Controller data sharing using a modular DMA architecture

摘要: A network storage controller for transferring data between a host computer and device, such as redundant array of inexpensive disks (RAID), is disclosed. The includes at least one channel interface module which adapted to be connected the device. passive backplane, selectively transfers device backplane. also memory module, attached communicates with via processes temporarily stores received from or In applications where redundancy required, two modules are used. may mirror another using backplane shared communication path on modules, thereby substantially avoiding use disk channels data. operable connect more modules. include DMA engine facilitate transfer mirrored