Storing data in a log-structured format in a two-tier storage system
US11803469B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 24, 2021 |
| Grant date | Oct 31, 2023 |
| Priority date | — |
| Expiry date | Aug 24, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2212/657
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The disclosure herein describes storing data using a capacity data storage tier and a smaller performance data storage tier. The capacity data storage tier includes capacity data storage hardware configured to store log-structured leaf pages (LLPs), and the performance data storage tier includes performance data storage hardware. A virtual address table (VAT) includes a set of virtual address entries referencing the LLPs. A tree-structured index includes index nodes referencing the set of virtual address entries of the VAT. Data to be stored is received, and at least a first portion of metadata associated with the received data is stored in the LLPs using the VAT, and at least a second portion of metadata associated with the received data is stored in the performance data storage tier. The architecture reduces space usage of the performance data storage tier.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.