Accounting in the CloudVeneto private cloud

CloudVeneto is a private cloud implemented as the result of merging two existing infrastructures: INFN Cloud Area Padovana, and owned by 10 departments University Padova. This infrastructure full production facility, in continuous growth, both terms users, computing storage resources. Even if usage not regulated strict pay-per-use model, availability accounting information for such requirement, to detect resources allocated user communities are effciently used, perform an effective capacity planning. We present this paper how system used evolved over time, focusing on framework being now, integrating components.