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1. 发明授权

US5369751A Disk cache control unit 失效
标题翻译：磁盘缓存控制单元
公开(公告)号：US5369751A
公开(公告)日：1994-11-29
申请号：US721928
申请日：1991-06-21
申请人： Kosaku Kambayashi , Katsunori Nakamura , Takao Satoh , Yoshihiro Asaka , Teruo Nagasawa
发明人： Kosaku Kambayashi , Katsunori Nakamura , Takao Satoh , Yoshihiro Asaka , Teruo Nagasawa
IPC分类号： G06F12/08 , G06F3/06 , G06F13/00
CPC分类号： G06F12/0866
摘要： A disk cache control unit disposed between an upper-rank processor and a disk unit, comprising a cache memory for holding a copy of data stored in the disk unit, at least one first interface controller which checks, in response to an input/output command requesting data to be read from the upper-rank processor, whether or not the data requested by the command is stored in the cache memory, and requests a head positioning of the disk unit when the data is not stored in the cache memory, and a second interface controller which indicates head positioning to the disk unit in response to a head positioning request, notifies the completion of the head positioning to the first interface controller in response to a notice of the completion of the head positioning, and which reads data from the disk unit and stores the data in the cache memory when a data transfer request did not come in a specified time period set to read data from the disk unit without a rotational delay after a notice of the head positioning head been given to the first interface controller and the subsequent transfer of data from the second interface controller had been completed, and which gives a notice of storage of the data in the cache memory through memory means to the first interface controller, and in response to this storage notice, the first interface controller reads the data from the cache memory and transfers the data to the upper-rank processor.
摘要翻译：布置在高级处理器和盘单元之间的盘缓存控制单元，包括用于保存存储在盘单元中的数据的副本的高速缓存存储器，至少一个第一接口控制器，其响应于输入/输出命令请求数据从高级处理器读取，无论命令所请求的数据是否存储在高速缓冲存储器中，并且当数据未存储在高速缓冲存储器中时请求磁盘单元的磁头定位，第二接口控制器，其响应于头部定位请求指示到盘单元的头部定位，响应于头部定位的完成的通知，将头部定位的完成通知给第一接口控制器，并且从第磁盘单元，并且当数据传输请求没有进入设置为在没有旋转延迟的情况下从盘单元读取数据的指定时间段内时，将数据存储在高速缓冲存储器中头部定位头已经被提供给第一接口控制器，并且随后从第二接口控制器传送数据已经完成，并且通过存储器装置将数据存储在高速缓冲存储器中通知给第一接口控制器，并且在响应于该存储通知，第一接口控制器从高速缓冲存储器读取数据并将数据传送到高级处理器。

2. 发明授权

US5475859A Disk cache unit having reduced waiting times for data transfer 失效
标题翻译：磁盘缓存单元具有减少数据传输的等待时间
公开(公告)号：US5475859A
公开(公告)日：1995-12-12
申请号：US231916
申请日：1994-04-25
申请人： Kosaku Kamabayashi , Katsunori Nakamura , Takao Satoh , Teruo Nagasawa
发明人： Kosaku Kamabayashi , Katsunori Nakamura , Takao Satoh , Teruo Nagasawa
IPC分类号： G06F12/08 , G06F3/06 , G06F13/00
CPC分类号： G06F12/0866
摘要： A disk cache control unit disposed between an upper-rank processor and a disk unit, comprising a cache memory for holding a copy of data stored in the disk unit, at least one first interface controller which checks, in response to an input/output command requesting data to be read from the upper-rank processor, whether or not the data requested by the command is stored in the cache memory, and requests a head positioning of the disk unit when the data is not stored in the cache memory, and a second interface controller which indicates head positioning to the disk unit in response to a head positioning request, notifies the completion of the head positioning to the first interface controller in response to a notice of the completion of the head positioning, and which reads data from the disk unit and stores the data in the cache memory when a data transfer request did not come in a specified time period set to read data from the disk unit without a rotational delay after a notice of the head positioning head been given to the first interface controller and the subsequent transfer of data from the second interface controller had been completed, and which gives a notice of storage of the data in the cache memory through memory means to the first interface controller, and in response to this storage notice, the first interface controller reads the data from the cache memory and transfers the data to the upper-rank processor.
摘要翻译：布置在高级处理器和盘单元之间的盘缓存控制单元，包括用于保存存储在盘单元中的数据的副本的高速缓存存储器，至少一个第一接口控制器，其响应于输入/输出命令请求数据从高级处理器读取，无论命令所请求的数据是否存储在高速缓冲存储器中，并且当数据未存储在高速缓冲存储器中时请求磁盘单元的磁头定位，第二接口控制器，其响应于头部定位请求指示到盘单元的头部定位，响应于头部定位的完成的通知，将头部定位的完成通知给第一接口控制器，并且从第磁盘单元，并且当数据传输请求没有进入设置为在没有旋转延迟的情况下从盘单元读取数据的指定时间段内时，将数据存储在高速缓冲存储器中头部定位头已经被提供给第一接口控制器，并且来自第二接口控制器的后续的数据传输已经完成，并且其通过存储器装置向第一接口控制器通知将数据存储在高速缓冲存储器中，并且在响应于该存储通知，第一接口控制器从高速缓冲存储器读取数据并将数据传送到高级处理器。

