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1. 发明授权

US5623631A Limiting modification of cache entries in a write-back cache based upon the amount of dirty lines in the cache 失效
标题翻译：基于高速缓存中脏线的数量限制对回写高速缓存中的缓存条目的修改
公开(公告)号：US5623631A
公开(公告)日：1997-04-22
申请号：US383093
申请日：1995-02-03
申请人： Toshiaki Tsuboi , Akira Yamamoto , Shigeo Honma , Yoshihiro Asaka , Koji Ozawa , Hiroyuki Kitajima , Michio Miyazaki
发明人： Toshiaki Tsuboi , Akira Yamamoto , Shigeo Honma , Yoshihiro Asaka , Koji Ozawa , Hiroyuki Kitajima , Michio Miyazaki
IPC分类号： G06F12/08 , G06F12/12 , G06F12/00
CPC分类号： G06F12/0873 , G06F12/0866 , G06F12/0804 , G06F2212/312
摘要： In allocating an area of a cache memory to each storage unit, proper allocation of the cache memory is made to each storage unit. If the amount of write-after data becomes equal to or more than a threshold value, an allocation limit is set to each disk unit. If CPU issues a data write request requiring the amount of data equal to or more than the allocation limit, the data write request is held in a wait state until the amount of write-after data becomes less than the allocation limit. Therefore, the allocation amount to the disk unit becomes neither too large nor too small. In this manner, proper allocation of the cache memory to each disk unit can be realized.
摘要翻译：在向每个存储单元分配高速缓冲存储器的区域时，对每个存储单元进行高速缓冲存储器的适当分配。如果写入数据量等于或大于阈值，则对每个盘单元设置分配限制。如果CPU发出数据写请求，要求数据量等于或大于分配限制，则数据写入请求将保持在等待状态，直到写入数据量小于分配限制为止。因此，对于盘单元的分配量既不太大也不太小。以这种方式，可以实现对每个盘单元的高速缓冲存储器的适当分配。

2. 发明授权

US5418929A Controller for storage unit and method of controlling storage unit 失效
标题翻译：存储单元控制器和控制存储单元的方法
公开(公告)号：US5418929A
公开(公告)日：1995-05-23
申请号：US187500
申请日：1994-01-28
申请人： Toshiaki Tsuboi , Akira Yamamoto , Shigeo Honma , Yoshihiro Asaka , Koji Ozawa , Hiroyuki Kitajima , Michio Miyazaki
发明人： Toshiaki Tsuboi , Akira Yamamoto , Shigeo Honma , Yoshihiro Asaka , Koji Ozawa , Hiroyuki Kitajima , Michio Miyazaki
IPC分类号： G06F12/08 , G06F12/12 , G06F13/00
CPC分类号： G06F12/0873 , G06F12/0866 , G06F12/0804 , G06F2212/312
摘要： In allocating an area of a cache memory to each storage unit, proper allocation of the cache memory is made to each storage unit. If the amount of write-after data becomes equal to or more than a threshold value, an allocation limit is set to each disk unit. If CPU issues a data write request requiring the amount of data equal to or more than the allocation limit, the data write request is held in a wait state until the amount of write-after data becomes less than the allocation limit. Therefore, the allocation amount to the disk unit becomes neither too large nor too small. In this manner, proper allocation of the cache memory to each disk unit can be realized.
摘要翻译：在向每个存储单元分配高速缓冲存储器的区域时，对每个存储单元进行高速缓冲存储器的适当分配。如果写入数据量等于或大于阈值，则对每个盘单元设置分配限制。如果CPU发出数据写请求，要求数据量等于或大于分配限制，则数据写入请求将保持在等待状态，直到写入数据量小于分配限制为止。因此，对于盘单元的分配量既不太大也不太小。以这种方式，可以实现对每个盘单元的高速缓冲存储器的适当分配。

