iRODS

iRODS stands for Integrated Rule-Oriented Data System, an open source data-management system released with a 3-clause BSD license. iRODS is not highly available and can be bottlenecked. Its iCAT metadata server is a single point of failure (SPoF) without true high availability (HA) or scalability. Moreover, it implements a very limited set of storage interfaces, providing neither block storage nor RESTful access modalities. iRODS is more effective at storing a relatively small number of large files than both a large number of mixed small and large files. iRODS implements a traditional metadata architecture, maintaining an index of the physical location of each filename.