Some XSEDE Service Providers (SPs) offer mass storage systems. These systems provide orders of magnitude more data storage than personal or (most) academic departmental storage systems and are intended to facilitate high-end scientific computing and data analysis activities. These mass storage systems are nearly always accessible via the command-line interface offered by the SP's computation resources. Some SPs also offer other interfaces to their mass storage systems (e.g., GridFTP, Globus, and similar network interfaces).