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Based on the Redundant Array of Inexpensive Disks (RAID), and Logical Volume Management (LVM) tools, a rack mount server and five connected disk arrays are combined into a single logical disk with massive storage space of up to 90 TB. This program focuses on the stability of the system and the data security on the disk array series, increases the scalability, and theoretically can expand indefinitely. Practical application shows that this program facilitates the security and fast access of the data used operationally in numerical weather prediction, and has a capacity of scalability, so to meet the scientific data storage requirements of meteorological departments at the provincial level, especially the needs of numerical prediction verification for mass storage.