DEVELOPMENT OF AN INNOVATIVE STORAGE MANAGER FOR A DISTRIBUTED CONTROL SYSTEM
C. Bisegni, G. Di Pirro, L. Foggetta, G. Mazzitelli, A. Stecchi · 2013
CHAOS is an INFN project aimed at the definition of a new control system standard for large experimental apparatus and particle accelerators based on innovative communication framework and control services concepts. !CHAOS has been developed to address the challenging requirements in terms of data throughput of the new accelerators under study at INFN. One of the main components of the !CHAOS framework is the historical engine (HST Engine), a cloud-like environment optimized for the fast storage of large amount of data produced by the control system's devices and services (I/O channels, alerts, commands, events, etc.), each with its own storage and aging rule. The HST subsystem is designed to be highly customizable, such to adapt to any desirable data storage technologies, database architecture, or indexing strategy and fully scalable in each part. The architecture of HST Engine and the results of preliminary tests for the evaluation of its performance are presented in this paper.