3. 发明授权

US5307473A Controller for storage unit and method of controlling storage unit 失效
标题翻译：存储单元控制器和控制存储单元的方法
公开(公告)号：US5307473A
公开(公告)日：1994-04-26
申请号：US833129
申请日：1992-02-10
申请人： Toshiaki Tsuboi , Akira Yamamoto , Shigeo Honma , Yoshihiro Asaka , Koji Ozawa , Hiroyuki Kitajima , Michio Miyazaki
发明人： Toshiaki Tsuboi , Akira Yamamoto , Shigeo Honma , Yoshihiro Asaka , Koji Ozawa , Hiroyuki Kitajima , Michio Miyazaki
IPC分类号： G06F12/08 , G06F12/12 , G06F13/00
CPC分类号： G06F12/0873 , G06F12/0866 , G06F12/0804 , G06F2212/312
摘要： In allocating an area of a cache memory to each storage unit, proper allocation of the cache memory is made to each storage unit. If the amount of write-after data becomes equal to or more than a threshold value, an allocation limit is set to each disk unit. If CPU issues a data write request requiring the amount of data equal to or more than the allocation limit, the data write request is held in a wait state until the amount of write-after data becomes less than the allocation limit. Therefore, the allocation amount to the disk unit becomes neither too large nor too small. In this manner, proper allocation of the cache memory to each disk unit can be realized.
摘要翻译：在向每个存储单元分配高速缓冲存储器的区域时，对每个存储单元进行高速缓冲存储器的适当分配。如果写入数据量等于或大于阈值，则对每个盘单元设置分配限制。如果CPU发出数据写请求，要求数据量等于或大于分配限制，则数据写入请求将保持在等待状态，直到写入数据量小于分配限制为止。因此，对于盘单元的分配量既不太大也不太小。以这种方式，可以实现对每个盘单元的高速缓冲存储器的适当分配。

4. 发明授权

US6148367A Controller limiting modification of cache based upon amount of dirty lines in the cache 失效
标题翻译：控制器根据高速缓存中脏线的数量限制修改缓存
公开(公告)号：US6148367A
公开(公告)日：2000-11-14
申请号：US777966
申请日：1996-12-24
申请人： Toshiaki Tsuboi , Akira Yamamoto , Shigeo Honma , Yoshihiro Asaka , Koji Ozawa , Hiroyuki Kitajima , Michio Miyazaki
发明人： Toshiaki Tsuboi , Akira Yamamoto , Shigeo Honma , Yoshihiro Asaka , Koji Ozawa , Hiroyuki Kitajima , Michio Miyazaki
IPC分类号： G06F12/08 , G06F12/12 , G06F13/00
CPC分类号： G06F12/0873 , G06F12/0866 , G06F12/0804 , G06F2212/312
摘要： In allocating an area of a cache memory to each storage unit, proper allocation of the cache memory is made to each storage unit. If the amount of write-after data becomes equal to or more than a threshold value, an allocation limit is set to each disk unit. If CPU issues a data write request requiring the amount of data equal to or more than the allocation limit, the data write request is held in a wait state until the amount of write-after data becomes less than the allocation limit. Therefore, the allocation amount to the disk unit becomes neither too large nor too small. In this manner, proper allocation of the cache memory to each disk unit can be realized.
摘要翻译：在向每个存储单元分配高速缓冲存储器的区域时，对每个存储单元进行高速缓冲存储器的适当分配。如果写入数据量等于或大于阈值，则对每个盘单元设置分配限制。如果CPU发出数据写请求，要求数据量等于或大于分配限制，则数据写入请求将保持在等待状态，直到写入数据量小于分配限制为止。因此，对于盘单元的分配量既不太大也不太小。以这种方式，可以实现对每个盘单元的高速缓冲存储器的适当分配。

5. 发明授权

US07610461B2 Storage system with mainframe and open host performing remote copying by setting a copy group 失效
标题翻译：存储系统与大型机和开放主机通过设置副本组执行远程复制
公开(公告)号：US07610461B2
公开(公告)日：2009-10-27
申请号：US11527477
申请日：2006-09-27
申请人： Masamitsu Takahashi , Koji Ozawa
发明人： Masamitsu Takahashi , Koji Ozawa
IPC分类号： G06F12/16 , G06F13/12
CPC分类号： G06F11/2064 , G06F11/2069 , G06F11/2071 , G06F11/2074 , G06F2201/82
摘要： If the pair state of a certain volume pair in one copy group is a fault state which has changed due to occurrence of a fault in the volume pair, then a write holding state is set for the copy group, and after setting the write holding state, the pair states of all the other volume pairs belonging to the copy group are set to a copy halt state. When setting the write holding state, and when executing setting of the copy halt setting state, commands from an open host are not necessary.
摘要翻译：如果一个拷贝组中某个卷对的配对状态是由于卷对中发生故障而发生变化的故障状态，则为复制组设置写保持状态，并且在设置写保持状态属于复制组的所有其他卷对的对状态被设置为复制停止状态。当设置写入保持状态时，当执行复制停止设置状态的设置时，不需要来自打开的主机的命令。

