Storage system and storage control device
First Claim
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1. A virtualization system, comprising:
- a first storage system having a first storage controller, a plurality of first disk drives and a first logical volume related to at least one of said first disk drives;
a first virtualization device having a first virtual volume related to the first logical volume of the first storage system;
a second storage system having a second storage controller, a plurality of second disk drives and a second logical volume related to at least one of said second disk drives; and
a second virtualization device having a second virtual volume related to the second logical volume of the second storage system, whereinthe first and second virtualization devices are adapted to configure to copy data between the first and second virtual volumes, and the first and second storage systems are adaptive to configure to copy data between the first and second logical volumes, andafter the first virtualization device confirms that both of the first and second storage systems support logical volume copying function and the second virtualization device acquires mapping information for loading the second logical volume operating as the second virtual volume, then the first storage system instructs copying data from the first logical volume to the second logical volume.
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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.
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Citations
26 Claims
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1. A virtualization system, comprising:
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a first storage system having a first storage controller, a plurality of first disk drives and a first logical volume related to at least one of said first disk drives; a first virtualization device having a first virtual volume related to the first logical volume of the first storage system; a second storage system having a second storage controller, a plurality of second disk drives and a second logical volume related to at least one of said second disk drives; and a second virtualization device having a second virtual volume related to the second logical volume of the second storage system, wherein the first and second virtualization devices are adapted to configure to copy data between the first and second virtual volumes, and the first and second storage systems are adaptive to configure to copy data between the first and second logical volumes, and after the first virtualization device confirms that both of the first and second storage systems support logical volume copying function and the second virtualization device acquires mapping information for loading the second logical volume operating as the second virtual volume, then the first storage system instructs copying data from the first logical volume to the second logical volume. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 21, 24)
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10. A virtualization method, comprising the steps of:
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providing a first storage system having a first storage controller, a plurality of first disk drives, and a first logical volume related to at least one of said first disk drives, and a first virtualization device having a first virtual volume related to the first logical volume of the first storage system; providing a second storage system having a second storage controller, a plurality of second disk drives, and a second logical volume related to at least one of said second disk drives, and a second virtualization device having a second virtual volume related to the second logical volume of the second storage system; copying data between the first and second virtualization devices so as to effect copying of data between the first and second virtual volumes; copying data between the first and second storage systems so as to effect copying of data between the first and second logical volumes; and after confirming that both of the first and second storage systems support logical volume copying function and the second virtualization device acquires mapping information for loading the second logical volume operating as the second virtual volume, then copying data from the first logical volume to the second logical volume. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 22, 25)
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19. A virtualization method for a system comprising a first storage system having a first storage controller, a plurality of first disk drives and a first logical volume related to at least one of said first disk drives, a first virtualization device having a first virtual volume related to the first logical volume of the first storage system, a second storage system having a second storage controller, a plurality of second disk drives and a second logical volume related to at least one of said second disk drives, and a second virtualization device having a second virtual volume related to the second logical volume of the second storage system, 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; copying data between the first and second virtual volumes via copying if data related to the first and second virtualization devices; copying data between the first and second logical volumes via copying if data related to the first and second storage systems; and after confirming that both of the first and second storage systems support logical volume copying function and the second virtualization device acquires mapping information for loading the second logical volume operating as the second virtual volume, then copying data from the first logical volume to the second logical volume. - View Dependent Claims (20, 23, 26)
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Specification