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11. 发明申请

US20070118705A1 Remote copy system maintaining consistency 有权
标题翻译：远程复制系统保持一致性
公开(公告)号：US20070118705A1
公开(公告)日：2007-05-24
申请号：US11656482
申请日：2007-01-23
申请人： Hiroshi Arakawa , Takashige Iwamura , Yusuke Hirakawa
发明人： Hiroshi Arakawa , Takashige Iwamura , Yusuke Hirakawa
IPC分类号： G06F12/16
CPC分类号： G06F11/2074 , Y10S707/99953 , Y10S707/99954
摘要： A remote copy system for copying data between a plurality of storage systems, including: a plurality of first storage systems to and from which data is inputted and outputted, and a plurality of second storage systems that are connected to each of the first storage systems; each of the first storage systems including a first logical volume that stores the data that is inputted and outputted; each of the second storage systems including a second logical volume that stores a copy of the data stored in the first logical volume; the remote copy system comprising a pre-update data storage unit that stores pre-update data that is stored before data to be stored in the second logical volume is updated and time stamps of the data to be stored in the second logical volume.
摘要翻译：一种用于在多个存储系统之间复制数据的远程复制系统，包括：输入和输出数据的多个第一存储系统和连接到每个第一存储系统的多个第二存储系统; 每个第一存储系统包括存储输入和输出的数据的第一逻辑卷; 每个第二存储系统包括存储存储在第一逻辑卷中的数据的副本的第二逻辑卷; 包括更新数据存储单元的远程复制系统，其更新存储在要存储在第二逻辑卷中的数据之前存储的更新前数据，以及要存储在第二逻辑卷中的数据的时间戳。

12. 发明申请

US20060023527A1 Remote copy system 失效
公开(公告)号：US20060023527A1
公开(公告)日：2006-02-02
申请号：US10954163
申请日：2004-10-01
申请人： Hiroshi Arakawa , Takashige Iwamura , Kenta Ninose , Yusuke Hirakawa
发明人： Hiroshi Arakawa , Takashige Iwamura , Kenta Ninose , Yusuke Hirakawa
IPC分类号： G11C7/00
CPC分类号： G06F11/2071 , G06F11/2064
摘要： Even when a host does not give a write time to write data, consistency can be kept among data stored in secondary storage systems. The present system has plural primary storage systems each having a source volume and plural secondary storage systems each having a target volume. Once data is received from a host, each of the plural storage systems creates write-data management information having sequential numbers and reference information and sends, to one of the primary storage systems, the data, sequential number and reference information. Each of the secondary storage systems records reference information corresponding to the largest sequential number among serial sequential numbers and stores, in a target volume in an order of sequential numbers, data corresponding to reference information having a value smaller than the reference information based on the smallest value reference information among reference information recorded in each of the plural secondary storage systems.

13. 发明授权

US07865682B2 Remote copy system 有权
标题翻译：远程复制系统
公开(公告)号：US07865682B2
公开(公告)日：2011-01-04
申请号：US12610455
申请日：2009-11-02
申请人： Hiroshi Arakawa , Takashige Iwamura , Kenta Ninose , Yusuke Hirakawa
发明人： Hiroshi Arakawa , Takashige Iwamura , Kenta Ninose , Yusuke Hirakawa
IPC分类号： G06F12/00
CPC分类号： G06F11/2071 , G06F11/2064
摘要： Even when a host does not give a write time to write data, consistency can be kept among data stored in secondary storage systems. The present system has plural primary storage systems each having a source volume and plural secondary storage systems each having a target volume. Once data is received from a host, each of the plural storage systems creates write-data management information having sequential numbers and reference information and sends, to one of the primary storage systems, the data, sequential number and reference information. Each of the secondary storage systems records reference information corresponding to the largest sequential number among serial sequential numbers and stores, in a target volume in an order of sequential numbers, data corresponding to reference information having a value smaller than the reference information based on the smallest value reference information among reference information recorded in each of the plural secondary storage systems.
摘要翻译：即使主机没有写入时间来写入数据，也可以在存储在二级存储系统中的数据之间保持一致性。本系统具有各自具有源卷的多个主存储系统和各自具有目标卷的多个辅助存储系统。一旦从主机接收到数据，多个存储系统中的每一个创建具有连续号码和参考信息的写入数据管理信息，并向主存储系统之一发送数据，序列号和参考信息。每个辅助存储系统记录与串行序列号中的最大顺序号相对应的参考信息，并且在目标卷中以顺序号顺序存储对应于具有小于基于最小值的参考信息的参考信息的参考信息的数据在多个辅助存储系统的每一个中记录的参考信息中的值参考信息。

