Direct response to IO request in storage system having an intermediary target apparatus

A method comprising:

• obtaining an input-output request issued by an application executing on a compute node via at least one network;
• identifying a storage node as corresponding to the obtained input-output request based at least in part on the obtained input-output request;
• retrieving information including an indication of a separate portion of the compute node than a portion of the compute node from which the input-output request is obtained;
• associating the information with the input-output request;
• and
• submitting the input-output request and the associated information to a target node for delivery by the target node to the storage node via the at least one network, wherein the storage node is configured to submit a response to the input-output request to the compute node via the at least one network using the separate portion of the compute node instead of the portion of the compute node from which the input-output request is obtained, based at least in part on the information, wherein the response submitted by the storage node to the compute node bypasses the target node;
• wherein the information is provided separately from the input-output request;
• wherein the compute node is configured to receive the response to the input-output request on the separate portion of the compute node;
• and
• wherein the method is implemented by at least one processing device of an apparatus, the at least one processing device comprising a processor coupled to memory.

An apparatus comprising:

• a storage node comprising at least one processing device comprising a processor coupled to memory and a plurality of storage devices, the storage node being configured:
• to obtain, from a target node via at least one network, an input-output request associated with an application executing on a compute node and information including an indication of a separate portion of the compute node than a portion of the compute node from which the input-output request is obtained by the target node, the target node being configured to identify the storage node as corresponding to the input-output request based at least in part on the input-output request;
• and
• to submit a response to the input-output request to the compute node via the at least one network using the separate portion of the compute node instead of the portion of the compute node from which the input-output request is obtained, based at least in part on the information that was obtained from the target node, wherein the response submitted by the storage node to the compute node bypasses the target node;
• wherein the information is provided separately from the input-output request;
• and
• wherein the compute node is configured to receive the response to the input-output request on the separate portion of the compute node.