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US 7,681,061 B2Granted
Disk array device and method of supplying power to disk array device
AssigneeHitachi, Ltd.
InventorsHiroshi Suzuki, Hiromi Matsushige, Masato Ogawa, Tomokazu Yokoyama
Life of this patent
Estimating the term…
Abstract
A disk array device and a method of supplying power to a disk array device to which power is supplied by at least two AC inputs are provided. Where at least two AC/DC power-supply groups are provided in correspondence with each of the AC inputs and each AC/DC power-supply group includes at least two AC/DC power supplies that are connected to the AC input corresponding to that group, outputs from the AC/DC power supplies are summed separately for each group to obtain group total outputs for each group, and the group total outputs are input to each of a plurality of loads in the disk array device to provide power to each of the loads.
Claims19
A storage system, comprising:
- a controller configured to transfer data to a plurality of storage regions;
- at least one data line being used to relay data transferred from said controller;
- a plurality of disk drive housings coupled to said at least one data line and each having a disk drive which has some of said storage regions;
- at least one first AC/DC power supply being inputted AC input and supplying said disk drive housings with DC power;
- at least one first power line coupled to said at least one first AC/DC power supply and said disk drive housings and being used to relay DC power to said disk drive housings;
- at least one second AC/DC power supply being inputted AC input and supplying said disk drive housings with DC power;
- at least one second power line coupled to said at least one second AC/DC power supply and said disk drive housings and being used to relay DC power to said disk drive housings;
- and
- a first DC power supply coupled to said at least one first power line and said at least one second power line and corresponding to a first disk drive housing of said disk drive housings and supplying said first disk drive housing with DC power which is less than inputted DC power,
- wherein said at least one first power line is used to relay DC power from said at least one first AC/DC power supply to said disk drive housings, if a part related to said first disk drive housing does not have a failure,
- wherein said at least one first power line is used to relay DC power from said at least one first AC/DC power supply to said disk drive housings except said first disk drive housing, if said part related to said first disk drive housing has a failure,
- wherein said plurality of disk drive housings, said at least one first power line and said at least one second power line are provided in a disk drive unit housing, and
- wherein a plurality of such disk drive unit housings are provided within the storage system.
10 more elements
A storage system, comprising:
- a controller configured to transfer data to a plurality of storage regions;
- at least one data line being used to relay data transferred from said controller;
- a plurality of disk drive housings coupled to said at least one data line and each having a disk drive which has some of said storage regions;
- at least one first AC/DC power supply being inputted AC input and supplying said disk drive housings with DC power;
- at least one first power line coupled to said at least one first AC/DC power supply and being used to relay DC power to said disk drive housings;
- at least one second AC/DC power supply being inputted AC input and supplying said disk drive housings with DC power;
- at least one second power line coupled to said at least one second AC/DC power supply and being used to relay DC power to said disk drive housings;
- a first DC power supply coupled to said at least one first power line and said at least one second power line and corresponding to a first disk drive housing of said disk drive housings and supplying said first disk drive housing with DC power which is less than inputted DC power;
- and
- a second DC power supply coupled to said at least one first power line and said at least one second power line and corresponding to a second disk drive housing of said disk drive housings and supplying said second disk drive housing with DC power which is less than inputted DC power,
- wherein said at east one first power line is used to relay DC power from said at least one first AC/DC power supply to said first disk drive housing and said second disk drive housing, if a part related to said first disk drive housing does not have a failure,
- wherein said at least one first power line is used to relay DC power from said at least one first AC/DC power supply to said second disk drive housing but not said first disk drive housing, if said part related to said first disk drive housing has a failure,
- wherein said plurality of disk drive housings, said at least one first power line and said at least one second power line are provided in a disk drive unit housing, and
- wherein a plurality of such disk drive unit housings are provided within the storage system.
11 more elements
A storage system, comprising:
- a controller configured to transfer data to a plurality of storage regions;
- at least one data line being used to relay data transferred from said controller;
- a plurality of disk drive housings coupled to said at least one data line and each having a disk drive which has some of said storage regions;
- at least one first AC/DC power supply being inputted AC input and supplying said disk drive housings with DC power;
- at least one first power line coupled to said at least one first AC/DC power supply and being used to relay DC power to said disk drive housings;
- at least one second AC/DC power supply being inputted AC input and supplying said disk drive housings with DC power;
- at least one second power line coupled to said at least one second AC/DC power supply and being used to relay DC power to said disk drive housings;
- a first DC power supply coupled to said at least one first power line and said at least one second power line and corresponding to a first disk drive housing of said disk drive housings and supplying said first disk drive housing with DC power which is less than inputted DC power;
- and
- a second DC power supply coupled to said at least one first power line and said at least one second power line and corresponding to a second disk drive housing of said disk drive housings and supplying said second disk drive housing with DC power which is less than inputted DC power,
- wherein said at least one first power line is used to relay DC power from said at least one first AC/DC power supply to said first disk drive housing and said second disk drive housing, if a part related to said first disk drive housing does not have a failure,
- wherein said at least one first power line is used to relay DC power form said at least one first AC/DC power supply to said second disk drive housing but not said first disk drive housing, if said part related to said first disk drive housing has a failure
- wherein said plurality of disk drive housings, said at least one first power line and said at least one second power line are provided in a disk drive unit housing, and
- wherein a plurality of such disk drive u housings are provided within the storage system.
