A method for writing data to submission queues in a storage controller including receiving an input/output (I/O) request from a client application, where the client application is associated with a virtual port and where the virtual port is associated with a physical port. The method further includes determining a size of the I/O request, identifying a queue group based on the size of the I/O request and the virtual port, where the queue group includes submission queues and is associated with the virtual port. The method further includes identifying a submission queue, sending the I/O request to a storage controller over the physical port, where the queue group is located in memory operatively connected to the storage controller and where the storage controller is configured to place the I/O request in the submission queue.