14. 发明授权

US07634626B2 Remote copy system 失效
标题翻译：远程复制系统
公开(公告)号：US07634626B2
公开(公告)日：2009-12-15
申请号：US10954163
申请日：2004-10-01
申请人： Hiroshi Arakawa , Takashige Iwamura , Kenta Ninose , Yusuke Hirakawa
发明人： Hiroshi Arakawa , Takashige Iwamura , Kenta Ninose , Yusuke Hirakawa
IPC分类号： G06F12/00
CPC分类号： G06F11/2071 , G06F11/2064
摘要： Even when a host does not give a write time to write data, consistency can be kept among data stored in secondary storage systems. The present system has plural primary storage systems each having a source volume and plural secondary storage systems each having a target volume. Once data is received from a host, each of the plural storage systems creates write-data management information having sequential numbers and reference information and sends, to one of the primary storage systems, the data, sequential number and reference information. Each of the secondary storage systems records reference information corresponding to the largest sequential number among serial sequential numbers and stores, in a target volume in an order of sequential numbers, data corresponding to reference information having a value smaller than the reference information based on the smallest value reference information among reference information recorded in each of the plural secondary storage systems.
摘要翻译：即使主机没有写入时间来写入数据，也可以在存储在二级存储系统中的数据之间保持一致性。本系统具有各自具有源卷的多个主存储系统和各自具有目标卷的多个辅助存储系统。一旦从主机接收到数据，多个存储系统中的每一个创建具有序列号和参考信息的写入数据管理信息，并向主存储系统之一发送数据，序列号和参考信息。每个辅助存储系统记录与串行序列号中的最大顺序号相对应的参考信息，并且在目标卷中以顺序号顺序存储对应于具有小于基于最小值的参考信息的参考信息的参考信息的数据在多个辅助存储系统的每一个中记录的参考信息中的值参考信息。

15. 发明授权

US07590809B2 Remote copy system 有权
标题翻译：远程复制系统
公开(公告)号：US07590809B2
公开(公告)日：2009-09-15
申请号：US11015194
申请日：2004-12-17
申请人： Kenta Ninose , Hiroshi Arakawa , Takashige Iwamura , Yoshihiro Asaka , Yusuke Hirakawa
发明人： Kenta Ninose , Hiroshi Arakawa , Takashige Iwamura , Yoshihiro Asaka , Yusuke Hirakawa
IPC分类号： G06F12/00
CPC分类号： G06F11/2071 , G06F11/2058 , G06F11/2066 , G06F11/2069 , G06F11/2074 , G06F11/2082
摘要： To provide a computer system constituting a multitarget array and utilizing a remote copy technique for backing up data, in which when a failure occurs in a primary site, a new pair is formed between remaining two secondary sites without copying all data. A first secondary site is associated with the primary site by synchronous remote copy. A second secondary site is associated with the primary site by asynchronous remote copy. A storage system of the first secondary site includes a difference bitmap indicating an area to which data has been written from a host computer. When a failure occurs in a host computer of the primary site, only data of an area indicated by the difference bitmap is transferred to a storage system of the second secondary site.
摘要翻译：为了提供构成多目标阵列的计算机系统并利用远程复制技术备份数据，其中当主站点发生故障时，在剩余的两个辅助站点之间形成新的对，而不复制所有数据。第一个辅助站点通过同步远程副本与主站点相关联。第二个辅助站点通过异步远程复制与主站点相关联。第一辅助站点的存储系统包括指示从主计算机写入了数据的区域的差分位图。当在主站点的主计算机中发生故障时，仅差分位图指示的区域的数据被传送到第二辅助站点的存储系统。

16. 发明授权

US07330948B2 Method for remote copy pair migration 有权
公开(公告)号：US07330948B2
公开(公告)日：2008-02-12
申请号：US11143780
申请日：2005-06-03
申请人： Akira Deguchi , Takashige Iwamura , Kenta Ninose , Hiroshi Arakawa
发明人： Akira Deguchi , Takashige Iwamura , Kenta Ninose , Hiroshi Arakawa
IPC分类号： G06F12/16
CPC分类号： G06F11/2069 , G06F11/2074
摘要： During an asynchronous remote copy process for a plurality of asynchronous remote copy pairs, a copy of data in a migration source primary storage area is stored in a migration destination primary storage area, and the copy of data in the migration source primary storage area is also stored in a migration destination secondary storage area through a migration destination primary storage area or a migration source secondary storage area. Then, for an asynchronous remote copy pair established between the migration destination primary storage area and the migration destination secondary storage area together with the above-described asynchronous remote copy pairs, the asynchronous remote copy process is executed in such a method that a copy of writing data is stored in a plurality of secondary storage areas in accordance with the write request sequence issued by a computer. As such, an asynchronous remote copy pair between any two specific storage systems is migrated to be an asynchronous remote copy pair among any other two storage systems.

