Abstract: Storage drives of a plurality of types are mounted on a storage device together. A storage apparatus includes: an I/O controller that receives an access request sent from an information apparatus and writes data to or reads data from a storage drive; a storage drive mounting unit in which the storage drive is detachably mounted; a drive power supplying unit that supplies drive power to the storage drive mounted in the storage drive mounting unit; and a drive voltage identifying unit that identifies a voltage allowing data write to or data read from the storage drive mounted in the storage drive mounting unit, by raising a drive voltage applied to the storage drive from a voltage below a rated drive voltage of the storage drive. When the I/O controller writes data to or reads data from the storage drive, the drive power supplying unit applies the identified voltage to the storage drive to drive the storage drive.

Abstract: Provided is a storage apparatus for providing a logical storage area as a data storage area to an external apparatus, comprising: a physical storage medium for creating the logical storage area; first and second storage control modules each of which is communicatively coupled to the physical storage medium to control data input/output processing between the external apparatus and the logical storage area; and first and second power supply modules each of which supplies power to the physical storage medium and the first and second storage control modules and includes a blower for generating a cooling airflow to cool down the physical storage medium and the first and second storage control modules, wherein the blower of the first power supply module generates a first cooling airflow which flows through the physical storage medium, the first storage control module, and the first power supply module, the blower of the second power supply module generates a second cooling airflow which flows through the physical s

Abstract: In a storage sub-system adopting a redundant configuration for preventing data loss and continuing processing during failure, when failure occurs, a controller unit in which failure has occurred is blocked so as not to affect the normal controller unit, so that the performance of the storage sub-system is deteriorated and the redundancy thereof is lost until maintenance and component replacement is performed. According to the present invention, self diagnosis of the blocked area is executed and a failure area is isolated. Then, the blocked area is reconnected to the storage sub-system, so as to prevent deterioration of performance and overload of the device until maintenance and replacement is performed, and to reduce the time of failure analysis during maintenance by specifying the detailed failure area via self diagnosis.

Abstract: Provided is a storage apparatus for providing a logical storage area as a data storage area to an external apparatus, comprising: a physical storage medium for creating the logical storage area; first and second storage control modules each of which is communicatively coupled to the physical storage medium to control data input/output processing between the external apparatus and the logical storage area; and first and second power supply modules each of which supplies power to the physical storage medium and the first and second storage control modules and includes a blower for generating a cooling airflow to cool down the physical storage medium and the first and second storage control modules, wherein the blower of the first power supply module generates a first cooling airflow which flows through the physical storage medium, the first storage control module, and the first power supply module, the blower of the second power supply module generates a second cooling airflow which flows through the physical s

Abstract: To provide a storage subsystem in which, even when plural types of storage devices are provided, write processing from a cache memory to the plural types of storage devices is not delayed. Even when there are relative merits in writing performance of write data from the cache memory to the HDD and the SSD, the cache memories 13A, 13B with respect to the SSD having low writing performance are provided independently of the cache memories 12A, 12B with respect to the HDD.

Abstract: Storage drives of a plurality of types are mounted on a storage device together. A storage apparatus includes: an I/O controller that receives an access request sent from an information apparatus and writes data to or reads data from a storage drive; a storage drive mounting unit in which the storage drive is detachably mounted; a drive power supplying unit that supplies drive power to the storage drive mounted in the storage drive mounting unit; and a drive voltage identifying unit that identifies a voltage allowing data write to or data read from the storage drive mounted in the storage drive mounting unit, by raising a drive voltage applied to the storage drive from a voltage below a rated drive voltage of the storage drive. When the I/O controller writes data to or reads data from the storage drive, the drive power supplying unit applies the identified voltage to the storage drive to drive the storage drive.

