In addition, through the case descriptions of foreign hyper-converged vendors such as Nutanix, VMware(vSAN) and SmartX in China, we can see that a large number of products they replaced are the storage products of established storage vendors such as EMC and HDS. Therefore, users who purchase hyper-convergence do not need to change the original server brand (such as Dell) or virtualization brand (such as VMware), but only need to change the storage (such as EMC). So the most important difference is the different storage architecture. Hyperconvergence uses distributed storage, which can well build a scalable and highly reliable storage resource pool based on X86 servers, which is the foundation and core technology of hyper-convergence.