The LFC (LCG File Catalog) is a data catalog containing logical to physical file mappings. Depending on the VO deployment model, the LFC is installed centrally or locally.

The LFC is a secure catalog, supporting GSI security and VOMS. In the LFC, a given file is represented by a Grid Unique IDentifier (GUID). A given file replicated at different sites is then considered as the same file, thanks to this GUID, but (can) appear as a unique logical entry in the LFC catalog.

This version uses Oracle as a database backend.