Synchronizing data storage systems in a data storage environment
    1.
    发明授权
    Synchronizing data storage systems in a data storage environment 失效
    在数据存储环境中同步数据存储系统

    公开(公告)号:US08583886B2

    公开(公告)日:2013-11-12

    申请号:US12698331

    申请日:2010-02-02

    IPC分类号: G06F12/00

    CPC分类号: G06F12/00 G06F12/16

    摘要: A method for synchronizing data storage systems is provided. The method comprises designating a relationship between a first data storage system and a second data storage system, such that data stored in the first data storage system is copied to the second data storage system, in response to determining that the data stored in the first data storage system has been modified; receiving a first request to modify data stored in a first data block of a first storage volume in the first data storage system, wherein the data block is modified according to the first request; determining that the first data block has not been successfully synchronized when the modified data stored in the first data block is not copied to the second data storage system; and executing a process to retry synchronization of the first data block until synchronization of the first data block is successful, without suspending the relationship while the process is executed.

    摘要翻译: 提供了一种同步数据存储系统的方法。 该方法包括:指定第一数据存储系统和第二数据存储系统之间的关系,使得存储在第一数据存储系统中的数据被复制到第二数据存储系统,以响应于确定存储在第一数据中的数据 存储系统已经修改; 接收修改存储在第一数据存储系统中的第一存储卷的第一数据块中的数据的第一请求,其中根据第一请求修改数据块; 当存储在第一数据块中的修改数据未被复制到第二数据存储系统时,确定第一数据块尚未成功同步; 以及执行重试所述第一数据块的同步的处理,直到所述第一数据块的同步成功,而不执行所述处理时暂停所述关系。

    SYNCHRONIZING DATA STORAGE SYSTEMS IN A DATA STORAGE ENVIRONMENT
    2.
    发明申请
    SYNCHRONIZING DATA STORAGE SYSTEMS IN A DATA STORAGE ENVIRONMENT 失效
    在数据存储环境中同步数据存储系统

    公开(公告)号:US20110191557A1

    公开(公告)日:2011-08-04

    申请号:US12698331

    申请日:2010-02-02

    IPC分类号: G06F12/16 G06F12/00

    CPC分类号: G06F12/00 G06F12/16

    摘要: A method for synchronizing data storage systems is provided. The method comprises designating a relationship between a first data storage system and a second data storage system, such that data stored in the first data storage system is copied to the second data storage system, in response to determining that the data stored in the first data storage system has been modified; receiving a first request to modify data stored in a first data block of a first storage volume in the first data storage system, wherein the data block is modified according to the first request; determining that the first data block has not been successfully synchronized when the modified data stored in the first data block is not copied to the second data storage system; and executing a process to retry synchronization of the first data block until synchronization of the first data block is successful, without suspending the relationship while the process is executed.

    摘要翻译: 提供了一种同步数据存储系统的方法。 该方法包括:指定第一数据存储系统和第二数据存储系统之间的关系,使得存储在第一数据存储系统中的数据被复制到第二数据存储系统,以响应于确定存储在第一数据中的数据 存储系统已经修改; 接收修改存储在第一数据存储系统中的第一存储卷的第一数据块中的数据的第一请求,其中根据第一请求修改数据块; 当存储在第一数据块中的修改数据未被复制到第二数据存储系统时,确定第一数据块尚未成功同步; 以及执行重试所述第一数据块的同步的处理,直到所述第一数据块的同步成功,而不执行所述处理时暂停所述关系。

    Method, system, and program for asynchronous copy
    3.
    发明申请
    Method, system, and program for asynchronous copy 有权
    用于异步复制的方法,系统和程序

    公开(公告)号:US20050071586A1

    公开(公告)日:2005-03-31

    申请号:US10675317

    申请日:2003-09-29

    IPC分类号: G06F12/00 G06F12/08

    CPC分类号: G06F12/0835 G06F12/0826

    摘要: Disclosed is a technique for maintaining consistency of data. One or more blocks of data identified by a first structure are copied to form a consistent set of data. While not acknowledging completion of write requests to any blocks of data, a second structure is created, wherein the second structure indicates which blocks of data are modified while the consistent set of data is being formed. Also disclosed is a technique for asynchronous copy. Indicators are updated in a first structure for one or more blocks of data, wherein each indicator in the first structure indicates whether a corresponding block of data was modified since the block of data was last sent to remote storage. While copying the blocks of data identified by the indicators in the first structure as having been modified since the blocks of data were last sent to remote storage, indicators in a second structure are updated for the one or more blocks of data, wherein each indicator in the second structure indicates whether a corresponding block of data was modified while a consistent set of data is being formed.

    摘要翻译: 公开了一种保持数据一致性的技术。 由第一结构标识的一个或多个数据块被复制以形成一致的数据集。 在不向任何数据块确认写请求的完成的情况下,创建第二结构,其中第二结构指示在形成一致的数据集时修改数据块。 还公开了用于异步复制的技术。 指示符以用于一个或多个数据块的第一结构进行更新,其中第一结构中的每个指示符指示是否修改了相应的数据块,因为数据块最后发送到远程存储。 由于数据块最后发送到远程存储,将第一结构中由指示符标识的数据块复制为已被修改,因此对于一个或多个数据块更新了第二结构中的指示符,其中每个指示符 第二结构指示在形成一致的一组数据时是否修改相应的数据块。