Patent application number | Description | Published |
20090259812 | Storage system and data saving method - This storage system includes a plurality of data drives, a plurality of spare drives for storing data stored in at least one data drive among the plurality of data drives as save-target data, one or more RAID groups configured from the plurality of data drives, one or more spare RAID groups associated with the one or more RAID groups and configured from the plurality of spare drives, and a write unit to configured to write the save-target data into the plurality of spare drives configuring the one or more spare RAID groups in the order that the save-target data was read from the at least one data drive. | 10-15-2009 |
20100077106 | Storage subsystem and remote copy system using said subsystem - 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. Each of the plurality of cores processes the command to the logical unit to be handled by a self core based on the association information and executes I/O processing of the data to the logical unit. | 03-25-2010 |
20110197023 | CONTROLLING METHODS OF STORAGE CONTROL DEVICE AND VIRTUAL VOLUMES - The storage control device of this invention allocates the physical storage area in RAID groups to virtual volumes in units of chunks including multiple pages. | 08-11-2011 |
20110283123 | STORAGE APPARATUS AND CONTROL METHOD OF STORAGE SYSTEM - The present invention achieves appropriate power saving of the storage systems in accordance with the user's needs. In a storage system | 11-17-2011 |
20130275802 | STORAGE SUBSYSTEM AND DATA MANAGEMENT METHOD OF STORAGE SUBSYSTEM - Since the whole storage device is blocked according to the conventional data saving method when failure occurs to the storage device in a storage subsystem, so that when failure occurs to two storage devices at the same time within a same RAID group, double failure is caused and data loss occurs. In order to solve the problem, the present invention divides a storage device into storage areas of predetermined units, constructs RAID groups from two or more storage areas, and when failure occurs to the storage area, selects a data migration destination storage area from either the RAID group in which failure has occurred or the RAID group other than the RAID group in which failure has occurred, migrates the data stored in the storage area where failure has occurred to the selected data migration destination storage area, and blocks only the storage area where failure has occurred. | 10-17-2013 |
20130326140 | CONTROLLING METHODS OF STORAGE CONTROL DEVICE AND VIRTUAL VOLUMES - The storage control device of this invention allocates the physical storage area in RAID groups to virtual volumes in units of chunks including multiple pages. | 12-05-2013 |
20140331008 | CONTROLLING METHODS OF STORAGE CONTROL DEVICE AND VIRTUAL VOLUMES - The storage control device of this invention allocates the physical storage area in RAID groups to virtual volumes in units of chunks including multiple pages. | 11-06-2014 |