Method, system, and computer-readable recording medium for automated storage tiering
US10055140B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 22, 2016 |
| Grant date | Aug 21, 2018 |
| Priority date | — |
| Expiry date | Nov 16, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/0685
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method, a system, and a computer-readable recording medium for automated storage tiering are provided. A temperature level of each data block in all data storage devices with different tier levels is calculated based on its usage level and usage history so as to accordingly calculate a total amount of preserved storage space for all the data storage devices. Next, a storage space of each of the data storage devices is divided into a preserved storage space and a non-preserved storage space according to the total amount of the preserved storage space and a storage capacity of the corresponding data storage device. Each of the data blocks is migrated to the non-preserved storage space in the corresponding data storage device according to its temperature and the tier level of each of the data storage devices.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.