11 more elements
A storage system, comprising:
- a controller configured to transfer data to a plurality of storage regions;
- at least one data line being used to relay data transferred from said controller to said storage regions;
- at least one first AC/DC power supply being inputted AC input and supplying DC power;
- at least one first power line coupled to said at least one first AC/DC power supply and being used to relay DC power;
- at least one second AC/DC power supply being inputted AC input and supplying DC power;
- at least one second power line coupled to said at least one second AC/DC power supply and being used to relay DC power;
- a first DC power supply coupled to said at least one first power line and said at least one second power line and corresponding to a first storage region of said storage regions and supplying DC power which is less than inputted DC power;
- and
- a second DC power supply coupled to said at least one first power line and said at least one second power line and corresponding to a second storage region of said storage regions and supplying DC power which is less than inputted DC power,
- wherein said first storage region is in a first load,
- wherein said second storage region is in a second load,
- wherein said at least one first power line is used to relay DC power from said at least one first AC/DC power supply to said first load and said second load, if a part related to said first load does not have a failure,
- wherein said at least one first power line is used to relay DC power from said at least one first AC/DC power supply to said second load but not said first load, if said part related to said first load has a failure,
- wherein said plurality of storage regions, said at least one first power line and said at least one second power line are provided in a disk drive unit housing, and
- wherein a plurality of such disk drive unit housings are provided within the storage system.
12 more elements
A storage system, comprising:
- a controller configured to transfer data to a plurality of storage regions;
- at least one data line being used to relay data transferred from said controller;
- a plurality of disk drive housings coupled to said at least one data line and each having a disk drive which has some of said storage regions;
- at least one first AC/DC power supply being inputted AC input and supplying said disk drive housings with DC power;
- at least one second AC/DC power supply being inputted AC input and supplying said disk drive housings with DC power;
- at least one first power line coupled to said at least one first AC/DC power supply and being used to relay DC power to said disk drive housings;
- at least one second power line coupled to said at least one second AC/DC power supply and being used to relay DC power to said disk drive housings;
- a first DC power supply coupled to said at least one first power line and said at least one second power line and corresponding to a first disk drive housing of said disk drive housings and supplying said first disk drive housing with DC power;
- and
- a second DC power supply coupled to said at least one first power line and said at least one second power line and corresponding to a second disk drive housing of said disk drive housings and supplying said second disk drive housing with DC power which is less than inputted DC power,
- wherein said first DC power supply couples to said at least one first power line via a first backflow prevention device and couples to said at least one second power line via a second backflow prevention device,
- wherein either said first backflow prevention device or said second backflow prevention device supplies said first disk drive housing with DC power,
- wherein said at least one first power line is used to relay DC power from said at least one first AC/DC power supply to said first disk drive housing and said second disk drive housing, if a part related to said first disk drive housing does not have a failure,
- wherein said at least one first power line is used to relay DC power from said at least one first AC/DC power supply to said second disk drive housing but not said first disk drive housing, if said part related to said first disk drive housing has a failure,
- wherein said plurality of disk drive housings, said at least one first power line and said at least one second power line are provided in a disk drive unit housing, and
- wherein a plurality of such disk drive unit housings are provided within the storage system.
13 more elements
A storage system, comprising:
- a controller configured to transfer data to a plurality of storage regions;
- at least one data line being used to relay data transferred from said controller;
- a plurality of disk drive housings coupled to said at least one data line and each having a disk drive which has some of said storage regions;
- at least one first AC/DC power supply being inputted AC input and supplying said disk drive housings with DC power;
- at least one second AC/DC power supply being inputted AC input and supplying said disk drive housings with DC power;
- at least one first power line coupled to said at least one first AC/DC power supply and being used to relay DC power to said disk drive housings;
- at least one second power line coupled to said at least one second AC/DC power supply and being used to relay DC power to said disk drive housings;
- a first DC power supply coupled to said at least one first power line and said at least one second power line and corresponding to a first disk drive housing of said disk drive housings and supplying said first disk drive housing with DC power which is less than inputted DC power;
- and
- a second DC power supply coupled to said at least one first power line and said at least one second power line and corresponding to a second disk drive housing of said disk drive housings and supplying said second disk drive housing with DC power which is less than inputted DC power,
- wherein said first DC power supply couples to said at least one first power line via a first backflow prevention device and couples to said at least one second power line via a second backflow prevention device,
- wherein either said first backflow prevention device or said second backflow prevention device supplies said first disk drive housing with DC power,
- wherein said at least one first power line is used to relay DC power from said at least one first AC/DC power supply to said first disk drive housing and said second disk drive housing, if a part related to said first disk drive housing does not have a failure,
- wherein said at least one first power line is used to relay DC power from said at least one first AC/DC power supply to said second disk drive housing but not said first disk drive housing, if said part related to said first disk drive housing has a failure,
- wherein said plurality of said disk drive housings, said at least one first power line and said at least one second power line are provided in a disk drive unit housing, and
- wherein a plurality of such disk drive unit housings are provided within the storage system.
13 more elements
Dependencies are inferred from the claim text.