Patent application number | Description | Published |
20080201392 | Storage system having plural flash memory drives and method for controlling data storage - Provided is a storage system having a storage device including memory drives formed of the non-volatile memory, a group is constituted by the memory drives whose number is larger than the number of memory drives necessary to provide the memory capacity, the divided storage areas are managed in each of segments that includes at least one of the divided storage areas, the data storage area or the temporary storage area is allocated to the divided storage areas, upon receiving a data write request, the data storage area in which the write data is written and the segment are specified, the updated data is written in the temporary storage area included in the specified segment, the temporary storage area in which the data is written is set as a new data storage area, and data stored in the data storage area is erased and set as a new temporary storage area. | 08-21-2008 |
20080244139 | DISK ARRAY SUBSYSTEM AND CONTROL METHOD THEREOF - This disk array subsystem includes a data input/output unit for inputting and outputting data in and from the network, a connecting unit for connecting the data input/output unit and a plurality of storage apparatuses, and a control unit for controlling the input and output of data in and from the network. The control unit includes a logical link setting unit for zoning at least one or more physical links among a plurality of physical links for inputting and outputting data between the data input/output unit and the connecting unit, or between the connecting unit and the connecting unit into at least one or more logical links, and setting a plurality of logical links to one physical link; and a link unit for simultaneously multiplexing the data to a plurality of the logical links set with the logical link setting unit, and linking the data to the physical link. | 10-02-2008 |
20090265584 | STORAGE CONTROL UNIT WITH CONTROL SIGNAL PATH BETWEEN COUPLED CONTROLLERS - Provided is a storage control unit capable of, even when a failure occurs in access from a control unit to storage devices and the access from the control unit to the storage devices is switched to access via an alternate path, continuing I/O access to the storage devices without interrupting I/O requests from a host. | 10-22-2009 |
20100058322 | Storage device and method of instructing to update firmware - Provided is a storage device which can increase the speed of transmission/reception of data and reliability thereof. The storage device including: a plurality of expanders connected to a disk device which stores data transmitted from a host device; and a controller unit for controlling the expander, wherein the controller unit includes a determination unit for determining whether or not, when download data is received from a predetermined terminal in order to update firmware of the expander, it is necessary to initialize a corresponding expander after downloading the download data by the expander, a transmission unit for transmitting initialization determining information determined by the determination unit to the terminal, and a update instruction unit for transmitting the download data to the corresponding expander and instructing the corresponding expander to update the firmware at a timing for updating the firmware, which is determined by the terminal based on the initialization determining information transmitted from the transmission unit. | 03-04-2010 |
20100115143 | STORAGE CONTROL SYSTEM, CONTROL METHOD FOR STORAGE CONTROL SYSTEM, PORT SELECTOR, AND CONTROLLER - An object of the present invention is to provide a means for detecting a logical command error, and a storage system and its control method that can properly perform error handling, and detection and blockage of a malfunctioning section. A storage control system includes controller units | 05-06-2010 |
20110138097 | COMPUTER SYSTEM FOR CONTROLLING ALLOCATION OF PHYSICAL LINKS AND METHOD THEREOF - The computer system of the present invention has a plurality of SAS target devices, an SAS initiator device, and a service delivery subsystem that is connected to each SAS target device by means of a physical link that is physical wiring and connected to the SAS initiator device by means of a wide link constituted by a plurality of physical links. The SAS initiator device controls how many physical links in the wide link are allocated to a particular SAS target device, whereby access from the SAS initiator device to the SAS target device is made via a physical link that is allocated to the SAS target device and is not made via a physical link that is not allocated to the SAS target device. | 06-09-2011 |
20120066420 | DISK ARRAY SUBSYSTEM AND CONTROL METHOD THEREOF - This disk array subsystem includes a data input/output unit for inputting and outputting data in and from the network, a connecting unit for connecting the data input/output unit and a plurality of storage apparatuses, and a control unit for controlling the input and output of data in and from the network. The control unit includes a logical link setting unit for zoning at least one or more physical links among a plurality of physical links for inputting and outputting data between the data input/output unit and the connecting unit, or between the connecting unit and the connecting unit into at least one or more logical links, and setting a plurality of logical links to one physical link; and a link unit for simultaneously multiplexing the data to a plurality of the logical links set with the logical link setting unit, and linking the data to the physical link. | 03-15-2012 |
20120254554 | COMPUTER SYSTEM AND COMPUTER SYSTEM MANAGEMENT METHOD - A computer system in which one or more host computers | 10-04-2012 |
20120311256 | COMPUTER SYSTEM FOR CONTROLLING ALLOCATION OF PHYSICAL LINKS AND METHOD THEREOF - The computer system of the present invention has a plurality of SAS target devices, an SAS initiator device, and a service delivery subsystem that is connected to each SAS target device by means of a physical link that is physical wiring and connected to the SAS initiator device by means of a wide link constituted by a plurality of physical links. The SAS initiator device controls how many physical links in the wide link are allocated to a particular SAS target device, whereby access from the SAS initiator device to the SAS target device is made via a physical link that is allocated to the SAS target device and is not made via a physical link that is not allocated to the SAS target device. | 12-06-2012 |
20130024639 | COMPUTER SYSTEM AND DATA MIGRATION METHOD THEREOF - Data migration can be preformed between source and target storage subsystems without stopping exchanging data between a host computer and each of the storage subsystems. | 01-24-2013 |
20130212345 | STORAGE SYSTEM WITH VIRTUAL VOLUME HAVING DATA ARRANGED ASTRIDE STORAGE DEVICES, AND VOLUME MANAGEMENT METHOD - A virtual LU astride a plurality of storage devices is a virtual volume composed of a plurality of partial volumes. Functions of the storage system, Zoning information of a SAN and a host group information of the virtual volume are inherited to a partial volume created for each physical device. When a page granularity data migration is executed, volume or data are migrated to other storage devices without depending on the relationship between a physical port and the physical device. When a host IO request is received when migration is on-going, response processing is performed by synchronizing storage devices within the range of migration data. The host IO request related to the page being migrated sends a partial complete response including information for re-routing the request to a path of the appropriate data migration destination device capable of issuing the IO. | 08-15-2013 |
20140351545 | STORAGE MANAGEMENT METHOD AND STORAGE SYSTEM IN VIRTUAL VOLUME HAVING DATA ARRANGED ASTRIDE STORAGE DEVICE - An administrator instructs creation of a volume to a virtual storage device and registration of a host port for providing access permission to the volume. The virtual storage device searches a candidate of a physical storage device capable of reaching the host port and a candidate of the target port based on the access permission information, and creates a distributed volume astride the candidate physical storage device. The distributed volume is composed of a plurality of partial volumes, and the partial volumes inherit the functions of the storage device and the access permission information set for the distributed volume. The virtual storage device distributes an access permission to the physical storage device, constitutes the access permission information of the host port and the volume with respect to the candidate target port, and registers the access permission information of the host port and the target port to the SAN switch. | 11-27-2014 |