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:
Jul. 24, 2018
Filed:
Jun. 03, 2016
Huawei Technologies Co., Ltd., Shenzhen, CN;
Huawei Technologies Co., Ltd., Shenzhen, CN;
Abstract
A method, an apparatus, and a system for calculating a identification threshold to distinguish cold data and hot data. The method includes: obtaining, according to a total capacity of hot data storage mediums, a size of data blocks, and the IO count statistical values on all the storage nodes and when the hot data storage mediums are filled with the data blocks corresponding to large IO count statistical values, a minimum IO count value in a count range corresponding to a minimum IO count statistical value in the large IO count statistical value, and using the minimum IO count value as a identification threshold to distinguish cold data and hot data. In the present invention, all storage nodes in a storage system, independently but cooperatively, implement hierarchical data storage in the entire storage system.