Patent ID: 9354992
Filing Date: 2016-05-31
CPC Classification: G06F

Claim Text:
1. A method, comprising: identifying a failover trigger associated with a first interconnect path between a first storage controller and a second storage controller; sending a fence instruction to the second storage controller over a second interconnect path, the fence instruction instructing the second storage controller to fence I/O operations from the first interconnect path; and responsive to receiving a fence acknowledgement message from the second storage controller, performing interconnect failover for the first interconnect path utilizing the second interconnect path to transmit storage information from the first storage controller to the second storage controller, the first interconnect path and the second interconnect path corresponding to remote direct memory access (RDMA) streams between a first nonvolatile memory of the first storage controller and a second nonvolatile memory of the second storage controller for data mirroring of storage information.