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1. 发明申请

US20200302961A1 MAGNETIC DISK DEVICE HAVING MULTIPLE INDEPENDENT MOVING ACTUATORS 审中-公开
公开(公告)号：US20200302961A1
公开(公告)日：2020-09-24
申请号：US16556305
申请日：2019-08-30
申请人： Kabushiki Kaisha Toshiba , Toshiba Electronic Devices & Storage Corporation
发明人： Kazuya Takada , Jun Ichishima
IPC分类号： G11B5/55 , G11B19/04 , G11B20/18 , G11B27/36 , G06F3/06
摘要： According to one embodiment, a magnetic disk device includes a magnetic disk, a first magnetic head and a second magnetic head that are moved independently of each other, a first controller chip, a second controller chip, and a third memory. The first controller chip includes a first processor and a first memory, and controls the first magnetic head. The second controller chip includes a second processor and a second memory, and controls the second magnetic head. Management information is stored in the third memory. The first controller chip is connected to the third memory. The second controller chip is connected to the third memory via the first controller chip. The second controller chip saves the management information into the second memory.

2. 发明授权

US10102869B1 Magnetic disk device and read method 有权
公开(公告)号：US10102869B1
公开(公告)日：2018-10-16
申请号：US15916541
申请日：2018-03-09
申请人： Kabushiki Kaisha Toshiba , Toshiba Electronic Devices & Storage Corporation
发明人： Kazuya Takada , Kenji Yoshida
IPC分类号： G11B5/09 , G11B5/012 , G11B5/54 , G11B25/04 , G11B5/00
摘要： According to one embodiment, a magnetic disk device including a disk, a head which reads data from the disk, a memory which records data, and a controller which includes a table, and records, at a first time point at which a read gate is open, a first area number of a first area of the table in which first information related to first data is recorded, a first serial number of the first data added when the read gate is open, and a first count value of the first data, in the first area.

3. 发明授权

US11024336B1 Magnetic disk device and memory management method of magnetic disk device 有权
公开(公告)号：US11024336B1
公开(公告)日：2021-06-01
申请号：US17017880
申请日：2020-09-11
申请人： Kabushiki Kaisha Toshiba , Toshiba Electronic Devices & Storage Corporation
发明人： Naota Muguruma , Kenji Yoshida , Kazuya Takada
IPC分类号： G11B27/36 , G11B5/00 , G11B19/04 , G11B5/02
摘要： According to one embodiment, a magnetic disk device includes a magnetic disk, an actuator, a nonvolatile memory, and a controller. When a first determination condition of whether a total value of an amount of data for which execution completion has not been notified in one processing thread that executes a write command, the data having not been written to the magnetic disk, and an amount of the data for which execution completion has been notified in another processing thread that executes the write command, the data having not been written to the magnetic disk, is less than or equal to a capacity of the nonvolatile memory holds, the controller notifies the host of execution completion of the write command in the one processing thread.

4. 发明申请

US20230078768A1 MAGNETIC DISK DEVICE 有权
公开(公告)号：US20230078768A1
公开(公告)日：2023-03-16
申请号：US17652984
申请日：2022-03-01
申请人： Kabushiki Kaisha Toshiba , Toshiba Electronic Devices & Storage Corporation
发明人： Kimiyasu Aida , Kazuya Takada
IPC分类号： G11B5/55 , G11B5/02 , G11B27/36 , G06F3/06
摘要： According to one embodiment, a magnetic disk device incudes a first magnetic disk, a first actuator that reads/writes data from/to the first magnetic disk, a first controller that controls the first actuator, a second magnetic disk, a second actuator that reads/writes data from/to the second magnetic disk, a second controller that controls the second actuator, wherein the first controller executes read/write processing, and the second controller stores trace data of the read/write processing when the first controller executes the read/write processing.

