Speaker
Dr
Cristiano Bozza
(University of Salerno and INFN Gruppo Collegato di Salerno)
Description
The multi-site nature of the KM3NeT project has influenced the development
and evolution of its acquisition control software so that it doesn’t stick to a
single detector site or configuration. It is flexible and portable to the extent that
the same programs are used in data-taking shore station of neutrino
telescopes as well as in testing sites for detector components at different
stages of the integration. Flexibility is obtained through high modularity and
tight integration with the central database system. On the other hand, the
software architecture can be defined as \"maximally disconnected\" to ensure
that no \"single point of failure\" exists and that each software service can
continue to operate in the temporary absence of others. The most recent
development is dynamic resource provisioning and failover, to automatically
cope with the possible event of a hardware failure of one or more data taking
servers or network elements just before or during a transient neutrino burst: if
the number of damaged units is not too large (typically failures of one or two
units), the system automatically switches, within a few seconds, to a
downgraded but working configuration to ensure continuity of operation and
minimal data loss. Dynamic resource provisioning and failover is now entering
the stage of preliminary tests.
Author
Dr
Cristiano Bozza
(University of Salerno and INFN Gruppo Collegato di Salerno)
