公开(公告)号：US06701402B1

公开(公告)日：2004-03-02

申请号：US09820727

申请日：2001-03-30

申请人： Walter W. Alexander, III ,  Wesley H. Stelter ,  Robert G. Campbell

发明人： Walter W. Alexander, III ,  Wesley H. Stelter ,  Robert G. Campbell

IPC分类号： G06F1314

CPC分类号： G06F3/0626 ,  G06F3/0658 ,  G06F3/0689

摘要： The present invention includes an integrated circuit that is operable to connect a redundant array of inexpensive disks (RAID) or other peripheral device to a disk controller, such as a small computer system interface (SCSI) controller in a host device. The integrated circuit provides the peripheral device with sole access to the disk controller when operating in a straight mode. In straight mode, the peripheral device may communicate with the disk controller through a PCI bus to perform operations, such as retrieving or writing data to the peripheral device. Also, when in straight mode, other controllers, including the host's CPU, may be prevented from using the disk controller to avoid data collisions, data loss and possible system failure. The integrated circuit may also function in standard mode, such that other controllers connected to the host may access the disk controller.

摘要翻译： 本发明包括集成电路，其可操作以将廉价磁盘（RAID）或其他外围设备的冗余阵列连接到诸如主机设备中的小型计算机系统接口（SCSI）控制器的磁盘控制器。 集成电路使得外围设备在以直线模式操作时能够唯一地访问磁盘控制器。 在直模式中，外围设备可以通过PCI总线与盘控制器进行通信，以执行操作，例如将数据检索或写入外围设备。 另外，当处于直接模式时，可能会阻止包括主机CPU在内的其他控制器使用磁盘控制器来避免数据冲突，数据丢失和可能的系统故障。 集成电路还可以在标准模式下工作，使得连接到主机的其他控制器可以访问磁盘控制器。