The SNIA Common RAID Disk Data Format defines a standard data structure describing how data is formatted across disks in a RAID group. The DDF structure allows a basic level of interoperability between different suppliers of RAID technology. The Common RAID DDF structure benefits storage users by enabling data-in-place migration among systems from different vendors. Storage Networking Industry Association (SNIA) was incorporated in December 1997 and is a registered 501-C6 non-profit trade association. ... In computing, RAID (a redundant array of inexpensive disks, also later known as redundant array of independent disks) is a system which uses multiple hard drives to share or replicate data among the drives. ... Interoperability is the ability of products, systems, or business processes to work together to accomplish a common task. ... In computing, a redundant array of inexpensive disks, also later known as redundant array of independent disks (commonly abbreviated RAID) is a system which uses multiple hard drives to share or replicate data among the drives. ...