of storage. Home directories for your login and tape storage for backup and inexpensive storage of data less frequently used are examples of such storage resources. By agreement and for fee SNIC also makes available resources for select infrastructures, e.g. NGI and LHCK.

Last modified: 2021-11-29