Emc IP Holding Company LLC

Other

Jimmy Zhang

Yizhou Zhou

Kevin Meagher

Hong Deng

Frank Wan

Sammi Hongying Wang

Embodiments of the present disclosure relate to a method, electronic device and computer readable storage medium for data backup and recovery. The data backup method comprises: receiving data to be backed up and metadata describing the data to be backed up, the data to be backed up comprising a file and a directory, the metadata comprising file data associated with the file and directory data associated with the directory; generating path data associated with both the file and the directory based on the file data and the directory data; and storing the file data, the directory data, and the path data in association with the data to be backed up. Correspondingly, the data recovery method comprises: receiving information about data to be recovered; in response to the information being related to a path, obtaining path data associated with both a file and a directory, the path data being generated based on file data associated with the file and directory data associated with the directory; determining, based on the path data, metadata describing the data to be recovered; obtaining, based on the metadata, the data to be recovered; and transmitting the data to be recovered to implement data recovery. In this way, rapid recovery of the backup data is achieved.

Method, electronic device and computer readable storage medium for data backup and recovery

Embodiments of the present disclosure provide a method and device for file backup and recovery. The method for file backup comprises receiving a file to be backed up and metadata describing an attribute of the file. The method further includes storing the metadata into a cache. The method further includes storing the file into a storage device for data backup. The method further includes receiving, from the storage device, information that indicates a storage position of the file in the storage device. Besides, the method further includes storing the information into the cache at an address that is determined based on the metadata.

Method and device for file backup and recovery

Disclosed is a surface treatment agent for galvanized steel sheets, which comprises epoxy-containing silane derivates, alkyl-containing silane derivates, alkoxy silane derivates and one or more selected from the group consisting of a cationic polymer aqueous dispersion, a non-ionic polymer aqueous dispersion and a water-soluble polymer. Also disclosed is a method for producing it, which comprises mixing each component uniformly for 0.5 to 8 hours at 5 to 70&#xb0; C. Further provided are galvanized steel sheets coated with the surface treatment agent on the surface and a production method thereof. The surface treatment agent for galvanized steel sheets has excellent corrosion resistance, alkali resistance, solvent resistance, recoating property, high temperature resistance and electrical conductivity.

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Chengdu, China

Jimmy Zhang