Open Science Data Federation

Map of the Open Science Data Federation
US Map featuring the locations of current OSDF architectural components.

What is the Open Science Data Federation?

The Open Science Data Federation (OSDF) is an OSG service that enables users and institutions to make datasets available to distributed high-throughput computing (dHTC) environments such as the Open Science Pool (OSPool). The OSDF provides execution points with remote access to data via a global namespace and a set of data caches which can access data stored in data origins.

By providing the distributed data access layer via the caches, jobs running in the OSPool (or any other resource pool) can reduce wide-area network consumption, load on the data origins, and latency of data access.

Who can use the OSDF?

Any US-based academic, government, or non-profit institution may operate a data origin to export their users’ data. Researchers with an OSG-Connect account may also use the origin at the OSG-Connect access point.

To learn how to access your data through the OSDF, please reach out to our team of Research Computing Facilitators through [email protected].

Who can access my data?

Access control for the OSDF is managed by the origin service. The origin can be configured to make data public or private and can control the rules for sharing. For example, the OSG-Connect service allows users to make their data accessible to all (public) or only accessible to their own jobs.

The data may additionally be visible to the administrators of the cache services, and the execution point where the job runs. Non-public data is encrypted when sent over the network but not on disk.

Who manages the OSDF?

The origins on the OSDF are managed by the projects or institutions which own the underlying storage. The caches are largely managed by OSG staff, who remotely operate the services. Some caches are dedicated to a specific experiment; a number of caches are specific to the LIGO experiment.

The cache hardware is distributed throughout the US, including points of presence in the Internet2 and ESNet networks and universities facilities such as UW-Madison, Chicago, Syracuse, UCSD, and Nebraska.