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1. 发明授权

US06209107B1 Parity storage unit, in a disk array system, for generating updated parity data from received data records 失效
标题翻译：奇偶校验存储单元，在磁盘阵列系统中，用于从接收到的数据记录生成更新的奇偶校验数据
公开(公告)号：US06209107B1
公开(公告)日：2001-03-27
申请号：US09466849
申请日：1999-12-20
申请人： Akira Yamamoto , Toshihiko Tamiya , Hisashi Takamatsu , Akira Kurano , Hirofumi Inomata
发明人： Akira Yamamoto , Toshihiko Tamiya , Hisashi Takamatsu , Akira Kurano , Hirofumi Inomata
IPC分类号： G06F1108
CPC分类号： G06F11/1076 , G06F2211/1054
摘要： A disk array stores data records and parity records. The data records are transferred to the disk array through a control unit that is connected to a host processor. The disk array is part of a disk unit having a processor for generating parity records from information sent by the control unit to the disk unit. The parity record is generated and stored in the disk unit to reduce the number of data transfer operations between the control unit and the disk unit for storage systems using disk array disk units.
摘要翻译：磁盘阵列存储数据记录和奇偶校验记录。数据记录通过连接到主处理器的控制单元传送到磁盘阵列。磁盘阵列是具有处理器的盘单元的一部分，该处理器用于从由控制单元发送到盘单元的信息产生奇偶校验记录。奇偶校验记录被生成并存储在磁盘单元中，以减少使用磁盘阵列磁盘单元的存储系统的控制单元和磁盘单元之间的数据传送操作的数量。

2. 发明授权

US6032263A Parity storage unit, in a disk array system, for generating updated parity data from received data records 失效
公开(公告)号：US6032263A
公开(公告)日：2000-02-29
申请号：US76835
申请日：1998-05-13
申请人： Akira Yamamoto , Toshihiko Tamiya , Hisashi Takamatsu , Akira Kurano , Hirofumi Inomata
发明人： Akira Yamamoto , Toshihiko Tamiya , Hisashi Takamatsu , Akira Kurano , Hirofumi Inomata
IPC分类号： G06F3/06 , G06F11/08 , G06F11/10 , G06F12/16
CPC分类号： G06F11/1076 , G06F2211/1054
摘要： A disk array stores data records and parity records. The data records are transferred to the disk array through a control unit that is connected to a host processor. The disk array is part of a disk unit having a processor for generating parity records from information sent by the control unit to the disk unit. The parity record is generated and stored in the disk unit to reduce the number of data transfer operations between the control unit and the disk unit for storage systems using disk array disk units.

3. 发明授权

US5734812A Storage unit with parity generation function and storage systems using storage unit with parity generation analyzation 失效
标题翻译：具有奇偶生成功能的存储单元和使用具有奇偶校验生成分析的存储单元的存储系统
公开(公告)号：US5734812A
公开(公告)日：1998-03-31
申请号：US931923
申请日：1992-08-18
申请人： Akira Yamamoto , Toshihiko Tamiya , Hisashi Takamatsu , Akira Kurano , Hirofumi Inomata
发明人： Akira Yamamoto , Toshihiko Tamiya , Hisashi Takamatsu , Akira Kurano , Hirofumi Inomata
IPC分类号： G06F3/06 , G06F11/08 , G06F11/10 , G06F12/16 , G06F11/00
CPC分类号： G06F11/1076 , G06F2211/1054
摘要： A disk array stores data records and parity records. The data records are transferred to the disk array through a control unit that is connected to a host processor. The disk array is part of a disk unit having a processor for generating parity records from information sent by the control unit to the disk unit. The parity record is generated and stored in the disk unit to reduce the number of data transfer operations between the control unit and the disk unit for storage systems using disk array disk units.
摘要翻译：磁盘阵列存储数据记录和奇偶校验记录。数据记录通过连接到主处理器的控制单元传送到磁盘阵列。磁盘阵列是具有处理器的盘单元的一部分，该处理器用于从由控制单元发送到盘单元的信息产生奇偶校验记录。奇偶校验记录被生成并存储在磁盘单元中，以减少使用磁盘阵列磁盘单元的存储系统的控制单元和磁盘单元之间的数据传送操作的数量。

