Systems, methods and devices for RDMA read/write operations

A non-transitory machine readable medium having stored thereon instructions for performing a method comprising machine executable code which, when executed by at least one machine, causes the machines to:

• receive a remote direct memory access RDMA request by a remote node, from a local node, via an interconnect connecting the local node and the remote node;
• wherein the request is generated by a client device for a data file stored by the remote nod, the request including a path for the data file, and source and destination information with a steering tag created by a client network interface card (NIC);
• wherein the client device is connected by a network connection to the local node and the remote node;
• and
• perform an RDMA operation for the data file by a remote node NIC of the remote node, without using a remote CPU, and without routing the data file using the interconnect;
• wherein for a read request, the remote node NIC retrieves requested data from a remote node memory and provides the requested directly to the client NIC without using the local node and the remote CPU, and for a write request, data for the data file is received by the remote NIC directly from the client NIC, and written to the remote node memory without using the local node and the remote CPU.

A system comprising:

• a memory containing machine readable medium comprising machine executable code having stored thereon instructions;
• and a processor configured to execute the machine executable code to:
• receive a remote direct memory access RDMA request by a remote node, from a local node, via an interconnect connecting the local node and the remote node;
• wherein the request is generated by a client device for a data file stored by the remote node, the request including a path for the data file, and source and destination information with a steering tag created by a client network interface card (NIC);
• wherein the client device is connected by a network connection to the local node and the remote node;
• and
• perform an RDMA operation for the data file by a remote node NIC of the remote node, without using a remote CPU, and without routing the data file using the interconnect;
• wherein for a read request, the remote node NIC retrieves requested data from a remote node memory and provides the requested directly to the client NIC without using the local node and the remote CPU, and for a write request, data for the data file is received by the remote NIC directly from the client NIC, and written to the remote node memory without using the local node and the remote CPU.