Parallel File System-surpported Server Virtual Environment in Data Center

Server virtualization is the key technology for data center. It can be used to integrate servers, reduce hardware cost, reduce space and power consumption in data center. Dynamic migration is an important feature of server virtualization technology that makes it possible for a virtual server to migrate from one PC to another at run-time. By using dynamic migration, service interruptions caused by PC servers´ hardware maintenance in plan can be avoided. At present, in most server virtualization products, dynamic migration requires shared storage. As the number of virtual servers increases, the performance of shared storage becomes the bottleneck of the virtual disks´ performance. Therefore, it is of great significance to build a unified namespace parallel file system as the shared storage for server virtualization. In this paper, the Large-scale deployment of KVM-based server virtualization and the implementation of using parallel file system in server virtualization are discussed.