Software raid multipath plugin/driver communication system

An Information Handling System (IHS), comprising:

• a processing system;
• and
• a memory system that is coupled to the processing system and that includes instructions that, when executed by the processing system, cause the processing system to provide an operating system engine that includes:
• a software Redundant Array of Independent Disks (RAID) multipath plugin sub-engine is configured to:
• receive data-storage-related commands that are related to storage of data in a software RAID logical storage system that is provided by a plurality of physical storage devices and for which a software RAID driver sub-engine included in the operating system engine presents:
• an active path to a primary controller for the software RAID logical storage system that is provided by a first physical storage device included in the plurality of physical storage devices;
• and
• a failover path to a secondary controller for the software RAID logical storage system that is provided by a second physical storage device included in the plurality of physical storage devices;
• transmit the data-storage-related commands via the active path to the software RAID driver subsystem in response to receiving the data-storage-related commands;
• configure a buffer memory subsystem to receive software RAID data that is unrelated to the storage of data in the software RAID logical storage system;
• generate a software RAID data command that requests the software RAID data from the software RAID driver sub-engine;
• transmit the software RAID data command via the failover path to the software RAID driver sub-engine while the active path to the software RAID driver subsystem is being used to transmit at least one of the data-storage-related commands;
• initiate a software RAID data command timer in response to transmitting the software RAID data command;
• and
• retrieve the software RAID data from the buffer memory subsystem in response to completion of the software RAID data command timer.

A method for communicating between a software Redundant Array of Independent Disks (RAID) multipath plugin and a software RAID driver in a software Redundant Array of Independent Disks (RAID), comprising:

• receiving, by a software Redundant Array of Independent Disks (RAID) multipath plugin subsystem included in an operating system, data-storage-related commands that are related to storage of data in a software RAID logical storage system that is provided by a plurality of physical storage devices and for which a software RAID driver sub-engine included in the operating system engine presents:
• an active path to a primary controller for the software RAID logical storage system that is provided by a first physical storage device included in the plurality of physical storage devices;
• and
• a failover path to a secondary controller for the software RAID logical storage system that is provided by a second physical storage device included in the plurality of physical storage devices;
• transmitting, by the software RAID multipath plugin subsystem, the data-storage-related commands via the active path to the software RAID driver subsystem in response to receiving the data-storage-related commands;
• configuring, by the software RAID multipath plugin subsystem, a buffer memory subsystem to receive software RAID data that is unrelated to the storage of data in the software RAID logical storage system;
• generating, by the software RAID multipath plugin subsystem, a software RAID data command that requests the software RAID data from the software RAID driver subsystem;
• transmitting, by the software RAID multipath plugin subsystem, the software RAID data command via the failover path to the software RAID driver subsystem while the active path to the software RAID driver subsystem is being used to transmit at least one of the data-storage-related commands;
• initiating, by the software RAID multipath plugin subsystem, a software RAID data command timer in response to transmitting the software RAID data command;
• and
• retrieving, by the software RAID multipath plugin subsystem, the software RAID data from the buffer memory subsystem in response to completion of the software RAID data command timer.