6. 发明授权

US07287132B2 Storage system, method of controlling storage system, and storage device 有权
公开(公告)号：US07287132B2
公开(公告)日：2007-10-23
申请号：US11526598
申请日：2006-09-26
申请人： Masamitsu Takahashi , Takao Satoh , Koji Ozawa
发明人： Masamitsu Takahashi , Takao Satoh , Koji Ozawa
IPC分类号： G06F12/12 , G06F12/16
CPC分类号： G06F11/2071 , G06F3/061 , G06F3/0659 , G06F3/067 , G06F11/2038 , G06F11/2058 , G06F11/2064 , G06F11/2066 , G06F11/2069 , G06F11/2074 , G06F11/2082 , G06F12/0866 , G06F2201/84
摘要： The present invention provides a storage system and a method of controlling the storage system, in which a second site rapidly resumes system process when a first site is damaged. The storage system comprises a first site including a first storage device, a second site including a second storage device, and a third site including a third storage device, and the method of controlling the storage system comprises a step of making a logical volume of the second storage device consistent with a logical volume of the first storage device by remotely copying only the differential data between the logical volume of the first storage device and the logical volume of the second storage device from a logical volume of the third storage device to the logical volume of the second storage device when the first site is damaged.

7. 发明授权

US06922762B2 Clustering storage system 失效
标题翻译：集群存储系统
公开(公告)号：US06922762B2
公开(公告)日：2005-07-26
申请号：US10223856
申请日：2002-08-19
申请人： Yusuke Hirakawa , Hiroshi Arakawa , Koji Ozawa
发明人： Yusuke Hirakawa , Hiroshi Arakawa , Koji Ozawa
IPC分类号： G06F3/06 , G06F11/14 , G06F13/00 , G06F15/16 , G06F15/177 , G11B20/10 , G11C7/00 , H04L29/08
CPC分类号： G06F11/1464 , H04L67/1097
摘要： A clustering storage system, which enables to operate a plurality of storage system units as a single storage system, presents connection information between clustering storage systems to a user and receives data to be backed up and an instruction about a path between the clustering storage systems from the user. The clustering storage system uses load information or a transfer speed of a data connection line between the storage system units to determine a path between the clustering storage systems used for backup and a storage system unit for holding a backup copy so that the data transfer between the storage system units becomes minimum. Besides, the clustering storage system mainly uses the determined path for backing up the data.
摘要翻译：能够将多个存储系统单元作为单个存储系统操作的集群存储系统将聚类存储系统之间的连接信息呈现给用户，并且接收要备份的数据和关于集群存储系统之间的路径的指令，用户。集群存储系统使用存储系统单元之间的数据连接线的负载信息或传输速度来确定用于备份的集群存储系统与用于保存备份副本的存储系统单元之间的路径，以便在存储系统单元变得最小。此外，集群存储系统主要使用确定的路径备份数据。

