Storage apparatus and data verification method for the same

Details Storage apparatus and data verification method for the same Storage apparatus and data verification method for the same

2008-01-08

2010-12-07

Bragdon, Reginald G (Department: 2189)

Electrical computers and digital processing systems: memory

Storage accessing and control

Specific memory composition

C711S164000, C711S109000, C711SE12001, C717S174000

Reexamination Certificate

active

07849258

ABSTRACT:
A controller unit for the storage apparatus executes the following: giving each data block, which is a data constituent unit, an identification number indicating that the relevant data has been sent from a host computer in response to an arbitrary write request from the host computer; storing, in a memory unit, a storage location in a hard disk drive unit to store the data, as well as the identification number, as an expected value, for the data to be stored in the hard disk drive unit; and in response to a read request from the host computer, comparing the identification number given to each data block, the constituent unit of the data read from the hard disk drive unit, with the expected value of the read data, thereby verifying that the read data is the data written to the hard disk drive in response to the arbitrary write request.

REFERENCES:
patent: 4559568 (1985-12-01), Watanabe et al.
patent: 2004/0210712 (2004-10-01), Katsuragi et al.
patent: 2005/0091540 (2005-04-01), Dick et al.
patent: 2006/0294299 (2006-12-01), Edirisooriya
patent: 2007/0055797 (2007-03-01), Shimozono
patent: 58-125205 (1983-07-01), None
patent: 2004-318485 (2004-11-01), None
patent: 2007-072571 (2007-03-01), None

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