公开(公告)号：US20070189137A1

公开(公告)日：2007-08-16

申请号：US11652387

申请日：2007-01-10

申请人： Takahiro Saito ,  Takayuki Yamaguchi ,  Atsushi Kanamaru ,  Wataru Ichihara

发明人： Takahiro Saito ,  Takayuki Yamaguchi ,  Atsushi Kanamaru ,  Wataru Ichihara

IPC分类号： G11B20/10

CPC分类号： G11B20/10527 ,  G11B27/105 ,  G11B2220/216 ,  G11B2220/2516

摘要： Embodiments in accordance with the present invention provide methods to record, in a rotating disk storage device, a data block in the unit of a logical sector on a recording medium on which a physical sector including a plurality of logical sectors is formatted. Extra addresses are acquired in a buffer to record write data blocks transferred from a host device. Data blocks are read from the recording medium in the unit of a physical sector. A skip read section discards data blocks having the same data blocks as the write data blocks by removing them from the read data blocks, and sends the remaining data blocks to the buffer. The buffer stores the data blocks in the order of recording in a physical sector.

摘要翻译： 根据本发明的实施例提供了在旋转盘存储装置中在其上包括多个逻辑扇区的物理扇区被格式化的记录介质上以逻辑扇区为单位记录数据块的方法。 在缓冲器中获取附加地址以记录从主机设备传送的写入数据块。 数据块以物理扇区为单位从记录介质读取。 跳过读取部分通过从读取的数据块中移除与写入数据块相同的数据块来丢弃数据块，并将剩余的数据块发送到缓冲器。 缓冲器按照物理扇区中的记录顺序存储数据块。

公开(公告)号：US06957311B2

公开(公告)日：2005-10-18

申请号：US10269206

申请日：2002-10-11

申请人： Atsushi Kanamaru ,  Koichi Kushida ,  Takahiro Saito

发明人： Atsushi Kanamaru ,  Koichi Kushida ,  Takahiro Saito

IPC分类号： G06F3/06 ,  G06F12/08 ,  G06F12/12 ,  G06F12/00

CPC分类号： G06F12/0868

摘要： A method and apparatus for efficiently executing a read request issued from a host computer when write requests are cached in a cache memory.

摘要翻译： 当写入请求被高速缓存在高速缓冲存储器中时，用于有效地执行从主计算机发出的读取请求的方法和装置。

公开(公告)号：US20050166014A1

公开(公告)日：2005-07-28

申请号：US11031494

申请日：2005-01-07

申请人： Hiromi Kobayashi ,  Atsushi Kanamaru ,  Takahiro Saito

发明人： Hiromi Kobayashi ,  Atsushi Kanamaru ,  Takahiro Saito

IPC分类号： G06F3/06 ,  G06F12/00

CPC分类号： G06F3/0659 ,  G06F3/0611 ,  G06F3/0676

摘要： Embodiments of the invention raise the performance of a HDD by controlling the timing of notifying of command completion. In one embodiment, transmission of command completion notifications to a host is managed by a host interface manager. If two data write addresses respectively for two queued commands are adjacent or near to each other, that is, these addresses on the magnetic disk can be accessed without rotational latency, the host interface manager postpones the transmission of a command completion notification (X) concerning the first write command (X). Two command completion notifications (X) and (Y) are performed at a time after the write data (Y) for the next command is transmitted and its write to the medium is completed.

摘要翻译： 本发明的实施例通过控制指令完成通知的定时来提高HDD的性能。 在一个实施例中，主机接口管理器管理向主机发送命令完成通知。 如果两个排队命令的两个数据写入地址彼此相邻或相邻，也就是磁盘上的这些地址可以无转动等待时间被访问，主机接口管理器推迟发送命令完成通知（X） 第一个写命令（X）。 在发送下一个命令的写入数据（Y）并且其对介质的写入完成之后的时刻执行两个命令完成通知（X）和（Y）。

公开(公告)号：US06725395B2

公开(公告)日：2004-04-20

申请号：US09754678

申请日：2001-01-04

申请人： Hiroyuki Ono ,  Hideo Asano ,  Atsushi Kanamaru

发明人： Hiroyuki Ono ,  Hideo Asano ,  Atsushi Kanamaru

IPC分类号： G06F1108

CPC分类号： G11B20/1883 ,  G11B20/1258 ,  G11B2220/20

摘要： A method and apparatus for minimizing performance degradation resulting from reassignment of data to alternate sectors as a result of a defect within the original sector. For example, when a request for writing data “a” into a sector A is made but the data is written into an alternative sector A′ in an alternative sector area X because the sector A is defective. Therefore, when a write request for writing data “b” into a sector B is made subsequently, re-assignment is performed to a sector B′ subsequent to the alternative sector A′. Similarly, a defective sector C for which a request for writing data “c” is made is re-assigned an alternative sector C′. Thus, the successive data a, b, and c are written into the successive sectors A′, B′, and C′ in the same alternative sector area X, minimizing performance degradation.

