A data storage system is coupled to a host computer system for the transfer of data between the host and a plurality of data storage devices. The data storage devices are coupled to a plurality of data transfer channels with each data storage channel be coupled to at least a respective one of the ...http://www.google.ca/patents/US5701516?utm_source=gb-gplus-sharePatent US5701516 - High-performance non-volatile RAM protected write cache accelerator system employing DMA and data transferring scheme 