17. 发明授权

US08560631B2 Storage system 有权
公开(公告)号：US08560631B2
公开(公告)日：2013-10-15
申请号：US11772710
申请日：2007-07-02
申请人： Takashige Iwamura , Yasutomo Yamamoto , Yoshiaki Eguchi , Hiroshi Arakawa , Kouji Arai
发明人： Takashige Iwamura , Yasutomo Yamamoto , Yoshiaki Eguchi , Hiroshi Arakawa , Kouji Arai
IPC分类号： G06F15/16
CPC分类号： H04L67/1097
摘要： When a logical volume in a first storage box is transferred to a second storage box, information of an access object such as a network communication protocol possessed by a host which communicates with the first storage box is changed to change a network route for accessing the transferred logical volume. Logical volume transfer is notified from the first storage box to the host by using an ICMP Redirection Error message or the ARP protocol.

18. 发明申请

US20080140966A1 Method for remote copy pair migration 有权
标题翻译：远程复制对迁移方法
公开(公告)号：US20080140966A1
公开(公告)日：2008-06-12
申请号：US12000820
申请日：2007-12-18
申请人： Akira Deguchi , Takashige Iwamura , Kenta Ninose , Hiroshi Arakawa
发明人： Akira Deguchi , Takashige Iwamura , Kenta Ninose , Hiroshi Arakawa
IPC分类号： G06F12/16
CPC分类号： G06F11/2069 , G06F11/2074
摘要： During an asynchronous remote copy process for a plurality of asynchronous remote copy pairs, a copy of data in a migration source primary storage area is stored in a migration destination primary storage area, and the copy of data in the migration source primary storage area is also stored in a migration destination secondary storage area through a migration destination primary storage area or a migration source secondary storage area. Then, for an asynchronous remote copy pair established between the migration destination primary storage area and the migration destination secondary storage area together with the above-described asynchronous remote copy pairs, the asynchronous remote copy process is executed in such a method that a copy of writing data is stored in a plurality of secondary storage areas in accordance with the write request sequence issued by a computer. As such, an asynchronous remote copy pair between any two specific storage systems is migrated to be an asynchronous remote copy pair among any other two storage systems.
摘要翻译：在用于多个异步远程复制对的异步远程复制过程期间，迁移源主存储区域中的数据副本被存储在迁移目的地主存储区域中，并且迁移源主存储区域中的数据副本也是通过迁移目的地主存储区域或迁移源辅助存储区域存储在迁移目的地辅助存储区域中。然后，对于在迁移目的地主存储区域和迁移目的地辅助存储区域之间建立的异步远程复制对以及上述异步远程复制对，异步远程复制处理以这样的方式执行，即，写入副本根据由计算机发出的写入请求序列，将数据存储在多个辅助存储区域中。因此，任何两个特定存储系统之间的异步远程副本对被迁移到任何其他两个存储系统之间的异步远程副本对。

19. 发明申请

US20070283366A1 Storage System 有权
标题翻译：存储系统
公开(公告)号：US20070283366A1
公开(公告)日：2007-12-06
申请号：US11772710
申请日：2007-07-02
申请人： Takashige Iwamura , Yasutomo Yamamoto , Yoshiaki Eguchi , Hiroshi Arakawa , Kouji Arai
发明人： Takashige Iwamura , Yasutomo Yamamoto , Yoshiaki Eguchi , Hiroshi Arakawa , Kouji Arai
IPC分类号： G06F3/00
CPC分类号： H04L67/1097
摘要： When a logical volume in a first storage box is transferred to a second storage box, information of an access object such as a network communication protocol possessed by a host which communicates with the first storage box is changed to change a network route for accessing the transferred logical volume. Logical volume transfer is notified from the first storage box to the host by using an ICMP Redirection Error message or the ARP protocol.
摘要翻译：当第一存储盒中的逻辑卷被传送到第二存储盒时，改变与第一存储盒通信的主机所拥有的诸如网络通信协议的访问对象的信息，以改变用于访问所转移的逻辑卷。通过使用ICMP重定向错误消息或ARP协议，将逻辑卷传输从第一个存储盒通知给主机。

20. 发明申请

US20070113034A1 Storage remote copy system 审中-公开
公开(公告)号：US20070113034A1
公开(公告)日：2007-05-17
申请号：US11649214
申请日：2007-01-04
申请人： Tetsuya Maruyama , Takashige Iwamura , Hiroshi Arakawa , Kenta Ninose
发明人： Tetsuya Maruyama , Takashige Iwamura , Hiroshi Arakawa , Kenta Ninose
IPC分类号： G06F12/16 , G06F13/28
CPC分类号： G06F11/2071 , G06F11/2038 , G06F11/2058 , G06F11/2064 , G06F11/2069 , G06F11/2082 , G06F2201/84
摘要： In the conventional storage system, consistency is ensured only for writing from a single storage. Asynchronous remote copying and local replication are also alternately suspended in the conventional system, so that the suspension time increases and the volume in which consistency is obtained becomes old. Two local replicas are prepared, for a volume containing stored data that is transferred from the main site by asynchronous remote copying, in the storage at the sub-site. Each pair of local replicas is alternately suspended by a time-specific suspension command according to the time of the timestamp attached to the write data, and replica data in which the time sequence is secured is continually prepared. When a failure occurs at the main site, the data is recovered using the replica data.

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