Diskeeper Server (v. 15) - maintenance (2 years) - 1 license

The Diskeeper 15 Server expands its fragmentation prevention technology beyond Windows physical servers with local storage and direct-attached storage (DAS) to now include storage area networks (SAN), representing the industry's first real-time fragmentation solution for SAN storage. Diskeeper Server doesn't "defrag" SAN systems or compete with RAID controllers for block management, but rather prevents fragmentation from occurring at the logical disk software layer in the Windows file system to keep physical servers and SAN storage running like new.