Aim of the project is to develop protocols and applications that make easy access to data community of the infrastructure of distributed data storage. We will develop appropriate form of file system over IBP, we will provide better and more reliable form of manipulation with metadata, and we will integrate protocols used in Grid environment (e.g. GridFTP). The project will focus on security, where we integrate it together with appropriate authentication and authorization service, that is commonly used in distributed environment. We will also offer possibility of secured access to data and/or metadata.