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1. 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。

2. 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。

3. 发明授权

US07200729B2 Subsystem replacement method 有权
标题翻译：子系统更换方法
公开(公告)号：US07200729B2
公开(公告)日：2007-04-03
申请号：US11170152
申请日：2005-06-30
申请人： Teruo Nagasawa , Takeshi Koide , Katsunori Nakamura
发明人： Teruo Nagasawa , Takeshi Koide , Katsunori Nakamura
IPC分类号： G06F11/14
CPC分类号： G06F3/0607 , G06F3/0647 , G06F3/0683 , G06F3/0689 , G06F11/1423 , G06F11/2071 , G06F11/2082
摘要： A storage system which includes a first storage device, and a storage control device connected to a higher level device and the first storage device. The storage control device controls reading or writing of data from or to the higher level device to or from the storage control device. The storage control device can be connected to another storage control device, and can acquire device information of the other storage control device.
摘要翻译：一种存储系统，包括第一存储装置和连接到较高级装置的存储控制装置和第一存储装置。存储控制装置控制向或从存储控制装置读取或写入上位装置的数据。存储控制装置可以连接到另一个存储控制装置，并且可以获取另一个存储控制装置的装置信息。

4. 发明授权

US06684306B1 Data backup in presence of pending hazard 失效
标题翻译：数据备份存在待处理危险
公开(公告)号：US06684306B1
公开(公告)日：2004-01-27
申请号：US09616829
申请日：2000-07-14
申请人： Teruo Nagasawa , Takahisa Kimura , Takeshi Koide
发明人： Teruo Nagasawa , Takahisa Kimura , Takeshi Koide
IPC分类号： G06F1200
CPC分类号： G06F11/1456 , G06F11/1458 , G06F11/1461
摘要： According to the present invention, techniques for performing real time backup of data in the presence of a pending hazard, such as a natural disaster, or the like are disclosed. Embodiments of the invention provide data storage controllers, networked data storage systems, methods and the like, that detect imminent hazardous conditions and alter backup behavior to provide greater integrity of backed up data. In a representative embodiment according to the present invention, update of the primary data is temporarily suspended after the recognition of a probable occurrence of a hazardous event. By suspending updating the primary data temporarily, the increase of un-updated secondary data can be prevented, so that lost data is decreased. Then, the un-updated secondary data can be updated quickly or exclusively, in order to avoid un-updated secondary data.
摘要翻译：根据本发明，公开了在存在诸如自然灾害等未决危险的情况下进行数据的实时备份的技术。本发明的实施例提供数据存储控制器，网络数据存储系统，方法等，其检测即将发生的危险状况并改变备份行为以提供更高的备份数据的完整性。在根据本发明的代表性实施例中，在识别到可能发生危险事件之后，主要数据的更新被暂时中止。通过暂时更新主数据，可以防止未更新的次要数据的增加，从而减少丢失的数据。然后，可以快速或排他地更新未更新的次要数据，以避免未更新的次要数据。

5. 发明授权

US06988176B2 Method and apparatus for data duplexing in storage unit system 失效
公开(公告)号：US06988176B2
公开(公告)日：2006-01-17
申请号：US10436928
申请日：2003-05-12
申请人： Tooru Suzuki , Katsunori Nakamura , Teruo Nagasawa , Takahisa Kimura , Takeshi Koide
发明人： Tooru Suzuki , Katsunori Nakamura , Teruo Nagasawa , Takahisa Kimura , Takeshi Koide
IPC分类号： G06F12/16
CPC分类号： G06F11/2074 , G06F11/2064 , G06F2201/835 , Y10S707/99953 , Y10S707/99955
摘要： With the purpose of achieving consistent non-synchronous copying of data from a plurality of primary side control units to a plurality of secondary side control units, all of the secondary side control units are connected via a loop, and each of the secondary side control units determines guarantee time by circulating a time added to the data received from the primary side control units via said loop communication route. A consistent data copying is guaranteed by circulating the determined guarantee time via the loop communication route.

6. 发明申请

US20050120093A1 Remote copy for a storgae 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复制
公开(公告)号：US20050120093A1
公开(公告)日：2005-06-02
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： G06F11/20 , G06F15/16 , G06F12/00
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。

7. 发明申请

US20050021627A1 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：US20050021627A1
公开(公告)日：2005-01-27
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： G06F11/20 , G06F15/16
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。

8. 发明授权

US06584473B2 Information storage system 失效
标题翻译：信息存储系统
公开(公告)号：US06584473B2
公开(公告)日：2003-06-24
申请号：US09429400
申请日：1999-10-28
申请人： Takahisa Kimura , Takeshi Koide , Yasushi Saitsu , Teruo Nagasawa
发明人： Takahisa Kimura , Takeshi Koide , Yasushi Saitsu , Teruo Nagasawa
IPC分类号： G06F1730
CPC分类号： G06F11/2064 , G06F11/2074 , Y10S707/99952
摘要： By assuring and maintaining consistency of data within a range expected by the user, significance of the consistency of data is assured. A master control unit 105 to which write data and its write time is transferred from an information processor 100 is provided with a function of obtaining the latest write time and the oldest write time of write data which has not been copied to each of remote control units 115 as a copy destination at proper timings and comparing the difference between the latest and oldest write time with a preset time on the basis of a data consistency unit such as a data set. When the difference reaches or exceeds the present time, data within the data consistency assuring range is suspended or write data and copy data is regulated.
摘要翻译：通过确保和维护用户期望的范围内的数据一致性，确保数据一致性的重要性。提供从信息处理器100向其传送写入数据及其写入时间的主控制单元105具有获得未被复制到每个遥控单元的写入数据的最新写入时间和最早写入时间的功能 115作为复制目的地，并且根据诸如数据集之类的数据一致性单元将最新和最早的写入时间之间的差与预设时间进行比较。当差异达到或超过当前时间时，数据一致性保证范围内的数据被暂停或写入数据和复制数据被调节。

9. 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。

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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