4. 发明授权

US06473867B2 Parity storage unit, in a disk array system, for generating updated parity data from received data records 失效
标题翻译：奇偶校验存储单元，在磁盘阵列系统中，用于从接收到的数据记录生成更新的奇偶校验数据
公开(公告)号：US06473867B2
公开(公告)日：2002-10-29
申请号：US09781437
申请日：2001-02-13
申请人： Akira Yamamoto , Toshihiko Tamiya , Hisashi Takamatsu , Akira Kurano , Hirofumi Inomata
发明人： Akira Yamamoto , Toshihiko Tamiya , Hisashi Takamatsu , Akira Kurano , Hirofumi Inomata
IPC分类号： G06F1108
CPC分类号： G06F11/1076 , G06F2211/1054
摘要： A disk array stores data records and parity records. The data records are transferred to the disk array through a control unit that is connected to a host processor. The disk array is part of a disk unit having a processor for generating parity records from information sent by the control unit to the disk unit. The parity record is generated and stored in the disk unit to reduce the number of data transfer operations between the control unit and the disk unit for storage systems using disk array disk units.
摘要翻译：磁盘阵列存储数据记录和奇偶校验记录。数据记录通过连接到主处理器的控制单元传送到磁盘阵列。磁盘阵列是具有处理器的盘单元的一部分，该处理器用于从由控制单元发送到盘单元的信息产生奇偶校验记录。奇偶校验记录被生成并存储在磁盘单元中，以减少使用磁盘阵列磁盘单元的存储系统的控制单元和磁盘单元之间的数据传送操作的数量。

5. 发明授权

US5826002A Parity storage unit, in a disk array system for generating updated parity data from received data records 失效
标题翻译：奇偶校验存储单元，用于从接收的数据记录中生成更新的奇偶校验数据的磁盘阵列系统
公开(公告)号：US5826002A
公开(公告)日：1998-10-20
申请号：US739441
申请日：1996-10-29
申请人： Akira Yamamoto , Toshihiko Tamiya , Hisashi Takamatsu , Akira Kurano , Hirofumi Inomata
发明人： Akira Yamamoto , Toshihiko Tamiya , Hisashi Takamatsu , Akira Kurano , Hirofumi Inomata
IPC分类号： G06F3/06 , G06F11/08 , G06F11/10 , G06F12/16 , G06F1/00
CPC分类号： G06F11/1076 , G06F2211/1054
摘要： A disk array stores data records and parity records. The data records are transferred to the disk array through a control unit that is connected to a host processor. The disk array is part of a disk unit having a processor for generating parity records from information sent by the control unit to the disk unit. The parity record is generated and stored in the disk unit to reduce the number of data transfer operations between the control unit and the disk unit for storage systems using disk array disk units.
摘要翻译：磁盘阵列存储数据记录和奇偶校验记录。数据记录通过连接到主处理器的控制单元传送到磁盘阵列。磁盘阵列是具有处理器的盘单元的一部分，该处理器用于从由控制单元发送到盘单元的信息产生奇偶校验记录。奇偶校验记录被生成并存储在磁盘单元中，以减少使用磁盘阵列磁盘单元的存储系统的控制单元和磁盘单元之间的数据传送操作的数量。

