System and method for high speed data storage. An unmounted unformatted direct access storage device (DASD) may be opened via an operation system (OS) application programming interface (API). A maximum amount of storage space afforded by the DASD may be determined, and the DASD locked, thereby limiting write access to the DASD to a first application process and excluding writes to the DASD by any other application process. A single data type data stream is received, and stored on the DASD in linear fashion as it is received without using a file system architecture, metadata, indices, or keys associated with the data, including writing a block of the stream of data to the DASD and returning a next contiguous write location on the DASD in an iterative manner. The stored data are readable by multiple readers in a linear manner without using the file system architecture, metadata, indices, or keys.