Disk array system and method for controlling disk array system
First Claim
1. A disk array system comprising:
- a first controller coupled to a host computer and controlling to transfer/receive data to/from said host computer and controlling to read/write data;
a second controller coupled to said host computer and/or another host computer and controlling to transfer/receive data to/from said host computer and/or said another host computer and controlling to read/write data;
a plurality of first disk drive units each comprising a converter and a first disk drive, said converter converting between a Fibre Channel (FC) protocol and a Serial ATA (SATA) protocol, said first disk drive comprising a SATA interface and storing data converted to said SATA protocol by said converter; and
a first expansion housing comprising said first disk drive units;
wherein each of said first disk drive units is coupled to both said first controller and said second controller.
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Accused Products
Abstract
A disk array system having first and second housings and a controller for controlling the first and second housings. Fiber channel hard disk drives are received in the first housing, and serial ATA hard disk drives are received in the second housing. When reading data stored in a serial ATA hard disk drive in the second housing, the controller reads a plurality of pieces of data including the data to be read and parity data for the plurality of pieces of data from all the hard disk drives of an RAID group to which the hard disk drive storing the data to be read belongs. Thus, the controller examines whether the plurality of pieces of data including the data to be read are written in the hard disk drives with erroneous contents or not.
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Citations
48 Claims
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1. A disk array system comprising:
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a first controller coupled to a host computer and controlling to transfer/receive data to/from said host computer and controlling to read/write data; a second controller coupled to said host computer and/or another host computer and controlling to transfer/receive data to/from said host computer and/or said another host computer and controlling to read/write data; a plurality of first disk drive units each comprising a converter and a first disk drive, said converter converting between a Fibre Channel (FC) protocol and a Serial ATA (SATA) protocol, said first disk drive comprising a SATA interface and storing data converted to said SATA protocol by said converter; and a first expansion housing comprising said first disk drive units; wherein each of said first disk drive units is coupled to both said first controller and said second controller. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A disk array system comprising:
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a first controller coupled to a host computer and controlling to receive data from said host computer and controlling to write data; a second controller coupled to said host computer and/or another host computer and controlling to receive data from said host computer and/or said another host computer and controlling to write data; and a plurality of first disk drive units each comprising a converter and a first disk drive, said converter converting between a Fibre Channel (FC) protocol and a Serial ATA (SATA) protocol, said first disk drive comprising a SATA interface and storing data sent via said converter; a first expansion housing comprising said first disk drive units; wherein each of said first disk drive units is coupled to said first controller via a first port and is coupled to said second controller via a second port. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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24. A disk array system comprising:
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a first controller coupled to a host computer and controlling to write data, sent from said host computer, according to Fibre Channel (FC) standard; a second controller coupled to said host computer and/or another host computer and controlling to write data, sent from said host computer and/or said another host computer, according to FC standard; a plurality of first disk drive units each comprising a interface circuit and a first disk drive, said interface circuit receiving data sent from said first controller and/or said second controller according to FC standard and sending data to said first disk drive according to Serial ATA (SATA) standard, said first disk drive receiving data according to SATA standard and storing data; and a first expansion housing comprises said first disk drive units; wherein each of said first disk drive units is coupled to both said first controller and said second controller. - View Dependent Claims (25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35)
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36. A disk array system comprising:
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a first controller coupled to a host computer and controlling to write data, sent from said host computer, via a first Fibre Channel (FC) communication medium; a second controller coupled to said host computer and/or another host computer and controlling to write data, sent from said host computer and/or said another host computer, via a second FC communication medium; and a plurality of first disk drive units each comprising one first disk drive, said first disk drive comprising a Serial ATA (SATA) interface and storing data converted to said SATA protocol in one of said first disk drive units; and a first expansion housing comprising said first disk drive units and is coupled to said first FC communication medium via a first connector and is coupled to said second FC communication medium via a second connector; wherein each of said first disk drive units is coupled to said first FC communication medium via a first port and is coupled to second FC communication medium via a second port. - View Dependent Claims (37, 38, 39, 40)
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41. A disk array system comprising:
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a first controller coupled to a host computer and controlling to write data sent from said host computer; a second controller coupled to said host computer and/or another host computer and controlling to write data sent from said host computer and/or said another host computer; a plurality of first disk drive units each comprising a converter and one first disk drive, said converter converting between a Fibre Channel (FC) signal and a Serial ATA (SATA) signal, said first disk drive comprising a SATA interface and storing data converted by said converter; and a first expansion housing comprising said first disk drive units; wherein each of said first disk drive units is coupled to both said first controller and said second controller. - View Dependent Claims (42, 43, 44, 45, 46, 47, 48)
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Specification