3. 发明授权

US06742093B2 Subsystem and method of reorganizing multiplexed data 失效
标题翻译：子系统和重组多路复用数据的方法
公开(公告)号：US06742093B2
公开(公告)日：2004-05-25
申请号：US10348783
申请日：2003-01-23
申请人： Hitoshi Shiozawa , Koji Ozawa , Takahisa Kimura , Kazuhito Suishu , Kosaku Kambayashi , Katsunori Nakamura
发明人： Hitoshi Shiozawa , Koji Ozawa , Takahisa Kimura , Kazuhito Suishu , Kosaku Kambayashi , Katsunori Nakamura
IPC分类号： G06F1200
CPC分类号： G06F11/2071 , Y10S707/99953 , Y10S707/99955
摘要： Disk units operable under control of different disk control units hold the same data. Under circumstances in which data is duplexed, when data is duplexed again after data that is generally saved as backup data was accessed for reading and writing, in order to efficiently duplex data, update places of both original data and sub-data updated during the duplexing of data is interrupted are registered on an access information management table of an original disk control unit. When the original disk control unit receives a duplexing resume command, the duplexing of data may be efficiently reorganized by copying original data corresponding to an access place produced during the duplexing is interrupted from information of the access information management table to the backup data or by copying the backup data to the original data.
摘要翻译：在不同磁盘控制单元的控制下可操作的磁盘单元保存相同的数据。在数据双工的情况下，当数据通常作为备份数据被保存作为备份数据被读取和写入时，再次进行数据双工时，为了有效地双工数据，更新原始数据和在双工过程中更新的子数据的位置的数据被中断登记在原始盘控制单元的访问信息管理表上。当原始磁盘控制单元接收到双工恢复命令时，可以通过将对应于在双工中产生的访问位置的原始数据复制到访问信息管理表的信息到备份数据或通过复制来复制数据的双工备份数据到原始数据。

4. 发明授权

US06615328B2 Subsystem and method of reorganizing multiplexed data 失效
公开(公告)号：US06615328B2
公开(公告)日：2003-09-02
申请号：US09982935
申请日：2001-10-22
申请人： Hitoshi Shiozawa , Koji Ozawa , Takahisa Kimura , Kazuhito Suishu , Kosaku Kambayashi , Katsunori Nakamura
发明人： Hitoshi Shiozawa , Koji Ozawa , Takahisa Kimura , Kazuhito Suishu , Kosaku Kambayashi , Katsunori Nakamura
IPC分类号： G06F1216
CPC分类号： G06F11/2071 , Y10S707/99953 , Y10S707/99955
摘要： Disk units operable under control of different disk control units hold the same data. Under circumstances in which data is duplexed, when data is duplexed again after data that is generally saved as backup data was accessed for reading and writing, in order to efficiently duplex data, update places of both original data and sub-data updated during the duplexing of data is interrupted are registered on an access information management table of an original disk control unit. When the original disk control unit receives a duplexing resume command, the duplexing of data may be efficiently reorganized by copying original data corresponding to an access place produced during the duplexing is interrupted from information of the access information management table to the backup data or by copying the backup data to the original data.

5. 发明授权

US5253351A Memory controller with a cache memory and control method of cache memory including steps of determining memory access threshold values 失效
标题翻译：具有高速缓冲存储器的存储器控制器和高速缓冲存储器的控制方法，包括确定存储器访问阈值的步
公开(公告)号：US5253351A
公开(公告)日：1993-10-12
申请号：US390832
申请日：1989-08-08
申请人： Akira Yamamoto , Toshiaki Tsuboi , Shigeo Honma , Hiroyuki Kitajima , Akira Kurano , Masafumi Nozawa , Katsunori Nakamura , Kosaku Kambayashi , Toshio Nakano , Yoshiro Shiroyanagi
发明人： Akira Yamamoto , Toshiaki Tsuboi , Shigeo Honma , Hiroyuki Kitajima , Akira Kurano , Masafumi Nozawa , Katsunori Nakamura , Kosaku Kambayashi , Toshio Nakano , Yoshiro Shiroyanagi
IPC分类号： G06F12/08 , G06F12/02
CPC分类号： G06F12/0866 , G06F12/0862 , G06F2212/6026
摘要： In a control unit having a external storage device, a method for selecting a loading method of data stored in the cache memory into the cache memory in accordance with an access pattern to the data, and an apparatus therefor are disclosed. The selection of the loading method is selection of control mode or procedure in accordance with the loading method, and it is attained by a learn function.

