摘要:
A backup system having duplicated file system data and composed of a plurality of storage systems having different performances is provided, wherein a processing time required for backup of a small-sized file or an on-demand restoration of a file is reduced. A distributed backup system composed of a storage system and a plurality of backup units is equipped with a function for selecting a backup unit based on a plurality of performance indexes, and a requested data transfer size for performing backup or restoration is considered when performing the selection.
摘要:
Recently, along with the increase in the importance of data protection, there are increasing demands for constructing a computer system capable of protecting data even when widespread disaster occurs. In order to reduce the risk of data loss even when widespread disaster occurs, the present invention computes the risk of data loss for each replication relationship of data (combination of storage subsystems storing the same data), and allocates data so that the risks of losing data of all replication relationships are optimized.
摘要:
The present invention relates to a model animal spontaneously developing anemia. More specifically, the invention relates to a transgenic non-human mammal spontaneously developing anemia associated with a postnatal decrease in production of erythropoietin (Epo), Epo-producing cells prepared from the transgenic non-human mammal, and a screening method using the Epo-producing cells.
摘要:
Proposes the realization of the performance stability operation of virtual volumes and the stabilized access performance for the virtual volumes in the storage apparatus. In the storage apparatus which configures a pool of multiple types of storage tiers of different performances, provides virtual volumes to the host computer and, in accordance with a write request from an application to a virtual volume, assigns pages to the relevant virtual volume from the pool, a policy associating an application with the virtual volume with which the relevant application reads/writes data, a storage tier to assign pages to the relevant virtual volume, and the priority of the relevant storage tier is managed and, in accordance with a write request from the application, complying with the corresponding policy, among the storage tiers associated with the corresponding virtual volume, pages are assigned from the storage tier of the higher priority to the relevant virtual volume.
摘要:
A storage system has a plurality of flash packages, and a storage controller for receiving a write request from a host and sending a write-data write request based on data conforming to this write request to a write-destination flash package. A virtual capacity, which is larger than the physical capacity of the flash package, is defined in the storage controller. The storage system compresses the write data, and writes the compressed write data to the write-destination flash chip.
摘要:
The storage system includes a host computer; a management computer coupled to the host computer; a first storage device coupled to the host computer and the management computer, and including first port management information; and a second storage device coupled to the host computer, the management computer and the first storage device, and including second port management information. The first port management information and the second port management information include an identifier of a port on each storage device, an identifier of a volume in each storage device, an access restriction and an identifier of a port permitted access from the host computer to each storage device.
摘要:
A storage system comprises a plurality of flash packages comprising a plurality of flash chips, and a storage controller for receiving a first write request from a higher-level apparatus and sending a second write request of write data based on data conforming to this first write request to a write-destination flash package, and demonstrates a capacity virtualization function for causing a storage capacity to appear larger than an actual storage capacity for the higher-level apparatus, and for configuring a storage space using page units. The storage system generates a second VOL (logical volume) based on a first VOL, manages a plurality of VOLs comprising the first VOL and one or more second VOLs generated based on the first VOL as a VOL group, and allocates the same page to areas of the same address of the plurality of VOLs configuring the VOL group.
摘要:
A computer system including a management computer for managing the entire system, an integral apparatus, and a high-level connecting device for connecting the management computer and the integral apparatus is designed so that the management computer retains integral apparatus internal configuration information, configuration information about an integral apparatus to be introduced, that indicates the configuration of the integral apparatus that may possibly be introduced to the system, and lifetime information indicating lifetime of the integral apparatus; obtains connectivity guarantee information indicating whether connectivity between the computer and the storage apparatus is guaranteed or not; selects an integral apparatus to be removed from the system by referring to the lifetime information; selects an integral apparatus to be introduced to the system by referring to the integral apparatus internal configuration information, the configuration information about the integral apparatus to be introduced, and the connectivity guarantee information.
摘要:
In a storage system which includes a plurality of microprocessors, it is desired to prevent delay in I/O responses due to synchronous processing waiting for asynchronous processing, while still ensuring the throughput of asynchronous processing. In a plurality of microprocessors possessed by a controller, synchronous processors and asynchronous processors are mixed together. The synchronous processors are microprocessors whose duty is to perform synchronous processing and not to perform asynchronous processing. And the asynchronous processors are microprocessors whose duty is to perform asynchronous processing and not to perform synchronous processing.
摘要:
A double-faced pressure-sensitive adhesive sheet, including a first pressure-sensitive adhesive layer, and a second pressure-sensitive adhesive layer provided on one side of the aforementioned first pressure-sensitive adhesive layer, wherein a primary component of the first pressure-sensitive adhesive layer is a two-part acrylic pressure-sensitive adhesive (I), and a weight average molecular weight of the pertinent two-part acrylic pressure-sensitive adhesive (I) is 150,000-800,000, and wherein a primary component of the second pressure-sensitive adhesive layer is a two-part acrylic pressure-sensitive adhesive (II), and a weight average molecular weight of the pertinent two-part acrylic pressure-sensitive adhesive (II) is 900,000-2,000,000.