Computer program product, system, and method to allow a host and a storage device to communicate between different fabrics

A system in communication with nodes, comprising:

• a processor;
• and
• a non-transistory computer readable storage media including program code executed by the processor to:
• communicate with an originating node over a first network and communicating with a destination node over a second network;
• receive an origination packet from the originating node over the first network to the destination node having a storage device, wherein the origination packet includes a first fabric layer for transport through the first network, a command in a transport protocol with a storage Input/Output (I/O) request, with respect to the storage device at the destination node, and a host memory address at the originating node;
• determine a transfer memory address of a location in a memory device in a target device to map to the host memory address, wherein the memory device is in the system that is separate from the storage device and wherein the system is in communication with the storage device via the second network;
• construct a destination packet including a second fabric layer for transport through the second network and the command in the transport protocol to send the storage I/O request and the transfer memory address, wherein different first and second fabric protocols are used to communicate on the first and second networks, respectively;
• and
• send the destination packet over the second network to the destination node to perform the storage I/O request with respect to the storage device.

A method for communicating with nodes, comprising:

• communicating with an originating node over a first network and communicating with a destination node over a second network;
• receiving an origination packet from the originating node over the first network to a destination node having a storage device, wherein the origination packet includes a first fabric layer for transport through the first network, a command in a transport protocol with a storage Input/Output (I/O) request, with respect to the storage device at the destination node, and a host memory address;
• determining a transfer memory address of a location in a memory device to map to the host memory address, wherein the memory device is in a system that is separate from the storage device and wherein the system is in communication with the storage device via the second network;
• constructing a destination packet including a second fabric layer for transport through the second network and the command in the transport protocol to send the storage I/O request and the transfer memory address, wherein different first and second fabric protocols are used to communicate on the first and second networks, respectively;
• and
• sending the destination packet over the second network to the destination node to perform the storage I/O request with respect to the storage device.