Asynchronous remote copy system, and, storage control method

    公开(公告)号:JP5270796B2

    公开(公告)日:2013-08-21

    申请号:JP2012509185

    申请日:2010-04-07

    Abstract: If the first storage apparatus is suspended, it is determined which of the update number which the journal recently reflected in the second storage apparatus comprises and the update number which the journal recently reflected in the third storage apparatus comprises is the newer. It is determined, in the newer storage apparatus which is determined to comprise the newer update number, whether one or more differential journals from the journal comprising the update number next to the update number which is not determined to be the newer to the journal comprising the update number determined to be the newer exist or not. If the result of the determination is positive, from the newer storage apparatus to the previous storage apparatus which is not the newer of the second and the third storage apparatuses, one or more differential JNLs are copied. In the previous storage apparatus, one or more differential JNLs are reflected in order of the update numbers, to the data volumes in the previous storage apparatus.

    Computer system for performing remote copy using journal
    247.
    发明专利
    Computer system for performing remote copy using journal 有权
    用于执行远程复印的计算机系统

    公开(公告)号:JP2010102463A

    公开(公告)日:2010-05-06

    申请号:JP2008272590

    申请日:2008-10-23

    CPC classification number: G06F11/2074 G06F11/2064 G06F11/2082 G06F2201/855

    Abstract: PROBLEM TO BE SOLVED: To store the matching of data stored in a secondary storage system, even if a time stamp is not imparted to write object data which a primary storage system receives.
    SOLUTION: A single computer is provided with a storage management part. The storage management part regularly or irregularly issues ID, which is next to the previously issued ID to one or more primary storage systems (PDKCs). When a write command is received from one of computers, each PDKC creates journal (JNL) that includes the duplicate (journal data) of write target data and the latest ID from the storage management part, and transfers the journal to a secondary storage system (SDKC). The SDKC stores the received JNL and reflects the JNL until the particular JNL among the non-reflected JNL to the secondary volume. The particular JNL has ID which is the oldest next to the oldest ID among the latest arrival ID in one or more SDKCs.
    COPYRIGHT: (C)2010,JPO&INPIT

    Abstract translation: 要解决的问题:为了存储存储在辅助存储系统中的数据的匹配,即使没有赋予写入主存储系统接收的对象数据的时间戳。

    解决方案:单个计算机配有存储管理部件。 存储管理部件定期或不规律地发出ID,其与先前发布的ID相邻的一个或多个主存储系统(PDKC)。 当从一台计算机接收到写入命令时,每个PDKC创建包含写目标数据的重复(日志数据)和存储管理部分的最新ID的日志(JNL),并将日志传送到辅助存储系统 SDKC)。 SDKC存储接收的JNL并反映JNL,直到未反映的JNL中的特定JNL到次要卷。 特定的JNL ID是一个或多个SDKC中的最新到达ID中最早的ID的ID。 版权所有(C)2010,JPO&INPIT

    Storage system and remote copy control method of storage system
    249.
    发明专利
    Storage system and remote copy control method of storage system 有权
    存储系统的存储系统和远程复制控制方法

    公开(公告)号:JP2007264946A

    公开(公告)日:2007-10-11

    申请号:JP2006087983

    申请日:2006-03-28

    CPC classification number: G06F11/2074 G06F11/2064 G06F2201/855

    Abstract: PROBLEM TO BE SOLVED: To ensure consistency of stored contents between volumes even when a plurality of remote copies are respectively executed asynchronously in the storage system. SOLUTION: A plurality of main storage controllers 1 and a plurality of sub storage controllers 2 are connected by a plurality of paths and the respective asynchronous remote copies are executed between respective first volumes 1A and respective second volumes 2A. Write data D1 transferred from the main storage controller 1 to the sub storage controller 2 are kept in a write data storage part 2B. Update order information D2 including the write time and a sequential number is managed in an update order information management part 2D. An update control part 3 gathers the update order information D2 from the respective update order information management parts 2D, decides the point of time at which the respective second volumes 2A can be updated and notifies respective update parts 2C. Thus, the stored contents of the respective second volumes 2A are respectively updated until the point of time at which update is allowed. COPYRIGHT: (C)2008,JPO&INPIT

    Abstract translation: 要解决的问题:即使当多个远程副本分别在存储系统中异步执行时,为了确保卷之间的存储内容的一致性。 解决方案:多个主存储控制器1和多个子存储控制器2通过多个路径连接,并且各自的异步远程拷贝在相应的第一卷1A和相应的第二卷2A之间执行。 将从主存储控制器1传送到副存储控制器2的写入数据D1保存在写入数据存储部分2B中。 在更新顺序信息管理部2D中管理包括写入时间和序列号的更新顺序信息D2。 更新控制部分3从相应的更新订单信息管理部分2D收集更新订单信息D2,确定可以更新各个第二卷2A的时间点并通知相应的更新部分2C。 因此,分别更新各个第二卷2A的存储内容,直到允许更新的时间点为止。 版权所有(C)2008,JPO&INPIT

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