6. 发明授权

US06993636B2 Subsystem and method of organizing multiplexed data 失效
标题翻译：组织复用数据的子系统和方法
公开(公告)号：US06993636B2
公开(公告)日：2006-01-31
申请号：US10673578
申请日：2003-09-30
申请人： Hitoshi Shiozawa , Koji Ozawa , Takahisa Kimura , Kazuhito Suishu , Kosaku Kambayashi , Katsunori Nakamura
发明人： Hitoshi Shiozawa , Koji Ozawa , Takahisa Kimura , Kazuhito Suishu , Kosaku Kambayashi , Katsunori Nakamura
IPC分类号： G06F12/00
CPC分类号： G06F11/2071 , Y10S707/99953 , Y10S707/99955
摘要： Disk units operable under control of different disk control units hold the same data. Under circumstances in which data is duplexed, when data is duplexed again after data that is generally saved as backup data was accessed for reading and writing, in order to efficiently duplex data, update places of both original data and sub-data updated during the duplexing of data is interrupted are registered on an access information management table of an original disk control unit. When the original disk control unit receives a duplexing resume command, the duplexing of data may be efficiently reorganized by copying original data corresponding to an access place produced during the duplexing is interrupted from information of the access information management table to the backup data or by copying the backup data to the original data.
摘要翻译：在不同磁盘控制单元的控制下可操作的磁盘单元保存相同的数据。在数据双工的情况下，当数据通常作为备份数据被保存作为备份数据被读取和写入时，再次进行数据双工时，为了有效地双工数据，更新原始数据和在双工过程中更新的子数据的位置的数据被中断登记在原始盘控制单元的访问信息管理表上。当原始磁盘控制单元接收到双工恢复命令时，可以通过将对应于在双工中产生的访问位置的原始数据复制到访问信息管理表的信息到备份数据或通过复制来复制数据的双工备份数据到原始数据。

7. 发明授权

US07213114B2 Remote copy for a storage controller in a heterogeneous environment 有权
标题翻译：用于异构环境中的存储控制器的远程副本
公开(公告)号：US07213114B2
公开(公告)日：2007-05-01
申请号：US10917800
申请日：2004-08-12
申请人： Toshio Nakano , Katsunori Nakamura , Mikito Ogata , Yoshinori Okami , Seiichi Higaki , Hiroshi Abei , Shigeru Kishiro , Teruo Nagasawa , Takeshi Koide
发明人： Toshio Nakano , Katsunori Nakamura , Mikito Ogata , Yoshinori Okami , Seiichi Higaki , Hiroshi Abei , Shigeru Kishiro , Teruo Nagasawa , Takeshi Koide
IPC分类号： G06F12/00 , G06F15/167 , G06F3/00
CPC分类号： G06F11/2058 , G06F11/2082
摘要： Two data centers located in the vicinity are connected using a synchronous transfer copy function, and one of the data centers is coupled with a third data center disposed at a remote location by an asynchronous remote copying function. The order whereat a storage sub-system located in the vicinity has received data from a host is consistently guaranteed, and the third data center holds the data. Further, each storage sub-system includes a function whereby, during normal operation, data can be exchanged and the data update state can be obtained by the storage sub-systems located in the two data centers that do not directly engage in data transmission.
摘要翻译：位于附近的两个数据中心使用同步传送复制功能连接，并且其中一个数据中心通过异步远程复制功能与设置在远程位置的第三数据中心耦合。位于附近的存储子系统从主机接收到数据的顺序是一贯保证的，第三数据中心保存数据。此外，每个存储子系统包括在正常操作期间可以交换数据并且可以通过位于不直接参与数据传输的两个数据中心中的存储子系统来获得数据更新状态的功能。

