presenting, by a software Redundant Array of Independent Disk (RAID) subsystem to an operating system while in a runtime mode, a primary controller device that is included in a plurality of controller devices connected to the software RAID subsystem as being connected to a logical storage device provided by a plurality of physical storage devices that are coupled to the plurality of controller devices;

providing, by the software RAID subsystem in response to entering a crash dump mode from the runtime mode, a storage driver subsystem for the primary controller device; and

initializing, by the software RAID subsystem using the storage driver subsystem provided for the primary controller device while in the crash dump mode, at least one secondary controller device included in the plurality of controller devices that controls at least one of the plurality of physical storage devices that provides a boot logical storage subsystem in the logical storage device.