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US 8,555,008 B2Granted
Storage system with storage medium package power control
AssigneeHitachi, Ltd.
InventorsKotaro Muramatsu, Ikuya Yagisawa, Yoshifumi Zimoto
Life of this patent
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Abstract
The present invention makes is possible to appropriately set the power saving control of the storage device from the management device of the storage device. In addition, the storage device executes control of the power saving for the magnetic disk device after ensuring consistency between an instruction from the administrator and the operating state of the magnetic disk device in the storage device.
Claims14
A storage system comprising:
- a first enclosure including a first interface controller, a first controller and a first storage medium package which includes a plurality of first disk devices and a first fan;
- a second enclosure including a second interface controller coupled to the first interface controller in the first enclosure and a second storage medium package which includes a plurality of second disk devices and a second fan;
- and
- a management apparatus coupled to the first enclosure,
- wherein if the first controller receives a first instruction to change a state of a second disk from the management apparatus and does not receive access to a logical unit corresponding to the second disk for a predetermined time from receipt of the first instruction, the state of the second disk is changed to a power saving mode, and
- wherein the first controller issues a second instruction to stop power supply to the second storage medium package while power supply to the second interface controller is maintained.
3 more elements
A storage system comprising:
- a first enclosure including a host interface coupled to a host computer, a first storage medium package which includes a plurality of first disk devices, and a controller processing I/O request to a logical unit provided by the plurality of first disk devices;
- a second enclosure including an interface controller coupled to the first enclosure, and a second storage medium package which includes a plurality of second disk devices;
- and
- a management apparatus coupled to the first enclosure;
- wherein if the first controller receives a first instruction to change a state of a second disk from the management apparatus and does not receive access to a logical unit corresponding to the second disk for a predetermined time from receipt of the first instruction, the state of the second disk is changed to a power saving mode, and
- wherein the controller issues a second instruction to stop power supply to the second storage medium package while power supply to the interface controller is maintained.
3 more elements
Dependencies are inferred from the claim text.