| Patent Number |
Title Of Patent |
Date Issued |
| 8190822 |
Storage control unit and data management method |
May 29, 2012 |
| An I/O processor determines whether or not the amount of dirty data on a cache memory exceeds a threshold value and, if the determination is that this threshold value has been exceeded, writes a portion of the dirty data of the cache memory to a storage device. If a power source moni |
| 7941693 |
Disk array apparatus and method for controlling the same |
May 10, 2011 |
| A disk array apparatus capable of reducing a disk drive fault rate where a time-out failure has occurred. The disk array apparatus includes a plurality of disk drives, and a control unit for performing data input/output processing of the disk drives in response to a data input/output |
| 7870338 |
Flushing cached data upon power interruption |
January 11, 2011 |
| An I/O processor determines whether or not the amount of dirty data on a cache memory exceeds a threshold value and, if the determination is that this threshold value has been exceeded, writes a portion of the dirty data of the cache memory to a storage device. If a power source moni |
| 7650480 |
Storage system and write distribution method |
January 19, 2010 |
| A storage system includes: a flash disk having a plurality of flash memory units; a management table for hierarchically managing the write life of each flash memory unit on a specified storage area basis; and a controller for hierarchically distributing write-processing to the flash |
| 7607035 |
Disk array apparatus and method for controlling the same |
October 20, 2009 |
| A disk array apparatus capable of reducing a disk drive fault rate where a time-out failure has occurred. The disk array apparatus includes a plurality of disk drives, and a control unit for performing data input/output processing of the disk drives in response to a data input/output |
| 7568119 |
Storage control device and storage control device path switching method |
July 28, 2009 |
| The invention verifies the validity of instructions transmitted between controllers without complicating the structure of the electrical connection between controllers. The initial setup detection unit detects whether an initial setup of the lower communications network has been comp |
| 7373208 |
Control apparatus and control method |
May 13, 2008 |
| Each of controllers includes: a transistor; a data processor for executing predetermined data processing and turning the transistor on or off in accordance with the data processing result; a pull-up resistor connected to an output terminal of the transistor; and a level separating resist |
| 7111087 |
Storage control system and operating method for storage control system |
September 19, 2006 |
| Each disk enclosure 117 contains an ENC bypass 113A for a disk connector 111A, and PBC 101A and 103A, which perform selective switching to transfer data via either the disk connector 111A or the ENC bypass 113A. When the occurrence of an anomaly in the disk connector 111A is detected, |
| 7003637 |
Disk array device with utilization of a dual-bus architecture dependent on data length of cache |
February 21, 2006 |
| In a disk control device arranged to include a CPU, a plurality of channel control units, a plurality of disk control units, a cache memory, and a data transfer integrated circuit communicably connected to the cache memory via a plurality of data buses, when receiving a request for acces |
