Huawei Dorado all-flash storage offers high flexibility and can meet our diverse needs on a single device. It supports both SAN and NAS configurations and can also be used for our backup systems, providing us with a variety of options. In addition, the Huawei team conducted a performance analysis of our existing equipment and provided some key recommendations. For example, HDDs have higher failture rates and lower performance compared to SSDs, and utilization rate of some mid-range devices has already reached its maximum capacity, which clearly does not match the requirements of our bank's digital transformation.Based on this, Huawei proposed a unified consolidation solution.First, we upgraded to all-SSD storage.This not only doubled the performance but also improved operational efficiency by three times after consolidation.Second, we upgraded mid-range devices to high-end ones.The upgrade in hardware specifications,such as controllers,significantly enhanced system reliability, achieving 99.99999% reliability, which means that the system downtime is less than 3 seconds per year. In addition, the Huawei team also developed a good plan for reusing our old equipment.Third, we implemented SAN ransomware protection. The new version provides SAN ransomware protection capabilities, with a detection rate of 99.99%, which greatly enhances the security of our banking system.Therefore, we decided to migrate our existing storage system to Huawei Dorado all-flash high-end storage.