High performance clusters are applied to the study of nuclear fusion. On one hand, the simulation of particles movement in the Tokamak is rely on high performance clusters heavily. On the other hand, valuable discharge data have been storaged for further researches. Keda Torus eXperiment reversed field pinch (KTX) device which is situated in University of Science and Technology of China works well, and the KTX laboratory highly demands for high performance computing and experimental data storage. Therefore, a high performance cluster is deployed and a security design for storage is proposed. Based on IOzone tests, the redundancy mechanism of the GPFS file system works, and the data read and write performance is stable.