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1. (WO2018119601) DATA CONVERSION METHOD AND BACK-UP SERVER

Pub. No.:    WO/2018/119601    International Application No.:    PCT/CN2016/112184
Publication Date: Fri Jul 06 01:59:59 CEST 2018 International Filing Date: Tue Dec 27 00:59:59 CET 2016
IPC: G06F 17/00
Applicants: HUAWEI TECHNOLOGIES CO., LTD.
华为技术有限公司
Inventors: ZHANG, Lei
张磊
FU, Gaoding
伏高顶
Title: DATA CONVERSION METHOD AND BACK-UP SERVER
Abstract:
Provided are a method for realizing data conversion in a cloud data centre and a back-up server, able to shorten, when creating a cloud disk of a virtual machine, a conversion time for a back-up data object, and reduce storage costs in the cloud data centre for a user. The method comprises: a back-up server receiving a read request sent by a block storage server, wherein the read request comprises a URL address, in the back-up server, of a virtual mirror image object to be read and an address range of target data in the virtual mirror image object to be read; according to the URL address, in the back-up server, of the virtual mirror image object to be read, acquiring an address mapping bitmap and a storage path of back-up data in a back-up copy corresponding to the virtual mirror image object to be read, and acquiring, according to the address range of the target data, and the address mapping bitmap and the storage path of the back-up data in the back-up copy, the target data from a storage device; and sending the target data to the block storage server. The present application is applicable to the technical field of storage.