Method, apparatus, and system for calculating identification threshold to distinguish cold data and hot data
US10031671B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 3, 2016 |
| Grant date | Jul 24, 2018 |
| Priority date | — |
| Expiry date | Sep 14, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/0685
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.