| 摘要 |
<p>The present invention implements a data storage system that can be coupled to a host computer system (32) for the transfer of data between the host (32) and a plurality of data storage (34, 40 and 42) devices. The data storage devices (34, 40 and 42) are coupled to a plurality of data transfer channels (86) with each data storage channel being coupled to at least a respective one of the data storage devices (34, 40 and 42). Each data transfer channel (86) includes a data buffer (85) and an autonomously operating controller (38) for transferring data between the channels (86) data buffer (85) and data storage device (34, 40 and 42). A non-volatile random access storage memory (42) is provided to store cached pages of data. An interface (100) couples the data storage system to the host and through which data is transferred. A reconfigurable data path (80) permits selective data transfer couplings between the data transfer channels, the non-volatile memory (42), and the interface (100). A controller (76) directs the configuration of the data path (80) and controls a direct memory access controller (114) for burst transferring data between the interface (100) and the channel data buffers (85), between interface and the non-volatile memory (42) and between the non-volatile memory (42) and the channel data buffers (85).</p> |