6. 发明授权

US06604172B2 Disk array device with selectable method for generating redundant data 失效
公开(公告)号：US06604172B2
公开(公告)日：2003-08-05
申请号：US10196293
申请日：2002-07-17
申请人： Eiju Katsuragi , Mikito Ogata , Akira Kurano , Toshihiko Tamiya , Akira Yamamoto , Naoya Takahashi
发明人： Eiju Katsuragi , Mikito Ogata , Akira Kurano , Toshihiko Tamiya , Akira Yamamoto , Naoya Takahashi
IPC分类号： G06F1216
CPC分类号： G06F11/1076 , G06F2211/1054 , G06F2211/1066
摘要： A disk array device selects a redundant generation method for reducing the overhead and improving the reliability associated with generating redundant data. The disk array device includes a disk controller connected to and controlling an array of disk drives. The disk controller includes a redundant data generator, a difference data generator, and a redundant data generation method selector. The redundant data generator is able to generate redundant data via a read and modify method and an all stripes method. The disk array device selects a method of generating redundant data from a method of read and modify and all stripes, and a method of generation in a drive and a method of difference, both of which are executed to generate redundant data on a disk drive. The disk array device selects the method of generating redundant data that will minimize the time required to process, transfer and store both the received host data and the generated redundant data based on the length of write data received from the host, an access pattern specified by the host, by the current load state of the disk drives, and by the existence of a failure state in a disk drive. Divided write data and previous data to be updated may be transferred depending on the write data length.

7. 发明授权

US06463505B2 Disk array device with selectable method for generating redundant data 有权
公开(公告)号：US06463505B2
公开(公告)日：2002-10-08
申请号：US09883179
申请日：2001-06-19
申请人： Eiju Katsuragi , Mikito Ogata , Akira Kurano , Toshihiko Tamiya , Akira Yamamoto , Naoya Takahashi
发明人： Eiju Katsuragi , Mikito Ogata , Akira Kurano , Toshihiko Tamiya , Akira Yamamoto , Naoya Takahashi
IPC分类号： G06F1216
CPC分类号： G06F11/1076 , G06F2211/1054 , G06F2211/1066
摘要： A disk array device selects a redundant generation method for reducing the overhead and improving the reliability associated with generating redundant data. The disk array device includes a disk controller connected to and controlling an array of disk drives. The disk controller includes a redundant data generator, a difference data generator, and a redundant data generation method selector. The redundant data generator is able to generate redundant data via a read and modify method and an all stripes method. The disk array device selects a method of generating redundant data from a method of read and modify and all stripes, and a method of generation in a drive and a method of difference, both of which are executed to generate redundant data on a disk drive. The disk array device selects the method of generating redundant data that will minimize the time required to process, transfer and store both the received host data and the generated redundant data based on the length of write data received from the host, an access pattern specified by the host, by the current load state of the disk drives, and by the existence of a failure state in a disk drive. Divided write data and previous data to be updated may be transferred depending on the write data length.

8. 发明授权

US06269424B1 Disk array device with selectable method for generating redundant data 失效
标题翻译：磁盘阵列设备，可选择生成冗余数据的方法
公开(公告)号：US06269424B1
公开(公告)日：2001-07-31
申请号：US08974535
申请日：1997-11-19
申请人： Eiju Katsuragi , Mikito Ogata , Akira Kurano , Toshihiko Tamiya , Akira Yamamoto , Naoya Takahashi
发明人： Eiju Katsuragi , Mikito Ogata , Akira Kurano , Toshihiko Tamiya , Akira Yamamoto , Naoya Takahashi
IPC分类号： G06F1216
CPC分类号： G06F11/1076 , G06F2211/1054 , G06F2211/1066
摘要： A disk array device selects a redundant data generation method for reducing the overhead and improving the reliability associated with generating redundant data. The disk array device includes a disk controller connected to and controlling an array of disk drives. The disk controller includes a redundant data generator, a difference data generator, and a redundant data generation method selector. The redundant data generator is able to generate redundant data via a read and modify method and an all stripes method. The disk array device selects a method of generating redundant data from a method of read and modify and all stripes, and a method of generation in a drive and a method of difference, both of which are executed to generate redundant data on a disk drive. The disk array device selects the method of generating redundant data that will minimize the time required to process, transfer and store both the received host data and the generated redundant data based on the length of write data received from the host, an access pattern specified by the host, by the current load state of the disk drives, and by the existence of a failure state in a disk drives. Divided write data and previous data to be updated may be transferred depending on the write data length.
摘要翻译：磁盘阵列设备选择用于减少开销并提高与生成冗余数据相关联的可靠性的冗余数据生成方法。磁盘阵列设备包括连接到并控制磁盘驱动器阵列的磁盘控制器。磁盘控制器包括冗余数据生成器，差分数据生成器和冗余数据生成方法选择器。冗余数据生成器能够通过读取和修改方法和全部条纹方法生成冗余数据。磁盘阵列装置从读取和修改的方法以及所有条带中选择产生冗余数据的方法，以及在驱动器中产生的方法和差异方法，这两者都被执行以在盘驱动器上生成冗余数据。磁盘阵列设备选择产生冗余数据的方法，该冗余数据将根据从主机接收到的写入数据的长度来最小化处理，传送和存储接收到的主机数据和生成的冗余数据所需的时间，由主机，当前的磁盘驱动器的加载状态，以及磁盘驱动器中是否存在故障状态。可以根据写入数据长度传送分割的写入数据和要更新的先前数据。