Abstract: Provided is a storage subsystem capable of improving the data processing speed by balancing the load on processors and controllers. This storage subsystem includes a controller for controlling the input and output of data to and from a storage apparatus that provides to a host computer a plurality of logical units to become a storage extent for the host computer to read and write data, processes a command issued by the host computer, and has a storage resource in relation to the logical unit. The controller has a local memory for storing the command, and a processor configured from a plurality of cores for controlling the input and output of data to and from the logical unit to be subject to the input and output of the data based on the command. The local memory stores association information representing the correspondence between the plurality of logical units and the plurality of cores.

Abstract: In a network regulated so that the unique identification information for a basic storage apparatus and that of each of a plurality of additional storage apparatuses do not overlap, the storage apparatuses can be connected to the network without being assigned unique identification information. The basic storage apparatus judges, when an additional storage apparatus is powered-on, whether or not an initial value is set in an identification information setting unit in the additional storage apparatus, the identification information setting unit being where unique identification information in the network is set. If it is judged that an initial value is set in the identification information setting unit, the basic storage apparatus enters a first mode in which it creates unique identification information, replaces the initial value with the created identification information, and recognizes the created identification information as unique identification information in the network.

Abstract: Proposed is a storage controller and its control method for speeding up the processing time in response to a command in a simple manner while reducing the load of a controller that received a command targeting a non-associated logical volume. This storage controller includes a plurality of controllers for controlling the input and output of data to and from a corresponding logical unit based on a command retained in a local memory, and the local memory stores association information representing the correspondence of the logical units and the controllers and address information of the local memory in each of the controllers of a self-system and another-system.

Abstract: The storage control device of the present invention switch-connects each of enclosures and individually stops the transmission of power to the enclosures that are not being accessed in order to reduce the power consumption amount. A plurality of additional enclosures are switch-connected via an inter-device switch to a base enclosure. Drives that have not been accessed for a predetermined period of time or more undergo spindown. If all the drives in the enclosure then assume the spindown state, the supply of power to each of the drives from the intra-enclosure power supply is stopped. In cases where all the drives in a certain enclosure have undergone spindown, the base enclosure turns OFF the switch in the power distribution circuit connected to this enclosure. As a result, the transmission of power to this enclosure is stopped. The fault diagnosis section detects a fault that has occurred with communications that employ the inter-device switch and specifies the point of the fault occurrence.

Abstract: Provided is a storage subsystem capable of improving the data processing speed by balancing the load on processors and controllers. This storage subsystem includes a controller for controlling the input and output of data to and from a storage apparatus that provides to a host computer a plurality of logical units to become a storage extent for the host computer to read and write data, processes a command issued by the host computer, and has a storage resource in relation to the logical unit. The controller has a local memory for storing the command, and a processor configured from a plurality of cores for controlling the input and output of data to and from the logical unit to be subject to the input and output of the data based on the command. The local memory stores association information representing the correspondence between the plurality of logical units and the plurality of cores.

Abstract: To provide a storage subsystem in which, even when plural types of storage devices are provided, write processing from a cache memory to the plural types of storage devices is not delayed. Even when there are relative merits in writing performance of write data from the cache memory to the HDD and the SSD, the cache memories 13A, 13B with respect to the SSD having low writing performance are provided independently of the cache memories 12A, 12B with respect to the HDD.

Abstract: Provided is a storage subsystem capable of improving the data processing speed by balancing the load on processors and controllers. This storage subsystem includes a controller for controlling the input and output of data to and from a storage apparatus that provides to a host computer a plurality of logical units to become a storage extent for the host computer to read and write data, processes a command issued by the host computer, and has a storage resource in relation to the logical unit. The controller has a local memory for storing the command, and a processor configured from a plurality of cores for controlling the input and output of data to and from the logical unit to be subject to the input and output of the data based on the command. The local memory stores association information representing the correspondence between the plurality of logical units and the plurality of cores.

