Electrical computers and digital processing systems: memory – Storage accessing and control – Control technique
Reexamination Certificate
2007-10-09
2007-10-09
Bragdon, Reginald (Department: 2189)
Electrical computers and digital processing systems: memory
Storage accessing and control
Control technique
C711S159000, C711S162000
Reexamination Certificate
active
11146114
ABSTRACT:
Provided is a computer system capable of maintaining consistency of data stored in logical volumes. The computer system includes: a storage system including a disk controller which controls data read/write in a disk drive; and a host computer which transmits a request to the storage system, wherein the disk controller has a control unit and a storage unit, the disk drive has logical volumes which are data storing areas, the host computer sends a request directed to the logical volume and attribute information of the logical volume, the control unit wherein: executes the received request; the control unit stores, in the storage unit, the received attribute information in association with the logical volume; and decides to execute a following request which is made by the host computer to the logical volume in a case where the request meets the attribute information corresponding to the logical volume and is stored in the storage unit.
REFERENCES:
patent: 6502205 (2002-12-01), Yani et al.
patent: 2003/0051111 (2003-03-01), Nakano et al.
patent: 2003/0101318 (2003-05-01), Kaga et al.
patent: 2002-215462 (2002-08-01), None
patent: 2003-122509 (2003-04-01), None
patent: 2003-162378 (2003-06-01), None
Hiraiwa Yuri
Iwamura Takashige
Maki Nobuhiro
Miyata Katsuhisa
Ninose Kenta
Bragdon Reginald
Dinh Ngoc
Mattingly ,Stanger ,Malur & Brundidge, P.C.
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