External storage subsystem having independent access paths for p

Details External storage subsystem having independent access paths for p External storage subsystem having independent access paths for p

1997-07-29

1999-09-14

Lee, Thomas C.

Electrical computers and digital data processing systems: input/

Input/output data processing

Input/output access regulation

710 21, 710 52, 710126, 711113, G06F 1340

Patent

active

059516550

ABSTRACT:
A plurality of independent cache units and nonvolatile memory units are provided in a disk controller located between a host (central processing unit) and a magnetic disk drive. A plurality of channel units for controlling the data transfer to and from the central processing unit and a plurality of control units for controlling the data transfer to and from the magnetic disk drive are independently connected to the cache units and the nonvolatile memory units through data buses and access lines.

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