Patent ID: 8073675
Filing Date: 2011-12-06
Classification: G06F

Abstract:
1. A method of interfacing a RAID storage device controller to a PCI bus host without modifying existing host driver software, the method comprising the steps of: in the RAID controller, implementing a host interface for logical connection to the PCI bus host, the host interface emulating an ATA controller; in the RAID controller, emulating an IDE storage device as though it were connected to the emulated ATA controller, thereby forming a first logical IDE storage device interface; providing at least one physical port interface in the RAID controller for attaching a plurality of physical storage devices to the controller; and de-coupling the controller's host interface from the attached physical storage devices so that the RAID controller interacts with the host driver software as an IDE device connected via an ATA interface, regardless of the actual number and interface types of physical storage devices actually attached to the physical port interfaces of the RAID controller.