Abstract: Provided is an information processing apparatus including a local memory for storing a control program, a flash memory for storing a boot program, a processor for controlling the overall controller, a chipset for relaying the transfer of data among the respective components, and a logical control circuit arranged between the chipset and the flash memory. The logical control circuit performs information conversion processing to accommodate the logical configuration of the chipset and the flash memory when sending and receiving information between the chipset and the flash memory. This information conversion processing includes the steps of translating a serial address signal output from the chipset into a parallel address signal, translating a serial data signal output from the chipset into a parallel data signal, and translating a parallel data signal output from the flash memory into a serial data signal.

Abstract: A storage system connected to a host device from which IO commands are sent comprises a plurality of load devices that act as loads including a plurality of storage devices, a current measuring unit that measures a current value flowing into the plurality of load devices, a power calculating unit that calculates at each time a power consumption value consumed by the plurality of load devices based on the measured current value, and a controller that receives an IO command from the host device, and accesses a storage device that follows the IO command out of the plurality of storage devices. The controller carries out power consumption control such that the calculated power consumption value is not more than a predetermined allowed power value and a difference between the power consumption value and the allowed power value is as small as possible.

Abstract: The storage control device of the present invention switch-connects each of enclosures and individually stops the transmission of power to the enclosures that are not being accessed in order to reduce the power consumption amount. A plurality of additional enclosures are switch-connected via an inter-device switch to a base enclosure. Drives that have not been accessed for a predetermined period of time or more undergo spindown. If all the drives in the enclosure then assume the spindown state, the supply of power to each of the drives from the intra-enclosure power supply is stopped. In cases where all the drives in a certain enclosure have undergone spindown, the base enclosure turns OFF the switch in the power distribution circuit connected to this enclosure. As a result, the transmission of power to this enclosure is stopped. The fault diagnosis section detects a fault that has occurred with communications that employ the inter-device switch and specifies the point of the fault occurrence.

Abstract: In a network regulated so that the unique identification information for a basic storage apparatus and that of each of a plurality of additional storage apparatuses do not overlap, the storage apparatuses can be connected to the network without being assigned unique identification information. The basic storage apparatus judges, when an additional storage apparatus is powered-on, whether or not an initial value is set in an identification information setting unit in the additional storage apparatus, the identification information setting unit being where unique identification information in the network is set. If it is judged that an initial value is set in the identification information setting unit, the basic storage apparatus enters a first mode in which it creates unique identification information, replaces the initial value with the created identification information, and recognizes the created identification information as unique identification information in the network.

Abstract: Provided is a storage subsystem capable of improving the data processing speed by balancing the load on processors and controllers. This storage subsystem includes a controller for controlling the input and output of data to and from a storage apparatus that provides to a host computer a plurality of logical units to become a storage extent for the host computer to read and write data, processes a command issued by the host computer, and has a storage resource in relation to the logical unit. The controller has a local memory for storing the command, and a processor configured from a plurality of cores for controlling the input and output of data to and from the logical unit to be subject to the input and output of the data based on the command. The local memory stores association information representing the correspondence between the plurality of logical units and the plurality of cores.

Abstract: Proposed is a storage controller and its control method for speeding up the processing time in response to a command in a simple manner while reducing the load of a controller that received a command targeting a non-associated logical volume. This storage controller includes a plurality of controllers for controlling the input and output of data to and from a corresponding logical unit based on a command retained in a local memory, and the local memory stores association information representing the correspondence of the logical units and the controllers and address information of the local memory in each of the controllers of a self-system and another-system.

Abstract: A storage system connected to a host device from which IO commands are sent comprises a plurality of load devices that act as loads including a plurality of storage devices, a current measuring unit that measures a current value flowing into the plurality of load devices, a power calculating unit that calculates at each time a power consumption value consumed by the plurality of load devices based on the measured current value, and a controller that receives an IO command from the host device, and accesses a storage device that follows the IO command out of the plurality of storage devices. The controller carries out power consumption control such that the calculated power consumption value is not more than a predetermined allowed power value and a difference between the power consumption value and the allowed power value is as small as possible.