8. 发明授权

US06470432B2 External storage control device and data transfer method between external storage control devices 有权
公开(公告)号：US06470432B2
公开(公告)日：2002-10-22
申请号：US09987095
申请日：2001-11-13
申请人： Koji Ozawa , Kazuhide Sano , Takeshi Koide , Katsunori Nakamura
发明人： Koji Ozawa , Kazuhide Sano , Takeshi Koide , Katsunori Nakamura
IPC分类号： G06F1200
CPC分类号： G06F3/0601 , G06F3/0613 , G06F3/065 , G06F3/0659 , G06F3/067 , G06F3/0689 , G06F2003/0692 , G06F2003/0697
摘要： In a data processing system in which main and sub disk storage devices are under the control of individual each disk control devices, the write processing time is reduced by selectively sending data according to the command-chaining time between main and sub disk control devices. A section for judging cable length and function of the sub disk control device 36 estimates command-chaining time between a pair of main and sub disk storage devices. The channel command analyzing section 31 estimates the number of records to be transferred and the length of a record using a LOCATE RECORD command. The command judgment section for the sub disk control device 32 optimizes the command-chain to be issued to the sub disk control device using the above-mentioned information. Then, the section for issuing command to the sub disk control device 35 issues the optimized command chain. Thus, a shorter transmission time is realized by either sending individual records or an entire track of data.

9. 发明授权

US5978890A External storage control device and data transfer method between external storage control devices 失效
公开(公告)号：US5978890A
公开(公告)日：1999-11-02
申请号：US779471
申请日：1997-01-08
申请人： Koji Ozawa , Kazuhide Sano , Takeshi Koide , Katsunori Nakamura
发明人： Koji Ozawa , Kazuhide Sano , Takeshi Koide , Katsunori Nakamura
IPC分类号： G06F13/10 , G06F3/06 , G06F12/16 , G06F13/12 , G06F12/14
CPC分类号： G06F3/0601 , G06F3/0613 , G06F3/065 , G06F3/0659 , G06F3/067 , G06F3/0689 , G06F2003/0692 , G06F2003/0697
摘要： In a data processing system in which main and sub disk storage devices are under the control of individual each disk control devices, the write processing time is reduced by selectively sending data according to the command-chaining time between main and sub disk control devices. A section for judging cable length and function of the sub disk control device 36 estimates command-chaining time between a pair of main and sub disk storage devices. The channel command analyzing section 31 estimates the number of records to be transferred and the length of a record using a LOCATE RECORD command. The command judgment section for the sub disk control device 32 optimizes the command-chain to be issued to the sub disk control device using the above-mentioned information. Then, the section for issuing command to the sub disk control device 35 issues the optimized command chain. Thus, a shorter transmission time is realized by either sending individual records or an entire track of data.

10. 发明授权

US5375227A Method of and apparatus for automatic recovery of a cache in a storage system 失效
标题翻译：用于自动恢复存储系统中的高速缓存的方法和装置
公开(公告)号：US5375227A
公开(公告)日：1994-12-20
申请号：US573784
申请日：1990-08-28
申请人： Masaharu Akatsu , Tomohiro Murata , Kenzou Kurihara , Morihiko Yotsuya , Koji Ozawa
发明人： Masaharu Akatsu , Tomohiro Murata , Kenzou Kurihara , Morihiko Yotsuya , Koji Ozawa
IPC分类号： G06F12/08 , G11C29/00 , G06F13/14
CPC分类号： G11C29/88 , G06F12/0866 , G06F2212/312
摘要： Herein disclosed is a disk controller having a cache. This cache is so managed that a predetermined part composed of at least one of a plurality parts divided therefrom is initialized. In response to a request for cache activation from a host computer, the initializations of the cache are partly executed in a repeated manner, and a request for disk input/output is intermittently processed so that the whole initializations of a cache having a large capacity can be executed in parallel with the online process.Moreover, the logic failure of the cache and the hardware failure of a memory are divided. When the logic failure occurs, the use of the case is temporarily prohibited, and the whole initializations of the cache are executed automatically at the side of the disk controller without any intervention of a maintenance man so that the cache can be used again.
摘要翻译：这里公开的是具有缓存的盘控制器。对该高速缓冲存储器进行管理，使由其分割的多个部分中的至少一个构成的预定部分被初始化。响应于来自主计算机的缓存激活请求，高速缓存的初始化部分地以重复的方式执行，并且间歇地处理对盘输入/输出的请求，使得具有大容量的高速缓存的整个初始化可以与在线流程并行执行。此外，缓存的逻辑故障和存储器的硬件故障被划分。当发生逻辑故障时，暂时禁止使用该情况，并且高速缓存的整个初始化在磁盘控制器的一侧自动执行，而不需要维护人员的任何干预，以便可以再次使用高速缓存。

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