Storage system
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Accused Products
Abstract
A storage system is comprised of an interface unit 10 which has an interface with a server 3 or hard drives 2, a memory unit 21 which has a cache memory module 126 for storing data to be read from/written to the server 3 or the hard drives 2 and a control information memory module 127 for storing control information of the system, a processor unit 81 which has a microprocessor for controlling the read/write of data between the server 3 and the hard drives 2, and an interconnection 31, wherein the interface unit 10, memory unit 21 and processor unit 81 are interconnected with the interconnection 31.
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Citations
60 Claims
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1-20. -20. (canceled)
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21. A storage device comprising:
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an interface unit for connecting an external device;
a memory unit for storing data received at said interface unit;
a processor unit that controls the storing of data received at said interface unit to said memory unit; and
plural disk units that the data stored in said memory unit is stored in by said processor unit;
wherein said interface unit, said memory unit, and said processor unit are connected by a first backplane, said first backplane has plural first connectors for changing the number of said processor units, and said plural disk units are connected by a second backplane. - View Dependent Claims (22, 23, 24, 25, 26, 28, 41, 42, 43, 44, 45, 46)
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27. A storage device comprising:
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an interface unit for connecting an external device;
a memory unit for storing data received at said interface unit;
a processor unit that controls the storing of data received at said interface unit to said memory unit; and
plural disk units that the data stored in said memory unit is stored in said processor unit;
wherein said interface unit, said memory unit, and said processor unit are connected by a first backplane, said first backplane has plural first connectors for changing said interface unit, and said plural disk units are connected by a second backplane. - View Dependent Claims (29, 30, 31, 32, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56)
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33. A storage device comprising:
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an interface unit connected to external device, and that receives data sent from said external device;
a memory unit that stores data received at said interface unit;
plural disk units that the data stored in said memory unit is stored in said processor unit; and
a processor unit that stores data received at said interface unit to said memory unit, or controls the storing of data stored in said memory unit to said plural disk units;
wherein it is possible to change the number of said processor unit in case that said interface unit is not increased or decreased. - View Dependent Claims (34, 35, 36)
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37. A storage device comprising:
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an interface unit for connecting an external device;
a memory unit for storing data received at said interface unit;
a processor unit that controls the storing of data received at said interface unit to said memory unit; and
plural disk units that the data stored in said memory unit is stored in said processor unit;
wherein said interface unit, said memory unit, said processor unit and said disk unit are each mounted on a first board, a second board, a third board, and a fourth board respectively; and
said first board, said second board, and said third board are connected by a first backplane; and
said fourth board are connected by a second backplane. - View Dependent Claims (38, 39, 40, 57, 58, 59, 60)
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Specification
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Current AssigneeHitachi, Ltd.
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Original AssigneeHitachi, Ltd.
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InventorsInoue, Yasuo, Watanabe, Naoki, Fujimoto, Kazuhisa, Hosoya, Mutsumi, Shimada, Kentaro
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Application NumberUS11/031,556Publication NumberTime in Patent OfficeDaysField of SearchUS Class Current711/112CPC Class CodesG06F 13/4022 using switching circuits, e...