5. 发明申请

US20140201427A1 STORAGE CONTROL APPARATUS, DATA STORAGE APPARATUS AND METHOD FOR STORAGE CONTROL 审中-公开
标题翻译：存储控制装置，数据存储装置和存储控制方法
公开(公告)号：US20140201427A1
公开(公告)日：2014-07-17
申请号：US13941239
申请日：2013-07-12
申请人： KABUSHIKI KAISHA TOSHIBA
发明人： Kazuya Takada , Kenji Yoshida , Hideo Shimokawa , Susumu Yamazaki
IPC分类号： G06F3/06
CPC分类号： G06F3/0611 , G06F3/0656 , G06F3/068
摘要： According to one embodiment, a storage control apparatus includes a first buffer controller and a second buffer controller. The first buffer controller is configured to store data of a first unit in each of data buffer regions, and the data of the first unit is transmitted from a host and written in a nonvolatile memory, or read from the nonvolatile memory and transmitted to the host. The second buffer controller is configured to independently transmit data of a second unit from the data buffer region corresponding to a bank prepared for transmission when data is written in the nonvolatile memory, and to independently transmit data of the second unit from a bank to be read to the data buffer region corresponding to the bank to be read when data is transmitted to the host.
摘要翻译：根据一个实施例，存储控制装置包括第一缓冲器控制器和第二缓冲器控制器。第一缓冲器控制器被配置为存储每个数据缓冲区中的第一单元的数据，并且第一单元的数据从主机发送并写入非易失性存储器中，或者从非易失性存储器读取并发送到主机。第二缓冲器控制器被配置为当数据被写入到非易失性存储器中时，从与准备传输的存储体对应的数据缓冲器区域独立地发送第二单元的数据，并且从要读取的存储体中独立地发送第二单元的数据当数据被发送到主机时，对应于要读取的存储体的数据缓冲器区域。

6. 发明申请

US20160321194A1 STORAGE DEVICE, CONTROLLER, AND CONTROL METHOD 审中-公开
标题翻译：存储设备，控制器和控制方法
公开(公告)号：US20160321194A1
公开(公告)日：2016-11-03
申请号：US14835410
申请日：2015-08-25
申请人： KABUSHIKI KAISHA TOSHIBA
发明人： Kazuya Takada , Kenji Yoshida
IPC分类号： G06F12/14 , H04L9/08
CPC分类号： G06F12/1408 , G06F2212/1052 , H04L9/0825 , H04L9/0833 , H04L9/0891 , H04L9/0894 , H04L2209/34
摘要： According to one embodiment, a storage device includes a storage medium configured to store second data groups including first data groups, each of the first data groups including user data encrypted with a common encryption key and first information concerned with the encryption key, and a controller configured to hold second information regarding a latest encryption key, read one of the first data groups included in one of the second data groups, compare the second information and the first information acquired from the one of the first data groups, and stop a read operation of reading the first data groups included in the second data groups upon the first information being different from the second information.
摘要翻译：根据一个实施例，存储设备包括存储介质，其被配置为存储包括第一数据组的第二数据组，每个第一数据组包括用公共加密密钥加密的用户数据和与加密密钥相关的第一信息，以及控制器被配置为保存关于最新加密密钥的第二信息，读取包括在第二数据组之一中的第一数据组之一，比较第二信息和从第一数据组之一获取的第一信息，并停止读操作当所述第一信息不同于所述第二信息时，读取包括在所述第二数据组中的所述第一数据组。

7. 发明申请

US20160027469A1 MAGNETIC DISK APPARATUS, CONTROLLER AND DATA PROCESSING METHOD 有权
标题翻译：磁盘设备，控制器和数据处理方法
公开(公告)号：US20160027469A1
公开(公告)日：2016-01-28
申请号：US14482117
申请日：2014-09-10
申请人： Kabushiki Kaisha Toshiba
发明人： Kazuya Takada , Kenji Yoshida
IPC分类号： G11B20/18 , G11B27/36
CPC分类号： G11B20/1879 , G11B20/10527 , G11B27/36 , G11B2020/148
摘要： According to one embodiment, a magnetic disk apparatus includes an RW channel with an internal memory for processing data to be read/written from/to a magnetic disk, a transfer controller for controlling data transfer between a host apparatus and the RW channel, and a processor for controlling the RW channel and transfer controller. The processor reads, from the magnetic disk, predetermined area data including to-be-rewritten data, subjects the read predetermined area data to error correction processing in the RW channel, and stores resultant data in the internal memory. The processor rewrites, with rewrite data from the host apparatus, the to-be-rewritten data of the predetermined area data stored in the internal memory to update the predetermined area data, adds an error correction code to the updated data in the RW channel module, and writes resultant data to the magnetic disk.
摘要翻译：根据一个实施例，一种磁盘装置包括具有用于处理从/从磁盘读/写数据的内部存储器的RW通道，用于控制主机设备和RW通道之间的数据传输的传送控制器，以及用于控制RW通道和传输控制器的处理器。处理器从磁盘读取包括被重写数据的预定区域数据，将读取的预定区域数据进行RW信道中的纠错处理，并将结果数据存储在内部存储器中。处理器利用来自主机装置的重写数据重写存储在内部存储器中的预定区域数据的被重写数据，以更新预定区域数据，向RW通道模块中的更新数据添加纠错码，并将结果数据写入磁盘。

