Abstract: An interface receives a command corresponding to a non-volatile memory. The interface determines whether a bypass mode is enabled and whether the command is a medium-access command. A primary processing node processes the command in response to determining at least one of the following: that the bypass mode is disabled or that the command is not a medium-access command. A secondary processing node processes the command, in response to determining that the bypass mode is enabled and that the command is a medium-access command.

Abstract: To emulate a hardware component of a target hardware system including a plurality of hardware components, a component model of the hardware component is built, where the component model includes a register interface through which a host application provides inputs to and reads outputs from the component model, one or more parameter registers that hold values of state variables of the component model, and a state machine that models behavior of the hardware component without explicitly emulating logic implemented in the hardware component. During modeling of the hardware component utilizing the component model the component model is dynamically modified other than by modifying values of the state variables.

Abstract: In a data storage system, a hierarchical data structure, such as a file system or a database, is utilized to organize a hierarchical arrangement of device containers corresponding to various device identifiers of the plurality of hardware components in the target hardware system, scripts corresponding to various packet types of communication packets in the target hardware system, and responses corresponding to various packet data in the communication packets in the target hardware system. In response to receipt by a hierarchical emulation engine of a communication packet during emulation of the target hardware system, the communication packet including a device identifier, packet type and packet data, a response to the communication packet is determined by traversing the hierarchical arrangement based on the device identifier, packet type and packet data of the communication packet. The determined response is then provided.