Storage system, memory management method, and management node
US12216929B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 3, 2023 |
| Grant date | Feb 4, 2025 |
| Priority date | — |
| Expiry date | Dec 3, 2043 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02D10/00
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A storage system includes multiple storage nodes. Each storage node includes a first storage device of a first type and a second storage device of a second type, and a performance level of the first storage device is higher than the second storage device. The globe cache includes a first tier comprising the first storage device in each storage node, and a second tier comprising the second storage device in each storage node. The first tier is for storing data with a high access frequency, and the second tier is for storing data with a low access frequency. The management node monitors an access frequency of target data stored in the first tier. When the access frequency of the target data is lower than a threshold, the management node instructs the first storage node to migrate the target data from the first tier to the second tier.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.