dCache provides a system for storing and retrieving huge amounts of data, distributed among a large number of heterogenous server nodes, under a single virtual filesystem tree with a variety of standard access methods. Depending on the Persistency Model, dCache provides methods for exchanging data with backend (tertiary) Storage Systems as well as space management, pool attraction, dataset replication, hot spot determination and recovery from disk or node failures. Connected to a tertiary storage system, the cache simulates unlimited direct access storage space. Data exchanges to and from the underlying HSM are performed automatically and invisibly to the user. Beside HEP specific protocols, data in dCache can be accessed via NFSv4.1 (pNFS) as well as through WebDav.

 

 

Category

Middleware [2]

 

Scientific areas

High Energy Physics [3]

Computing - Grid [4]

Computing - Cloud [5]

Neutrino Physics [6]

Light Source [7]

 

Main features

Data management [8]

File management tools [9]

 

License

GNU Affero General Public License 3.0 (AGPL-3.0) [10]

 

Supported Operating Systems

Linux [11]

Unix [12]

 

Supported CPU Architectures

All (architecture independent) [13]

 

Programming languages

Java [14]

 

Build tools

 

Test tools