Patent application number | Description | Published |
20080201593 | Storage control device - The storage control device of the present invention reduces the power consumption amount by stopping the transmission of power to enclosures that are not accessed. A plurality of additional enclosures are switch-connected via backend switches to a base enclosure. Drives that have not been accessed for a predetermined time or more undergo spin-down. When all of the drives in the enclosure enter a spin-down state, the supply of power from the power supply in the enclosure to the respective drives is stopped. The base enclosure that manages the system constitution of the storage control device turns OFF the switch connected to the enclosure when all of the drives in a certain enclosure have spun down. The transmission of power to this enclosure is accordingly stopped. | 08-21-2008 |
20100019735 | Storage system including a plurality of battery modules - In a storage system provided with a plurality of storage modules, the rated power consumption can be reduced. The storage system is provided with a charge control unit. The charge control unit stops, when detecting that a predetermined number of a plurality of battery modules are during battery charging, the battery charging in the remaining battery modules. | 01-28-2010 |
20100070789 | Storage control device - The storage control device of the present invention reduces power consumption by stopping the flow of power to enclosures that are not being accessed. A plurality of additional enclosures are connected to a base enclosure by means of a daisy-chain connection. The respective additional enclosures are divided into three levels, namely a low usage frequency level, a medium usage frequency level, and a high usage frequency level depending on the connection distance of the additional enclosures from the base enclosure. Drives that have not been accessed for a predetermined time are spun down. When all the drives in the enclosure are in the spindown state, the supply of power from the power supply to the respective drives is stopped. Further, when the flow of power to an additional enclosure located below the enclosure itself has stopped, the switch of the latter enclosure is turned OFF and the flow of power to the additional enclosure is stopped. | 03-18-2010 |
20110264943 | STORAGE CONTROL DEVICE - The storage control device of the present invention reduces the power consumption amount by stopping the transmission of power to enclosures that are not accessed. A plurality of additional enclosures is switch-connected via backend switches to a base enclosure. Drives that have not been accessed for a predetermined time or more undergo spin-down. When all of the drives in the enclosure enter a spin-down state, the supply of power from the power supply in the enclosure to the respective drives is stopped. The base enclosure that manages the system constitution of the storage control device turns OFF the switch connected to the enclosure when all of the drives in a certain enclosure have spun down. The transmission of power to this enclosure is accordingly stopped. | 10-27-2011 |
20120161720 | STORAGE SYSTEM INCLUDING A PLURALITY OF BATTERY MODULES - In a storage system provided with a plurality of storage modules, the rated power consumption can be reduced. The storage system is provided with a charge control unit. The charge control unit Stops, when detecting that a predetermined number of a plurality of battery modules are during battery charging, the battery charging in the remaining battery modules. | 06-28-2012 |
20120324274 | STORAGE SYSTEM AND CONTROL METHOD FOR A STORAGE SYSTEM - It is provided a storage system for storing write data requested by a host computer, comprising: a data storage device, first and second cache memories, first and second non-volatile memories and at least one power storage device, wherein the storage system stores the requested write data in the data storage device, without storing the requested write data in neither the first cache memory nor the second cache memory in a case where the amount of charge of the at least one power storage device is smaller than the predetermined amount of power, and stores the requested write data in at least one of the first and second cache memories, and then store the requested write data in the data storage device in a case where the amount of charge of the at least one power storage device is equal to or larger than the predetermined amount of power. | 12-20-2012 |