The HPC sites are connected via the secure PRACE high-speed network. The logical link between the supercomputers and the Cloud storage is realised by the Grid middleware UNICORE.

An LDAP infrastructure is used for a synchronized management of HBP groups and HBP users on the supercomputers, which is also connected to the central HBP OIDC server thus linking  HBP accounts (for the Collaboratory) with HPC accounts (for using supercomputers).