Index storage in shingled magnetic recording (SMR) storage system with non-shingled region
US11853549B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 26, 2020 |
| Grant date | Dec 26, 2023 |
| Priority date | — |
| Expiry date | Jan 16, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2020/1238
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The present application provides a data storage method, a data storage apparatus and a storage system, wherein the method includes: determining a data type of to-be-stored data when the to-be-stored data is obtained (S410); determining a target storage area with a data type same as that of the to-be-stored data based on the data type of data stored in each storage area in the SMR disk (S420); determining in the target storage area a target storage block into which the to-be-stored data is to be written (S430); generating the main index information and backup index information of the to-be-stored data based on the identifier of the target storage block (S440); generating the database index information of the to-be-stored data based on the to-be-stored data and the identifier of the target storage block (S450); and writing the to-be-stored data and the backup index information of the to-be-stored data into the target storage block, writing the main index information of the to-be-stored data into the CMR area or the non-SMR disk, and writing the database index information of the to-be-stored data into the non-SMR.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.