US 6,983,396 B2 | ||
Apparatus for reducing the overhead of cache coherency processing on each primary controller and increasing the overall throughput of the system | ||
William A. Brant, Boulder, Colo. (US); Mohamad H. El-Batal, Westminster, Colo. (US); and Thomas E. Richardson, Golden, Colo. (US) | ||
Assigned to International Business Machines Corporation, Armonk, N.Y. (US) | ||
Filed on Feb. 15, 2002, as Appl. No. 10/77,249. | ||
Prior Publication US 2003/0159082 A1, Aug. 21, 2003 | ||
Int. Cl. G06F 11/00 (2006.01) |
U.S. Cl. 714—6 | 16 Claims |
1. A bridged storage controller, comprising a control unit having 2N ports coupled to 2N disk channels, the 2N disk channels being shared by the bridged storage controller and N host-side controllers to increase system performance, wherein the increase in system performance comprises a reduction in an overhead of cache coherency processing on the N host-side controllers and increases an overall throughput for the system. |