摘要:
For example, a second storage device as a target device is shared by a first storage device, for example, as a host computer or a client as a privileged device. The target device manages an access permission ID for identifying the access permission to the target device, executes processing to give an access permission to the privileged device or client who requests the access permission, and judges whether to give access permission for the access request after this, according to the access permission ID.
摘要:
According to the present invention, it is possible to enhance a performance in accessing a storage system, without performing data migration process between the storages constituting the storage system. A virtualization controller 2 connecting a host computer 1 and a storage 3 constituting the storage system controls a plurality of access paths (path such as port 6—backplane 9—port 6, port 6—backplane 9—storage controller 7—port 6) provided within the virtualization controller. It further performs a control so that an optimum access path is selected for switching, out of the plurality of access paths, based on setting information from a management server 4 by a system administrator and various monitoring results detected by the virtualization controller itself.
摘要:
A disk drive apparatus mounting socket includes a socket portion which supports a disk drive apparatus, a lead portion which is connected to the disk drive apparatus supported by the socket portion, and a terminal unit which is electrically connected to the lead portion and to circuits on a board. A disk drive apparatus, which is connectable to an information processing unit, includes a connecting unit which connects the disk drive apparatus to the information processing unit, and an interface unit which controls the disk drive apparatus in response to a control signal, a data bus signal, and an address bus signal which are generated by the information processing unit and are inputted to the disk drive apparatus from the information processing unit via the connecting unit.
摘要:
In a disk array system, data read out and data written anew are temporarily held as former data in a former data holding portion. When a write operation has occurred, a CPU searches the holding portion for write data, it generates update data from the new and former write data items, and it holds the generated update data in an update data holding portion. In addition, the CPU stores the storage address of redundant data associated with the held update data, as log data in a log data holding portion. Further, the CPU operates asynchronously with the write operation to read out the redundant data of the address of the holding portion, to calculate new redundant data from the read redundant data and the held update data, and to write the new redundant data into the address of the log data. On this occasion, a parity area and a data area are separated so as to heighten read/write processing speeds and a parity generation processing speed.
摘要:
An airbag apparatus for a vehicle in which the installing work is simple, the weight is light and there is no fear of unnecessary gas leakage on inflation of the airbag is provided. In an airbag apparatus for a vehicle having an airbag inflated by a gas flowing out from an inflator when a deceleration of the vehicle exceeds a predetermined value for protecting an occupant in the vehicle, the inflator is held in the airbag and fixed to an elongated member with at least one end fixed to an inner surface of the airbag.
摘要:
Tip ends of hanging strings are connected to appropriate portions on an inner surface of an air bag having an opening portion mounted around an outer periphery of a gas generator, while base ends of the hanging strings are fixed to a retaining ring. The retaining ring is secured to a mounting base so as to clamp and fix the opening portion of the air bag between the retaining ring and the mounting base. When the air bag opening portion is to be fixed to another retaining ring, both the retaining rings for the hanging rings and the air bag opening portion are overlapped to each other and secured to the mounting base. This achieves a simplification in structure of an air bag system and in procedure of assembling the same.
摘要:
A steering wheel assembly has a steering shaft, a wheel ring, a support supporting the wheel ring on the steering shaft, and an air bag device supported on the support means radially inwardly of the wheel ring. The wheel ring has an upper half and a lower half which are positioned above and below, respectively, a transverse line passing through the steering shaft when the steering wheel is in a neutral position thereof. The support has a first support member supporting the upper half of the wheel ring and a second support member supporting the lower half of the wheel ring, the first support member having a greater rigidity than that of the second support member.
摘要:
A sheet-like article of polyvinyl chloride which is obtained by calendering a composition comprising polyvinyl chloride, a reactive plasticizer, a photosensitizer, a stabilizer and a polymerization inhibitor, and then irradiating the product with ultraviolet rays.
摘要:
System for controlling data transfer between a host system and storage devices. A virtualization controller implements the data transfer and includes first ports for connection with the storage devices, a second port for connection with the host system, a processor, and a memory configured to store volume mapping information which correlates first identification information used by the host system to access a first storage area in one of the storage devices, with second identification information for identifying the first storage area, the correlation being used by the processor to access the first storage area. When data stored in the first storage area is transferred to a second storage area, the processor correlates the first identification information with a third identification information for identifying the second storage area and registers the first identification information and the third identification information in the volume mapping information.
摘要:
A first free port present in a controller or a switch device is physically connected to a second free port present in a switch device (switch device in another storage device unit) other than the controller or switch device comprising the first free port. The possibility of logical connection via a physical path connecting the first free port and second free port is controlled.