iRODS stands for Integrated Rule-Oriented Data System, which is an open source data-management software released under a 3-clause BSD license. iRods is not a highly reliable storage system as its iCAT metadata server is SPOF (single point of failure) and it does not provide true HA. Moreover, it has a very limited set of storage interfaces; it neither provides block storage nor RESTful access to the storage system, thus making it very restrictive. It's more suitable to store a small quantity of big files rather than both small and big files. iRods works in a traditional way, maintaining an index of the physical location, which is associated with the filename. The problem arises with multiple clients' request for the file location from the metadata server, applying more computing pressure on the metadata server, resulting in dependency on a single machine and performance bottlenecks.