Remote storage disk control device and method for controlling the same
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Abstract
A storage device system includes an information processing device, a first storage device equipped with a first storage volume, and a second storage device equipped with a second storage volume. The information processing device and the first storage device are communicatively connected to one another. Also, the first storage device and the second storage device are communicatively connected to one another. The information processing device is equipped with a first write request section that requests to write data in the first storage device according to a first communications protocol, and a second write request section that requests to write data in the second storage device according to a second communications protocol. The information processing device creates first data including a first instruction to be executed in the second storage device. The information processing device transmits to the first write request section a request to write the first data in the first storage volume according to the first communications protocol. When the first data written in the first storage volume is an instruction to the second storage device, the first storage device transmits to the second write request section a request to write the first data in the second storage volume according to the second communications protocol. The second storage device executes the first instruction set in the first data written in the second storage volume.
126 Citations
49 Claims
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1-29. -29. (canceled)
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30. A storage system, comprising:
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a first storage device coupled to an information processing device having a first controller and a plurality of first disk drives;
said first controller controlling to store data received from said information processing device in said first disk drives and receiving a first command sent from said information processing device to a second storage device and transferring said first command to said second storage device, said first command being used to request a change of relationship between a first logical volume in said second storage device and an second logical volume in said first storage device;
said second storage device coupled to said first storage device having a second controller and a plurality of second disk drives, said second disk drives being corresponding to a plurality of logical volumes which have said first logical volume; and
said second controller controlling to store data in said second disk drives and receiving said first command from said first storage device and controlling to change said relationship between said first logical volume and said second logical volume in response to said command. - View Dependent Claims (31, 32, 33, 34, 35, 36, 37, 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 storage device coupled to an information processing device having a plurality of first disk drives;
a first controller controlling to store data received from said information processing device in said first disk drives and receiving a command sent from said information processing device and transferring said first command, said first command being used to request a change of relationship between a first logical volume in said first storage device and an second logical volume;
a second storage device coupled to said first storage device having a plurality of second disk drives, said second disk drives being corresponding to a plurality of logical volumes which have said second logical volume; and
a second controller controlling to store data in said second disk drives and receiving said first command from said first storage device and changing said relationship between said first logical volume in said first storage device and said second logical volume in said second storage device.
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Specification