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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

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。

6. 发明授权

US07069403B2 Method and apparatus for data duplexing in storage unit system 失效
公开(公告)号：US07069403B2
公开(公告)日：2006-06-27
申请号：US10685718
申请日：2003-10-14
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： G06F11/2064 , G06F11/2071 , 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.

7. 发明申请

US20050240741A1 Subsystem replacement method 有权
标题翻译：子系统更换方法
公开(公告)号：US20050240741A1
公开(公告)日：2005-10-27
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： G06F13/14 , G06F3/06 , G06F11/14 , G06F11/20 , G06F12/00 , G06F13/10
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。

8. 发明授权

US06950917B2 Subsystem replacement method 失效
标题翻译：子系统更换方法
公开(公告)号：US06950917B2
公开(公告)日：2005-09-27
申请号：US10382872
申请日：2003-03-07
申请人： Teruo Nagasawa , Takeshi Koide , Katsunori Nakamura
发明人： Teruo Nagasawa , Takeshi Koide , Katsunori Nakamura
IPC分类号： G06F13/14 , G06F3/06 , G06F11/14 , G06F11/20 , G06F12/00 , G06F13/10 , G06F12/02
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 devices. 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。存储控制装置控制从存储控制装置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。

9. 发明授权

US06665781B2 Method and apparatus for data duplexing in storage unit system 失效
公开(公告)号：US06665781B2
公开(公告)日：2003-12-16
申请号：US09839713
申请日：2001-04-19
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： G06F1216
CPC分类号： G06F11/2064 , G06F11/2071 , 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.

10. 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.

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