HIGH-SPEED, HIGH-CAPACITY, FAULT-TOLERANT, ERROR-CORRECTING STORAGE SYSTEM FOR BINARY COMPUTERS

摘要

the invention provides for the connection of a device to control access to a disk between a central computer unit (10), and a plurality of disk units (16) for a storage system with high speed, large capacity, and is insensitive to fault correction be their operating asynchronously.it also helps to improve the performance compared to previous versions.a number of control channels for the disc drive (46) are connected to the respective channels to drive units and control of data transfer to and from the units disc, each of the control channels of the disc drive includes a cache / buffer (48) and a u the microprocessor unit (50).a control circuit, and the interface unit (42) to interface with the host computer (10) and a central cache (54) is provided.a control logic circuit for controlling the transfer of data cached from the cache / buffer (48) of the plurality of channels (46) in order to drive units to the cache (54) and the cache (54) to the cache memory buffer (48). the plurality of channels (46) in order to drive units to and from the cache (54) to the computer 100"(10) through the control unit (42), and an interface. a central processing unit (60) manages the caching for data transfers to the data is not present in the cache (54) and by sending high level commands to the control channels (46) of the disc drive.a first bus (64) (data) is the interconnection of a plurality of buffer memories (48) antu00e9mu00e9moires / disk units, the control unit (42) and interface.and the cache (54) for the transfer of information between them, and a second bus (52) (information and orders) provides the interconnection between the components and a central processing unit (60) for the transfer of control and