Online migration method and device for physical server

The invention provides an online migration method and device for a physical server. The method comprises the steps that 1, obtaining partition information of a magnetic disk, and sending the partition information to another physical server, wherein the partition information is related to partitions of the magnetic disk; 2, sending data stored on the magnetic disk and addresses of the data on the magnetic disk to another physical server; 3, controlling an operation system to enter the dormant state so as to store the internal storage data to the magnetic disk; 4, sending the internal storage data stored on the magnetic disk and the addresses of the internal storage data on the magnetic disk to another physical server, wherein when the physical server executes the steps 1 and 2, the physical server is in the normal operation state all the time. According to the method and device, the service interruption time in the migration process can be effectively shortened. 提供种用于物理服务器的在线迁移的方法及装置。所述方法包括：(A)获取磁盘的分区信息，并将所述分区