公开(公告)号：US20110167203A1

公开(公告)日：2011-07-07

申请号：US13036662

申请日：2011-02-28

申请人： Kenji YOSHIDA ,  Tomonori MASUO ,  Shuichi ISHII ,  Kunio UTSUKI ,  Kazuya TAKADA

发明人： Kenji YOSHIDA ,  Tomonori MASUO ,  Shuichi ISHII ,  Kunio UTSUKI ,  Kazuya TAKADA

IPC分类号： G06F12/08 ,  G06F12/00

CPC分类号： G06F12/0866 ,  G06F12/0804

摘要： According to one embodiment, a data storage device is provided, which has a cache controller that performs cache control, by using a buffer memory divided into segments, which are managed. The cache controller performs sequential hit judge on each segment, in accordance with the requested access range designated by a read or write command coming from a host system. The cache controller updates the hit upper-limit LBA set for each segment if the result of the hit judge is a mishit.

公开(公告)号：US20110022774A1

公开(公告)日：2011-01-27

申请号：US12784159

申请日：2010-05-20

申请人： Kazuya TAKADA ,  Kenji YOSHIDA

发明人： Kazuya TAKADA ,  Kenji YOSHIDA

IPC分类号： G06F12/08 ,  G06F12/00

CPC分类号： G06F12/0871 ,  G06F2212/462

摘要： According to a cache memory control method of an embodiment, a data write position in a segment of a cache memory is changed to an address to which a lower bit of a logical block address of write data is added as an offset. Then, even if writing is completed within the segment of the cache memory, the remaining regions of the segment is not wasted.

摘要翻译： 根据实施例的高速缓冲存储器控制方法，将高速缓冲存储器的段中的数据写入位置改变为写入数据的逻辑块地址的较低位作为偏移的地址。 然后，即使在高速缓冲存储器的段内完成写入，也不浪费段的剩余区域。

公开(公告)号：US20110264948A1

公开(公告)日：2011-10-27

申请号：US13005846

申请日：2011-01-13

申请人： Kazuya TAKADA ,  Kenji Yoshida

发明人： Kazuya TAKADA ,  Kenji Yoshida

IPC分类号： G06F11/16

CPC分类号： G11B20/1803

摘要： According to one embodiment, a disk storage apparatus includes a write module, an operation module, and a controller. The write module is configured to write data, in units of blocks, in a designated write area of a disk. The operation module is configured to perform an exclusive OR operation on the blocks of data. The controller is configured to control the write module, causing the write module to write, in a designated block, recovery data that is a result of the exclusive OR operation on all data blocks written in the designated write area.

摘要翻译： 根据一个实施例，盘存储装置包括写入模块，操作模块和控制器。 写入模块被配置为以块为单位将数据写入盘的指定写入区域。 操作模块被配置为对数据块执行异或运算。 控制器被配置为控制写入模块，使得写入模块在指定的块中写入作为对写入指定的写入区域中的所有数据块进行异或运算的结果的恢复数据。