9. 发明授权

US06961816B2 Disk array device with selectable method for generating redundant data 失效
标题翻译：磁盘阵列设备，可选择生成冗余数据的方法
公开(公告)号：US06961816B2
公开(公告)日：2005-11-01
申请号：US10601892
申请日：2003-06-24
申请人： Eiju Katsuragi , Mikito Ogata , Akira Kurano , Toshihiko Tamiya , Akira Yamamoto , Naoya Takahashi
发明人： Eiju Katsuragi , Mikito Ogata , Akira Kurano , Toshihiko Tamiya , Akira Yamamoto , Naoya Takahashi
IPC分类号： G06F12/16 , G06F3/06 , G06F11/00 , G06F11/10 , G06F12/00 , G11B20/18
CPC分类号： G06F11/1076 , G06F2211/1054 , G06F2211/1066
摘要： A disk array device selects a redundant generation method for reducing the overhead and improving the reliability associated with generating redundant data. The disk array device includes a disk controller connected to and controlling an array of disk drives. The disk controller includes a redundant data generator, a difference data generator, and a redundant data generation method selector. The redundant data generator is able to generate redundant data via a read and modify method and an all stripes method. The disk array device selects a method of generating redundant data from a method of read and modify and all stripes, and a method of generation in a drive and a method of difference, both of which are executed to generate redundant data on a disk drive.
摘要翻译：磁盘阵列设备选择用于减少开销并提高与生成冗余数据相关联的可靠性的冗余生成方法。磁盘阵列设备包括连接到并控制磁盘驱动器阵列的磁盘控制器。磁盘控制器包括冗余数据生成器，差分数据生成器和冗余数据生成方法选择器。冗余数据生成器能够通过读取和修改方法和全部条纹方法生成冗余数据。磁盘阵列装置从读取和修改的方法以及所有条带中选择产生冗余数据的方法，以及在驱动器中产生的方法和差异方法，这两者都被执行以在盘驱动器上生成冗余数据。

10. 发明授权

US07082496B2 Cache control method and apparatus 失效
公开(公告)号：US07082496B2
公开(公告)日：2006-07-25
申请号：US10632840
申请日：2003-08-04
申请人： Akira Yamamoto , Shigeo Homma , Yoshihiro Asaka , Yoshiaki Kuwahara , Akira Kurano , Masafumi Nozawa , Hiroyuki Kitajima
发明人： Akira Yamamoto , Shigeo Homma , Yoshihiro Asaka , Yoshiaki Kuwahara , Akira Kurano , Masafumi Nozawa , Hiroyuki Kitajima
IPC分类号： G06F12/12
CPC分类号： G06F12/0866
摘要： In an information processing system having a data processing apparatus, a control unit for a cache memory, and a storage unit for storing a record, respectively interconnected together, wherein when the control unit receives from the data processing apparatus a write request for a record to be written and if the record to be written is not being stored in the cache memory, the control unit receives a data to be written in the object record from the data processing apparatus and stores the received data in the cache memory. After notifying the data processing apparatus of a completion of a data write process, the control unit checks if the object record in which the data stored in the cache memory is being stored in the storage unit, if the object record is being stored in the storage unit, the data in the cache memory is written in the storage unit, and if not, the data in the cache memory is not written and such effect is notified to the data processing apparatus.

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