Abstract:
To prevent, when data is erased from a storage system that stores differential of updated data, a large amount of differential data from being created, a storage subsystem provides a first storage area which stores data, and includes a second storage area which stores a replication of data stored in the first storage area. When the data stored in the first storage area is updated, the data is replicated to the second storage area before the data is updated. When a request to erase the data stored in the first storage area is received, replication of unupdated data to the second storage area is suspended and the data stored in the first storage area is erased based on the request to erase the data.
Abstract:
In a silicon substrate for a package, a through electrode is provided with which a through hole passing through from a bottom surface of a cavity for accommodating a chip of an electronic device to a back surface of the substrate is filled. An end part of the through electrode in the bottom surface side of the cavity has a connection part to a wiring that forms an electric circuit including the chip of the electronic device. The silicon substrate for a package is characterized in that (1) a thin film wiring is included as the wiring and the connection part is reinforced by a conductor connected to the thin film wiring and/or (2) a wire bonding part is included as the wiring and the connection part is formed by wire bonding the end part of the through electrode in the bottom surface side of the cavity.
Abstract:
For a storage system which holds backup data of a first data storage extent in one or more second data storage extents in use of a first backup method, a backup status in a first backup method in a prescribed period is acquired and a first backup performance in a first backup configuration is computed based on this backup status. Meanwhile, a second backup performance in a second backup configuration is estimated based on a prescribed assumption in a prescribed period. Information is outputted based on the computed first backup performance and the estimated second backup performance.
Abstract:
A computer system comprises a storage subsystem, a host computer and a management computer, and stores catalogue information containing correspondence between a first volume for data reading or writing and a second volume for storing a copy of the data stored in the first volume. The management computer requests the storage subsystem to erase the data stored in the first volume upon reception of an erasure request of the data stored in the first volume. The storage subsystem erases the data stored in the first volume. The management computer specifies a second volume for storing the copy of the data stored in the first volume based on the catalogue information. The storage subsystem erases data stored in the specified second volume. Thus, security risks are reduced by erasing data regarding the data when the data stored in the volume is erased.
Abstract:
A heat radiation package of the present invention includes a substrate in an upper surface side of which recess portion is provided, embedded wiring portion which is filled in the recess portion of the substrate and on which semiconductor element which generates a heat is mounted, and a heat sink connected to a lower surface side of the substrate. The substrate is made of silicon, ceramics, or insulating resin.
Abstract:
There is provided a semiconductor device in which a light emitting element is mounted on a substrate, having a bonding wire which is connected to the light emitting element, and a through electrode which is connected to the bonding wire and is formed in such a manner as to pass through the substrate at a position lying directly below a connecting portion with the bonding wire.
Abstract:
The load of managing a storage system is lessened. In a storage system where multiple logical volumes are included in a logical volume group and a copy of the logical volume group is made in a pool area different from the one to which the logical volume group belongs, a management computer adds to the pool area capacity when the capacity of a pool area exceeds a predetermined threshold. When the pool area includes multiple logical volume groups, the management computer requests the storage system to create a pool area for each of the logical volume groups and to create the logical volume groups respectively for the created pool areas. When the pool area includes one logical volume group, the management computer requests the storage system to make the capacity of the pool area coincide with the capacity of a pool area to which the logical volume group is copied.
Abstract:
Provided is a computer system including a storage subsystem, a host computer, and a management computer for managing the storage subsystem and the host computer. The storage subsystem manages a storage extent by a group unit and creates storage extent configuration information. The management computer stores group management information, obtains the storage extent configuration information, calculates an assigned capacity for each group based on the obtained storage extent configuration information, forecasts a capacity to be assigned in the future for each group based on the calculated assigned capacity, calculates a protection term expired capacity for each group based on the group management information and the storage extent configuration information, and outputs the assigned capacity, the capacity to be assigned in the future, and the protection term expired capacity. Thus, the storage extent of the storage subsystem can easily be managed.
Abstract:
Provided is a storage subsystem configuration management method for use in a computer system, comprising: obtaining storage configuration information and hardware resource use information; determining, based on the obtained hardware resource use information, a configuration of a storage subsystem so that a load is not concentrated on a specific hardware resource; transmitting a configuration change instruction to make a change to the determined configuration to the storage subsystem; and making a configuration change based on the configuration change instruction received from the management computer through the first interface.
Abstract:
This management computer for managing a plurality of storage apparatuses having a volume storing data sent from a host computer has a schedule information acquisition unit for acquiring schedule information as a schedule of a time frame in which the host computer accesses the volume of the plurality of storage apparatuses, and a power supply control command unit for sending to a corresponding storage apparatus a power supply control command for turning off a main power supply of the storage apparatus of a time frame in which the volume is not accessed based on a referral result of the schedule information acquired with the schedule acquisition unit.