The embodiment of the present application provides a method for data conversion in a cloud data center and a backup server, which can shorten the conversion time of backup data objects and reduce the storage cost of users in a cloud data center when creating a cloud disk of a virtual machine. The method includes: the backup server receives the read request sent by the block storage server, and the read request includes the URL address of the virtual image object to be read in the backup server and the address range of the target data in the virtual image object to be read; and obtains the read request according to the URL address of the virtual image object to be read in the backup server The address map bitmap and storage path of the backup data in the backup copy corresponding to the virtual mirror object to be read retrieve the target data from the storage device according to the address range of the target data, the address map bitmap and storage path of the backup data in the backup copy, and send the target data to the block storage server. This application is applicable to the field of storage technology.
【技术实现步骤摘要】
【国外来华专利技术】PCT国内申请，说明书已公开。
【技术保护点】
PCT国内申请，权利要求书已公开。
【技术特征摘要】
【国外来华专利技术】PCT国内申请，...
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