DCache
DCache is 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. dCache is open source software built in Java and is used by, among others, ten out of fourteen Tier1 sites to to store data from the .
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 system are performed automatically and invisibly to the user. Beside through protocols specific to , data in dCache can be accessed via as well as through .
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