If consecutive read or write requests imposed on a DASD are of the same type and bear a defined sequential logical address relationship (pure sequential, near sequential), then a circular buffered data path using a pair of a synchronously managed read/write ports respectively coupling either a cyclic,...http://www.google.de/patents/US6038619?utm_source=gb-gplus-sharePatent US6038619 - Disk drive initiated data transfers responsive to sequential or near sequential read or write requests
