Slater Matsil, LLP
System and method for efficient cross-controller request handling in active/active storage systems
A system and method for cross-controller data storage operations comprises interconnecting a responding storage controller and an owning storage controller with a direct memory access (DMA) capable fabric, the responding storage controller and the owning storage controller each comprising an interface from a data bus connected to the DMA capable fabric, configuring and implementing a shared DMA address space in accordance with the DMA capable fabric, the shared DMA address space including memory on the responding storage controller and the owning storage controller, the shared DMA address space being one of a symmetric or asymmetric address space, and exposing one or more local buffers of the responding storage controller and one or more local buffers of the owning storage controller through the shared DMA address space.
Futurewei Technologies, Inc.
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Can Jinshui Wei Mark
Chen Liu Zhang Kampe