Electrical computers and digital data processing systems: input/ – Input/output data processing – Input/output access regulation
Reexamination Certificate
2008-07-15
2008-07-15
Shin, Christopher (Department: 2181)
Electrical computers and digital data processing systems: input/
Input/output data processing
Input/output access regulation
C710S074000, C711S114000, C361S600000
Reexamination Certificate
active
07401167
ABSTRACT:
A disk array apparatus of the invention improves the quality of Fiber Channel signals corresponding to mounting positions of disk drives. The disk array apparatus comprises first to fourth groups of a plurality of disk drives each of which stores data; a first data relay device for connecting a first group of a plurality of data transfer paths wired in a direction orthogonally intersecting the row direction and to be connected to the first group of a plurality of disk drives through a first loop-like data transfer path; a second data relay device for connecting a second group of a plurality of data transfer paths wired in a direction orthogonally intersecting the row direction and to be connected to the second group of a plurality of disk drives through a second loop-like data transfer path; a third data relay device for connecting a third group of a plurality of data transfer paths wired in a direction orthogonally intersecting the row direction and to be connected to the third group of a plurality of disk drives through a third loop-like data transfer path; and a fourth data relay device for connecting a fourth group of a plurality of data transfer paths wired in a direction orthogonally intersecting the row direction and to be connected to the fourth group of a plurality of disk drives through a fourth loop-like data transfer path. The first and third relay devices are interposed between the first and third groups of a plurality of disk drives. The second and fourth relay devices are interposed between the second and fourth groups of a plurality of disk drives.
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Matsushige Hiromi
Ogawa Masato
Suzuki Hiroshi
A. Marquez, Esq. Juan Carlos
Fisher Esq. Stanley P.
Hitachi, Ltd..
Reed Smith LLP
Shin Christopher
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