摘要翻译： 一种用于最小化由于原始扇区内的缺陷而将数据重新分配给替代扇区所导致的性能下降的方法和装置。例如，当将数据“a”写入扇区A但是写入数据时 由于扇区A是有缺陷的，所以成为替代扇区区域X'中的替代扇区A'。 因此，当随后进行写入数据“b”的写入请求时，对替代扇区A'之后的扇区B'进行重新分配。 类似地，对写入数据“c”的请求的缺陷扇区C被重新分配替代扇区C'。 因此，连续数据a，b和c被写入相同替代扇区区域X中的连续扇区A'，B'和C'中，使性能下降最小化。

公开(公告)号：US06654852B2

公开(公告)日：2003-11-25

申请号：US09772263

申请日：2001-01-29

申请人： Atsushi Kanamaru ,  Takashi Kuroda ,  Hiromi Nishimiya ,  Takahiro Saito ,  Hiroshi Uchiike

发明人： Atsushi Kanamaru ,  Takashi Kuroda ,  Hiromi Nishimiya ,  Takahiro Saito ,  Hiroshi Uchiike

IPC分类号： G06F1200

CPC分类号： G06F3/061 ,  G06F3/064 ,  G06F3/0659 ,  G06F3/0676

摘要： The present invention includes a method of reading and writing data on a recording medium, and a system including a disk drive apparatus and a disk drive apparatus controller. According to the method of the present invention, data can be read in the middle of a plurality of write commands provided that the addresses of the read/write data locations do not overlap. This method and system results in improved read/write times.

摘要翻译： 本发明包括在记录介质上读取和写入数据的方法，以及包括盘驱动装置和盘驱动装置控制器的系统。 根据本发明的方法，只要读/写数据位置的地址不重叠，就可以在多个写入命令的中间读取数据。 该方法和系统可以改善读/写时间。

公开(公告)号：US06636985B1

公开(公告)日：2003-10-21

申请号：US09591257

申请日：2000-06-09

申请人： Hiroyuki Ono ,  Hideo Asano ,  Atsushi Kanamaru

发明人： Hiroyuki Ono ,  Hideo Asano ,  Atsushi Kanamaru

IPC分类号： G06F1122

CPC分类号： G11B20/1816 ,  G11B20/1883 ,  G11B2220/20

摘要： A disk storage device is disclosed for avoiding the instantaneous performance degradation as much as possible, and a method for processing a defective sector in such a disk storage device. There is executed a predetermined check related to a function of the disk storage device, preferably at least one of a read test, a write servo test, or a write test, when the disk storage device is in a waiting state where the disk storage device has no access from a host. The read test and write servo test are used to search for a defective sector on a disk and reassign the defective sector. The write test is used to indicate an abnormal condition of a head. Furthermore, the disk storage device includes a detector for detecting the waiting state, and a check logic for executing a predetermined check.

摘要翻译： 公开了一种用于尽可能避免瞬时性能下降的盘存储装置，以及用于处理这种盘存储装置中的缺陷扇区的方法。 当磁盘存储装置处于盘存储装置的等待状态时，执行与磁盘存储装置的功能相关的预定检查，优选地是读取测试，写入伺服测试或写入测试中的至少一个 无法从主机访问。 读取测试和写入伺服测试用于搜索磁盘上的故障扇区并重新分配缺陷扇区。 写入测试用于指示头部的异常状况。 此外，磁盘存储装置包括用于检测等待状态的检测器和用于执行预定检查的检查逻辑。

公开(公告)号：US06622206B1

公开(公告)日：2003-09-16

申请号：US09591020

申请日：2000-06-09

申请人： Atsushi Kanamaru ,  Hideo Asano ,  Tetsuo Ueda

发明人： Atsushi Kanamaru ,  Hideo Asano ,  Tetsuo Ueda

IPC分类号： G06F1200

CPC分类号： G06F3/0613 ,  G06F3/0656 ,  G06F3/0676 ,  G06F12/0866

摘要： A method and system are disclosed to prevent significant degradation of a data transfer rate in write cache transfer, thereby keeping the minimum data transfer rate high. The initial value Ti of the virtual buffer full capacity T(tx) is set to F/N (where F is a data capacity of the buffer, and N>1) and it is determined if the amount of write cached data S(tx) reaches the virtual buffer full capacity T(tx) so that write cache transfer is enabled during an S(tx)

摘要翻译： 公开了一种方法和系统，以防止写入高速缓存传送中的数据传输速率的显着劣化，从而保持最小的数据传输速率。 虚拟缓冲器满容量T（tx）的初始值Ti被设置为F / N（其中F是缓冲器的数据容量，N> 1），并且确定写入缓存数据量S（tx ）达到虚拟缓冲器满容量T（tx），使得在S（tx）

