The aim of this session is to discuss about Container Storage Interface , its specification and details on additional advanced operations provided by CSI-Addons. CSI specification defines an interface along with the minimum operational and packaging recommendations for a storage provider (SP) to implement a CSI compatible plugin. The CSI-Addons project hosts extensions to the CSI specification to provide advanced storage operations. By adding new procedures to the CSI-Addons Specification, additional operations for storage systems can be provided. The reference implementation is done on Kubernetes, and maintained in the Kubernetes CSI-Addons repository. Some of the advanced storage operations that are currently supported are reclaim space, network fence and volume replication.