8. 发明授权

US06240494B1 Subsystem replacement method 有权
标题翻译：子系统更换方法
公开(公告)号：US06240494B1
公开(公告)日：2001-05-29
申请号：US09212410
申请日：1998-12-16
申请人： Teruo Nagasawa , Takeshi Koide , Katsunori Nakamura
发明人： Teruo Nagasawa , Takeshi Koide , Katsunori Nakamura
IPC分类号： G06F1208
CPC分类号： G06F3/0607 , G06F3/0647 , G06F3/0683 , G06F3/0689 , G06F11/1423 , G06F11/2071 , G06F11/2082
摘要： In order to enable data migration between old and new subsystems to be performed under stopless operation, a plurality of first access paths are prepared between a CPU and an old CU (old subsystem) having an old VOL and a plurality of third access paths are set between the old CU and a new CU (new subsystem) having a new VOL. The connection is switched from the first access paths of the old subsystem as a replacement source to the second access paths of the new subsystem as a replacement destination on a plurality of occasions. When the CPU accesses the new subsystem via the second access paths on the new subsystem side during the connection change, a path replacement controller relays the access to the old subsystem via the third access paths and allows the access to be processed. Data migration from the old subsystem to the new subsystem is executed after all of the first access paths are switched to the second access paths.
摘要翻译：为了使旧系统和新子系统之间的数据迁移能够在无级运行下进行，在CPU和具有旧VOL的旧CU（旧子系统）和多个第三访问路径被设置之间准备多个第一访问路径在旧的CU和具有新的VOL的新的CU（新的子系统）之间。在多个场合，连接从作为替换源的旧系统的第一访问路径切换到新子系统的第二访问路径作为替换目的地。当CPU在连接更改期间通过新子系统侧的第二个访问路径访问新子系统时，路径更换控制器通过第三个访问路径中继对旧系统的访问，并允许访问进行处理。在将所有第一访问路径切换到第二访问路径之后，执行从旧子系统到新子系统的数据迁移。

9. 发明授权

US06647476B2 Subsystem replacement method 失效
标题翻译：子系统更换方法
公开(公告)号：US06647476B2
公开(公告)日：2003-11-11
申请号：US09742191
申请日：2000-12-22
申请人： Teruo Nagasawa , Takeshi Koide , Katsunori Nakamura
发明人： Teruo Nagasawa , Takeshi Koide , Katsunori Nakamura
IPC分类号： G06F1202
CPC分类号： G06F3/0607 , G06F3/0647 , G06F3/0683 , G06F3/0689 , G06F11/1423 , G06F11/2071 , G06F11/2082
摘要： In order to enable data migration between old and new subsystems to be performed under stopless operation, a plurality of first access paths and are prepared between a CPU and an old CU (old subsystem) having an old VOL and a plurality of third access paths and are set between the old CU and a new CU (new subsystem) having a new VOL. The connection is switched from the first access paths and of the old subsystem as a replacement source to the second access paths and of the new subsystem as a replacement destination on a plurality of occasions. When the CPU accesses the new subsystem via the second access paths and on the new subsystem side during the connection change, a path replacement controller relays the access to the old subsystem via the third access paths and and allows the access to be processed. Data migration from the old subsystem to the new subsystem is executed after all of the first access paths are switched to the second access paths.
摘要翻译：为了使得能够在无级操作下执行旧系统和新子系统之间的数据迁移，在CPU和具有旧VOL和多个第三接入路径的旧CU（旧系统）之间准备多个第一接入路径，以及设置在旧CU和具有新VOL的新CU（新子系统）之间。在多个场合，连接从作为替换源的第一访问路径和旧子系统切换到第二访问路径和新子系统作为替换目的地。当CPU在连接改变期间通过第二访问路径和新的子系统侧访问新的子系统时，路径更换控制器通过第三访问路径中继对旧的子系统的访问，并且允许访问被处理。在将所有第一访问路径切换到第二访问路径之后，执行从旧子系统到新子系统的数据迁移。

10. 发明授权

US07114049B2 Adaptive remote copy in a heterogeneous environment 有权
标题翻译：在异构环境中进行自适应远程复制
公开(公告)号：US07114049B2
公开(公告)日：2006-09-26
申请号：US10661373
申请日：2003-09-12
申请人： Kyosuke Achiwa , Takashi Oeda , Katsunori Nakamura , Teruo Nagasawa , Takeshi Koide
发明人： Kyosuke Achiwa , Takashi Oeda , Katsunori Nakamura , Teruo Nagasawa , Takeshi Koide
IPC分类号： G06F12/02
CPC分类号： G06F11/2074 , G06F11/2038 , G06F11/2058 , G06F11/2064 , G06F11/2071 , G06F11/2082
摘要： A storage apparatus system comprises first and second data storage systems. The first data storage systems can copy an image of data stored therein to the second data storage system without affecting access to storage in the first data storage system. In addition, failover processing is provided between the first and second data storage systems, wherein the second data storage system serves as the failover system.
摘要翻译：存储装置系统包括第一和第二数据存储系统。第一数据存储系统可以将存储在其中的数据的图像复制到第二数据存储系统，而不影响对第一数据存储系统中的存储的访问。另外，在第一和第二数据存储系统之间提供故障切换处理，其中第二数据存储系统用作故障切换系统。

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