Electrical computers and digital processing systems: memory – Storage accessing and control – Specific memory composition
Reexamination Certificate
2005-08-31
2009-02-03
Elmore, Reba I (Department: 2189)
Electrical computers and digital processing systems: memory
Storage accessing and control
Specific memory composition
C711S162000
Reexamination Certificate
active
07487292
ABSTRACT:
A magnetic disk apparatus capable of effectively achieving speedup of the response to a read request, a control method and control program therefore are provided. In a control of a magnetic disk apparatus having a RAID configuration in which the same data is written on two disks, a given algorithm is selected from a plurality of different algorithms with respect to the data stored in the disks, read commands are issued to the data stored in the two disks, respectively, according to the selected algorithm and the data that has been read first by the read commands that has been issued to the two disks in a read command issuance step is adopted as read data.
REFERENCES:
patent: 6832330 (2004-12-01), Boudrie et al.
patent: 6834326 (2004-12-01), Wang et al.
patent: 6924780 (2005-08-01), Horst et al.
patent: 2005/0166085 (2005-07-01), Thompson et al.
patent: 2006/0155944 (2006-07-01), Kano
patent: 2006/0174156 (2006-08-01), Balasubramanian
patent: 2006/0190682 (2006-08-01), Noguchi et al.
patent: 2007/0192557 (2007-08-01), Kezuka et al.
patent: 04-205518 (1992-07-01), None
patent: 2004-126850 (2004-04-01), None
Daikokuya Hidejirou
Ikeuchi Kazuhiko
Ito Mikio
Konta Yoshihito
Kubota Norihide
Elmore Reba I
Fujitsu Limited
Staas & Halsey , LLP
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