A high-performance RAID system for a PC comprises a controller card which controls an array of ATA disk drives. The controller card includes an array of automated disk drive controllers, each of which controls one respective disk drive. The disk drive controllers are connected to a microcontroller by...http://www.google.de/patents/US6301625?utm_source=gb-gplus-sharePatent US6301625 - System and method for processing and tracking the completion of I/O requests in a disk array system