Storage system having plural controllers and an expansion housing with drive units
First Claim
1. A storage system comprising:
- a first controller coupled to a host computer, and receiving data from the host computer and transferring data to a plurality of second type drive units via a first type interface of the first controller according to a first type protocol; and
a second controller coupled to the host computer, and receiving data from the host computer and transferring data to the plurality of second type drive units via a first type interface of the second controller according to the first type protocol;
the plurality of second type drive units each comprising a converter and a second type drive including a second type interface and receiving data according to a second type protocol, the converter converting a command according to data sent from either the first controller or the second controller from the first type protocol to the second type protocol.
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Abstract
The storage system includes a first controller adapted to transfer/receive data to/from a host computer and to receive/transfer data from/to first type drive units via a first type interface of the first controller; a second controller adapted to transfer/receive data to/from the host computer and/or another host computer and to receive/transfer data from/to the first type drive units via a first type interface of the second controller, the first type drive units each having a converter and a first type drive, the converter converting between a first type protocol and a second type protocol, the first type drive having a second type interface and storing data converted to the second type protocol by the converter; and an expansion housing including the first type drive units. Each of the first type drive units are coupled to both the first and second controllers.
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Citations
51 Claims
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1. A storage system comprising:
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a first controller coupled to a host computer, and receiving data from the host computer and transferring data to a plurality of second type drive units via a first type interface of the first controller according to a first type protocol; and a second controller coupled to the host computer, and receiving data from the host computer and transferring data to the plurality of second type drive units via a first type interface of the second controller according to the first type protocol; the plurality of second type drive units each comprising a converter and a second type drive including a second type interface and receiving data according to a second type protocol, the converter converting a command according to data sent from either the first controller or the second controller from the first type protocol to the second type protocol. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A storage system comprising:
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a first controller coupled to a host computer, and receiving data from the host computer and transferring data to a plurality of second type drive units via a first type interface of the first controller according to a first type protocol; a second controller coupled to the host computer, and receiving data from the host computer and transferring data to the plurality of second type drive units via a first type interface of the second controller according to the first type protocol; and the plurality of second type drive units each comprising a converter and a second type drive including a second type interface and processing data according to a second type protocol, the converter receiving a first type data according to the first type protocol from either one of the first and second controllers and converting the first type data to a second type data according to the second type protocol. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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27. An expansion housing coupled to a main housing, the main housing having a first controller and a second controller each having a first type interface and transferring data according to a first type protocol, the expansion housing comprising:
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a plurality of second type drive units to be coupled to the first controller and to the second controller, each of the plurality of second type drive units having a second type drive including a second type interface and receiving data according to a second type protocol, and a converter converting a command corresponding to data sent from either the first controller or the second controller from the first type protocol to the second type protocol, and the second type drive receiving the command converted to the second type protocol by the converter. - View Dependent Claims (28, 29, 30, 31, 32, 33, 34, 35, 36)
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37. An expansion housing coupled to a main housing, the main housing having a first controller and a second controller, each controller having a first type interface and transferring data according to a first type protocol, the expansion housing comprising:
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a plurality of second type drive units, each second type drive unit having a second type drive having a second type interface and processing data according to a second type protocol, a converter to be coupled to the first controller and the second controller, the converter converting data sent from either the first controller or the second controller from the first type protocol to the second type protocol, and wherein the first type drive receives data converted to the second type protocol by the converter. - View Dependent Claims (38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48)
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49. A storage system comprising:
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a first controller coupled to a host computer, and receiving data from the host computer and transferring data to a plurality of second type drive units via a first type interface of the first controller according to a first type protocol; and a second controller coupled to the host computer, and receiving data from the host computer and transferring data to the plurality of second type drive units via a first type interface of the second controller according to the first type protocol; the plurality of second type drive units coupled to the first controller and the second controller, each of the second type drive units comprising a second type drive, which includes a second type interface and processes data according to a second type protocol, and a converter converting between the first type protocol and the second type protocol. - View Dependent Claims (50, 51)
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Specification