Highly reliable disk controller

Details Highly reliable disk controller Highly reliable disk controller

2006-11-17

2009-12-29

Kindred, Alford W (Department: 2181)

Electrical computers and digital data processing systems: input/

Input/output data processing

Input/output command process

C710S028000, C710S036000

Reexamination Certificate

active

07640365

ABSTRACT:
Provided is a unit for protecting data with respect to data transfer between memories of a disk controller. The disk controller for controlling data transfer between a host computer and a disk drive includes: a channel unit having a channel memory; a cache unit having a cache memory, and a control unit for controlling the data transfer. The data transferred to/from the host computer is transferred in a packet between the channel memory and the cache memory, and The control unit for verifying consistency of information included in a header of the packet to be transferred to decide whether transfer can be permitted when the packet is transferred.

REFERENCES:
patent: 5841769 (1998-11-01), Okanoue et al.
patent: 7127568 (2006-10-01), Watanabe et al.
patent: 7496718 (2009-02-01), Ohno et al.
patent: 2004/0139365 (2004-07-01), Hosoya
patent: 2005/0182864 (2005-08-01), Hosoya et al.
patent: 2006/0075187 (2006-04-01), Nakashima et al.
patent: 2003-242030 (2003-08-01), None
patent: 2004-213125 (2004-07-01), None
patent: 2005-228245 (2005-08-01), None
patent: 2005-250551 (2005-09-01), None
Japan Patent Office (JPO) office action for JPO patent application JP2006-260494 (Nov. 11, 2008).

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