公开(公告)号：US6041392A

公开(公告)日：2000-03-21

申请号：US49680

申请日：1998-03-27

申请人： Atsushi Kanamaru ,  Toshio Kakihara ,  Yuhji Kigami ,  Takahiro Saitoh

发明人： Atsushi Kanamaru ,  Toshio Kakihara ,  Yuhji Kigami ,  Takahiro Saitoh

IPC分类号： G06F3/06 ,  G06F12/08

CPC分类号： G06F12/0866

摘要： A disk drive and a method for controlling the disk drive in which an additional read from a medium can be performed as needed while minimizing the command overhead to the minimum. In a disk drive device 10, even if a read command is issued, and all the required data is stored in the cache memory such that the data transfer can be performed without the intervention of a local MPU 16, a HIC 15 performs the data transfer so as to leave the last one block and waits for the intervention of the local MPU 16. The local MPU 16 provides instructions to transfer the last one block when the preparation for the command termination is completed, and if a plurality of blocks of data to be transferred are remaining when the local MPU 16 instructs the HIC 15 to transfer the last one block, the HIC 15 executes all the data transfer without stopping the data transfer before the last one block, completing the command.

摘要翻译： 一种磁盘驱动器和一种用于控制磁盘驱动器的方法，其中可以根据需要执行从介质的附加读取，同时使命令开销最小化至最小。 在磁盘驱动装置10中，即使发出了读取命令，并且将所有需要的数据存储在高速缓冲存储器中，使得可以在不用本地MPU 16的介入的情况下执行数据传送，HIC15执行数据传送 以便离开最后一个块并等待本地MPU 16的干预。当完成命令终止的准备时，本地MPU 16提供传送最后一个块的指令，并且如果多个数据块到 当本地MPU16指示HIC 15传送最后一个块时，HIC 15执行所有数据传输，而不停止在最后一个块之前的数据传输，完成该命令。

公开(公告)号：US07451261B2

公开(公告)日：2008-11-11

申请号：US11317029

申请日：2005-12-22

申请人： Takahiro Saito ,  Takayuki Yamaguchi ,  Atsushi Kanamaru ,  Hiromi Kobayashi

发明人： Takahiro Saito ,  Takayuki Yamaguchi ,  Atsushi Kanamaru ,  Hiromi Kobayashi

IPC分类号： G06F12/00 ,  G06F5/00

CPC分类号： G11B20/10527 ,  G06F3/0611 ,  G06F3/0656 ,  G06F3/0676 ,  G06F12/0866 ,  G11B5/09 ,  G11B2020/10666 ,  G11B2020/10722 ,  G11B2020/10759 ,  G11B2220/2516

摘要： Embodiments of the invention improve the cache hit ratio of read data. A hard disk drive (HDD) according to an embodiment of the present invention determines whether the read buffer should be used in its entirety or the partial continuous space should be used to read read-data from the magnetic disk. When the HDD determines use of the partial continuous space, the HDD specifies the sub-buffer which is a continuous space wherein the leading-end position and the trailing-end position are coupled to each other, and executes data writing to the sub-buffer in parallel with data reading from the sub-buffer and transmission thereof to the host. The sub-buffer capacity coincides with the data length of the back data.

摘要翻译： 本发明的实施例提高读取数据的高速缓存命中率。 根据本发明的实施例的硬盘驱动器（HDD）确定读缓冲器是否应被整体使用，或者部分连续空间应用于从磁盘读取读取数据。 当HDD确定使用部分连续空间时，HDD指定作为连续空间的子缓冲器，其中前端位置和后端位置彼此耦合，并且执行对子缓冲器的数据写入 与从子缓冲器的数据读取并将其传输到主机并行。 子缓冲器容量与背面数据的数据长度一致。

公开(公告)号：US20060218437A1

公开(公告)日：2006-09-28

申请号：US11388640

申请日：2006-03-23

申请人： Tadahisa Kawa ,  Atsushi Kanamaru ,  Tsuguaki Kowa

发明人： Tadahisa Kawa ,  Atsushi Kanamaru ,  Tsuguaki Kowa

IPC分类号： G06F11/00

CPC分类号： G11B20/18 ,  G11B19/044 ,  G11B2020/10777 ,  G11B2220/2516

摘要： Data in a nonvolatile memory included in a data storage device is rewritten with higher security. According to one embodiment of the present invention, if an error is included in data stored in a nonvolatile semiconductor memory, the HDD rewrites correct data to the nonvolatile semiconductor memory. In particular, during the execution sequence of a write command, the HDD executes rewrite processing of control data stored in the nonvolatile semiconductor memory. More specifically, data is rewritten during a specified period of time that falls within a period of time starting from a start notification of write-data transfer processing that is sent from the HDD to the host, until a command completion notification. Since there is a very small possibility that the power of the host may be interrupted during this specified period of time, it is possible to securely rewrite data.