8. 发明授权

US09576605B2 Magnetic disk apparatus and method for accessing data sector 有权
标题翻译：用于访问数据扇区的磁盘装置和方法
公开(公告)号：US09576605B2
公开(公告)日：2017-02-21
申请号：US14630496
申请日：2015-02-24
申请人： KABUSHIKI KAISHA TOSHIBA
发明人： Takashi Matsuo , Kenji Yoshida , Kazuya Takada , Yosuke Kondo
IPC分类号： G11B20/12 , G11B20/10 , G11B27/10
CPC分类号： G11B20/1217 , G11B20/10 , G11B20/10527 , G11B27/105 , G11B2020/10916 , G11B2020/1221 , G11B2020/1224 , G11B2020/1232 , G11B2020/1238
摘要： A magnetic disk apparatus includes a disk and a controller. The disk includes a plurality of tracks including a first track and a second track that is different from the first track. A plurality of data sectors are located on the tracks. The data sectors include short data sectors and long data sectors, each including a plurality of short data sectors. If the controller accesses a long data sector located at an end of the first track, the controller first accesses a short data sector of the long data sector at the end of the first track, and then accesses a short data sector of the long data sector at the beginning of the second track.
摘要翻译：磁盘装置包括盘和控制器。盘包括多个轨道，其包括与第一轨道不同的第一轨道和第二轨道。多个数据扇区位于轨道上。数据扇区包括短数据扇区和长数据扇区，每个包括多个短数据扇区。如果控制器访问位于第一磁道末端的长数据扇区，则控制器首先访问第一磁道末端的长数据扇区的短数据扇区，然后访问长数据扇区的短数据扇区在第二轨开始。

9. 发明授权

US09299387B2 Magnetic disk apparatus, controller and data processing method 有权
标题翻译：磁盘装置，控制器和数据处理方法
公开(公告)号：US09299387B2
公开(公告)日：2016-03-29
申请号：US14482117
申请日：2014-09-10
申请人： Kabushiki Kaisha Toshiba
发明人： Kazuya Takada , Kenji Yoshida
IPC分类号： G11B5/09 , G11B5/596 , G11B20/18 , G11B27/36 , G11B20/14
CPC分类号： G11B20/1879 , G11B20/10527 , G11B27/36 , G11B2020/148
摘要： According to one embodiment, a magnetic disk apparatus includes an RW channel with an internal memory for processing data to be read/written from/to a magnetic disk, a transfer controller for controlling data transfer between a host apparatus and the RW channel, and a processor for controlling the RW channel and transfer controller. The processor reads, from the magnetic disk, predetermined area data including to-be-rewritten data, subjects the read predetermined area data to error correction processing in the RW channel, and stores resultant data in the internal memory. The processor rewrites, with rewrite data from the host apparatus, the to-be-rewritten data of the predetermined area data stored in the internal memory to update the predetermined area data, adds an error correction code to the updated data in the RW channel module, and writes resultant data to the magnetic disk.
摘要翻译：根据一个实施例，一种磁盘装置包括具有用于处理从/从磁盘读/写数据的内部存储器的RW通道，用于控制主机设备和RW通道之间的数据传输的传送控制器，以及用于控制RW通道和传输控制器的处理器。处理器从磁盘读取包括被重写数据的预定区域数据，将读取的预定区域数据进行RW信道中的纠错处理，并将结果数据存储在内部存储器中。处理器利用来自主机装置的重写数据重写存储在内部存储器中的预定区域数据的被重写数据，以更新预定区域数据，向RW通道模块中的更新数据添加纠错码，并将结果数据写入磁盘。

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