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1. (WO2017067297) METHOD AND DEVICE FOR READING AND WRITING VIDEO DATA IN NAS DEVICE

Pub. No.:    WO/2017/067297    International Application No.:    PCT/CN2016/094403
Publication Date: Fri Apr 28 01:59:59 CEST 2017 International Filing Date: Thu Aug 11 01:59:59 CEST 2016
IPC: G06F 17/30
G06F 3/06
Applicants: HANGZHOU HIKVISION DIGITAL TECHNOLOGY CO., LTD.
杭州海康威视数字技术股份有限公司
Inventors: CAO, Li
曹力
WANG, Weichun
汪渭春
Title: METHOD AND DEVICE FOR READING AND WRITING VIDEO DATA IN NAS DEVICE
Abstract:
The embodiments of the present invention provide a method and a device for reading and writing video data in a NAS device. The method comprises the following steps: mounting a NAS device on a block interface of a storage server, wherein the NAS device includes a plurality of data files; an index server stores the correspondence relationship between the file names of the data files in the NAS device and a disk block number of a block device; and the invention receives a read request or a write request sent by a client device, determines the file names of the data files to be read or written, and reads and writes the data files corresponding to the file names determined by the NAS device. The invention transfers the read and write operations of the block device into the read and write operations of NAS device data files, so that the video cloud storage system supports the NAS device.