Network system, network node and communication method

A communication method of using a network system to execute I/O commands and application commands in parallel, the network system comprising a network and at least one network node, the at least one network node including a processor and memory,

• wherein the at least one network node is connected to the network via a network adapter and is configured to run several processes and/or threads in parallel,
• wherein the at least one network node establishes, in the memory, a common communication channel (C-channel) to be used by the several processes and/or threads for data communication with the network via the network adapter,
• wherein the C-channel comprises a work queue (WQ) for execution of I/O commands and a completion queue (CQ) for indication of a status of I/O commands, and
• wherein the at least one network node is to assign exclusive access of precisely one single process or thread out of the several processes and/or threads to the CQ of the C-channel at a particular time, the method comprising:
• providing the network system being configured to execute I/O commands and application commands in parallel, and in which the at least one network node of this network system is connected to the network of the network system via the network adapter of the network system and is confi gured to am several processes and/or threads in parallel;
• and
• providing the at least one network node being configured to establish a common communication channel (C-channel) to be used by the several processes and/or threads for data with the network via the network adapter in such a manner that the C-channel comprises a work queue (WQ) for execution of I/O commands and a completion queue (CQ) for indication of a status of I/O commands, in that the at least one network node, in the established C-channel, is configured for an exclusive access of precisely one single process or thread out of the several processes and/or threads to the CQ of the C-channel at a particular time, and in that the C-channel is used by the several processes and/or threads for data communication with the network via the network adapter,
• wherein the network system includes several network nodes which are connected, in the network system, by network paths with each other and which are configured in conformity with the at least one network node, and wherein at least one of the several network nodes is configured to run a daemon process which is configured to allow the at least one of the several network nodes to get access to the C-channel of another one of the several network nodes.