The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 18, 2020
Filed:
Jan. 11, 2017
Huawei Technologies Co., Ltd., Shenzhen, CN;
HUAWEI TECHNOLOGIES CO., LTD., Shenzhen, CN;
Abstract
A data deduplication method and apparatus are provided. The method includes receiving an overwrite request sent by an external device, where the overwrite request carries a data block and a first address into which the data block is to be stored; determining whether an overwrite quantity of the first address exceeds a first threshold within a time period [t, t], where both tand tare time points, and tis later than t; and when the overwrite quantity of the first address exceeds the first threshold within the time period [t, t], skipping performing a deduplication operation on the data block; or when the overwrite quantity of the first address does not exceed the first threshold within the time period [t, t], performing a deduplication operation on the data block. Therefore, a large quantity of computing resources of a storage server are saved, and impact brought by a deduplication operation on storage server performance is also decreased.