Database with NVDIMM as persistent storage
US10802766B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 29, 2017 |
| Grant date | Oct 13, 2020 |
| Priority date | — |
| Expiry date | Apr 12, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F16/90339
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A shared storage architecture persistently stores database files in non-volatile random access memories (NVRAMs) of computing nodes of a multi-node DBMS. The computing nodes of the multi-node DBMS not only collectively store database data on NVRAMs of the computing nodes, but also host database server instances that process queries in parallel, host database sessions and database processes, and together manage access to a database stored on the NVRAMs of the computing nodes. To perform a data block read operation from persistent storage, a data block may be transferred directly over a network between NVRAM of a computing node that persistently stores the data block to a database buffer in non-volatile RAM of another computing node that requests the data block. The transfer is accomplished using remote direct memory access (“RDMA).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.