RDMA-SSD dual-port unified memory and network controller
US10453530B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 10, 2015 |
| Grant date | Oct 22, 2019 |
| Priority date | — |
| Expiry date | Apr 19, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C13/0002
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
System and method for a unified memory and network controller for an all-flash array (AFA) storage blade in a distributed flash storage clusters over a fabric network. The unified memory and network controller has 3-way control functions including unified memory buses to cache memories and DDR4-AFA controllers, a dual-port PCIE interconnection to two host processors of gateway clusters, and four switch fabric ports for interconnections with peer controllers (e.g., AFA blades and/or chassis) in the distributed flash storage network. The AFA storage blade includes dynamic random-access memory (DRAM) and magnetoresistive random-access memory (MRAM) configured as data read/write cache buffers, and flash memory DIMM devices as primary storage. Remote data memory access (RDMA) for clients via the data caching buffers is enabled and controlled by the host processor interconnection(s), the switch fabric ports, and a unified memory bus from the unified controller to the data buffer and the flash SSDs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.