Storage system and storage control device
First Claim
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1. A virtualization system, comprising:
- a first virtualization device having a first virtual volume related to a first logical volume of a first storage system, said first storage system having a first storage controller, a plurality of first disk drives and said first logical volume related to at least one of said first disk drives; and
a second virtualization device having a second virtual volume related to a second logical volume of a second storage system, said second storage system having a second storage controller, a plurality of second disk drives and said second logical volume related to at least one of said second disk drives, whereinthe first and second virtualization devices are configured to copy data between the first and second virtual volumes, the first and second virtualization devices being configured to selectively control a plurality of data copy processes between the first virtual volume and the second virtual volume, the data copy processes including a first copy process copying data between the first and second storage systems without being via the first and second virtualization devices, and a second copy process copying data between the first and second storage systems via the first and second virtualization devices.
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Abstract
A first storage control device is provided with a virtual LU for showing a logical volume possessed by a second storage control device as if it were its own volume. When data processing requested from a host device is, for example, a specific processing of large load (such as direct backup, logical volume copy, and so on), whether or not the requested processing can be executed by the second storage control device is judged. When it is executable, a command is transmitted to the second storage control device to make it take over the processing.
189 Citations
43 Claims
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1. A virtualization system, comprising:
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a first virtualization device having a first virtual volume related to a first logical volume of a first storage system, said first storage system having a first storage controller, a plurality of first disk drives and said first logical volume related to at least one of said first disk drives; and a second virtualization device having a second virtual volume related to a second logical volume of a second storage system, said second storage system having a second storage controller, a plurality of second disk drives and said second logical volume related to at least one of said second disk drives, wherein the first and second virtualization devices are configured to copy data between the first and second virtual volumes, the first and second virtualization devices being configured to selectively control a plurality of data copy processes between the first virtual volume and the second virtual volume, the data copy processes including a first copy process copying data between the first and second storage systems without being via the first and second virtualization devices, and a second copy process copying data between the first and second storage systems via the first and second virtualization devices. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A virtualization method, comprising the steps of:
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providing a first virtualization device having a first virtual volume related to a first logical volume of a first storage system, said first storage system having a first storage controller, a plurality of first disk drives and said first logical volume related to at least one of said first disk drives; providing a second virtualization device having a second virtual volume related to a second logical volume of a second storage system, said second storage system having a second storage controller, a plurality of second disk drives and said second logical volume related to at least one of said second disk drives; and copying data between the first and second virtualization devices so as to effect copying of data between the first and second virtual volumes, wherein said copying of data includes selectively controlling via the first and second virtualization devices a plurality of data copy processes between the first virtual volume and the second virtual volume, the data copy processes including a first copy process copying data between the first and second storage systems without being via the first and second virtualization devices, and a second copy process copying data between the first and second storage systems via the first and second virtualization devices. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A virtualization method for a system comprising a first virtualization device having a first virtual volume related to a first logical volume of a first storage system, said first storage system having a first storage controller and a plurality of first disk drives, and a second virtualization device having a second virtual volume related to a second logical volume of a second storage system, said second storage system having a second storage controller and a plurality of second disk drives, the method comprising the steps of:
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relating said first logical volume related to at least one of said first disk drives; relating said second logical volume related to at least one of said second disk drives; and copying data between the first and second virtual volumes via copying if data between the first and second virtualization devices, wherein said copying of data includes selectively controlling via the first and second virtualization devices a plurality of data copy processes between the first virtual volume and the second virtual volume, the data copy processes including a first copy process copying data between the first and second storage systems without being via the first and second virtualization devices, and a second copy process copying data between the first and second storage systems via the first and second virtualization devices. - View Dependent Claims (22, 23)
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24. A virtualization system, comprising:
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a first virtualization device having a first virtual volume related to a first logical volume of a first storage system, said first storage system having a first storage controller, a plurality of first disk drives and said first logical volume related to at least one of said first disk drives; and a second virtualization device having a second virtual volume related to a second logical volume of a second storage system, said second storage system having a second storage controller, a plurality of second disk drives and said second logical volume related to at least one of said second disk drives, wherein the first and second virtualization devices are configured to copy data between the first and second virtual volumes, the first and second virtualization devices being configured to selectively control a plurality of data copy processes between the first virtual volume and the second virtual volume, the data copy processes including a first copy process copying data between the first and second storage systems bypassing the first and second virtualization devices, and a second copy process copying data between the first and second storage systems via the first and second virtualization devices. - View Dependent Claims (25, 26, 27, 28, 29, 30, 31, 32)
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33. A virtualization method, comprising the steps of:
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providing a first virtualization device having a first virtual volume related to a first logical volume of a first storage system, said first storage system having a first storage controller, a plurality of first disk drives and said first logical volume related to at least one of said first disk drives; providing a second virtualization device having a second virtual volume related to a second logical volume of a second storage system, said second storage system having a second storage controller, a plurality of second disk drives and said second logical volume related to at least one of said second disk drives; and copying data between the first and second virtualization devices so as to effect copying of data between the first and second virtual volumes, wherein said copying of data includes selectively controlling via the first and second virtualization devices a plurality of data copy processes between the first virtual volume and the second virtual volume, the data copy processes including a first copy process copying data between the first and second storage systems bypassing the first and second virtualization devices, and a second copy process copying data between the first and second storage systems via the first and second virtualization devices. - View Dependent Claims (34, 35, 36, 37, 38, 39, 40, 41)
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42. A virtualization method for a system comprising a first virtualization device having a first virtual volume related to a first logical volume of a first storage system, said first storage system having a first storage controller and a plurality of first disk drives, and a second virtualization device having a second virtual volume related to a second logical volume of a second storage system, said second storage system having a second storage controller and a plurality of second disk drives, the method comprising the steps of:
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relating said first logical volume related to at least one of said first disk drives; relating said second logical volume related to at least one of said second disk drives; and copying data between the first and second virtual volumes via copying if data between the first and second virtualization devices, wherein said copying of data includes selectively controlling via the first and second virtualization devices a plurality of data copy processes between the first virtual volume and the second virtual volume, the data copy processes including a first copy process copying data between the first and second storage systems bypassing the first and second virtualization devices, and a second copy process copying data between the first and second storage systems via the first and second virtualization devices. - View Dependent Claims (43)
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Specification