Storage and data

The physics data is the asset everything else exists to protect. The disk layer is eos; the custodial copy lives on tape in cta, which replaced castor. Around them: cernbox for people’s files, fts to move data between sites, rucio to keep track of where it all is, and cvmfs to push software the other way. The principle underneath: disk-tape-tiering.

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Topology

• Part of: governance-structure