Data access method and storage array
US11301157B2 · kind B2 · utility
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20Claims
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Key dates
| Filing date | Apr 27, 2020 |
| Grant date | Apr 12, 2022 |
| Priority date | — |
| Expiry date | Apr 27, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/0679
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A disk array includes SSD of different page sizes and a virtual disk is constructed based on the SSDs of different page sizes. The constructed virtual disk formed by a hybrid-page chunk which includes a large-page chunk, a small-page chunk, and the small-page chunk, is not provided for the host for use, and is only used to migrate data corresponding to the large-page chunk. Based on the virtual disk formed by the hybrid-page chunk, the data with a large granularity can be stored in the SSD with a large page size, and data with a small granularity is migrated to the SSD with a small page size.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.