DUAL WRITING DEVICE AND ITS CONTROL METHOD
    1.
    发明申请
    DUAL WRITING DEVICE AND ITS CONTROL METHOD 有权
    双写设备及其控制方法

    公开(公告)号:US20110202718A1

    公开(公告)日:2011-08-18

    申请号:US13094481

    申请日:2011-04-26

    IPC分类号: G06F12/16 G06F12/08

    摘要: A data storing system include a first and second storage system, each including a cache memory and a disk drive, and a third storage system coupled to the first and second storage systems and including a third disk drive to provide a third logical volume based on the third disk drive. First and second write data is transmitted from the first storage system to the second storage system according to copy pair management information. A certain storage system, which is one of the first and second storage systems, destages the second write data from a cache memory of the certain storage system to the third logical volume in the third storage system according to a volume and storage conversion table in the certain storage system.

    摘要翻译: 数据存储系统包括第一和第二存储系统,每个包括高速缓冲存储器和磁盘驱动器,以及耦合到第一和第二存储系统的第三存储系统,并且包括第三磁盘驱动器,以基于 第三个磁盘驱动器。 第一和第二写入数据根据复制对管理信息从第一存储系统发送到第二存储系统。 作为第一和第二存储系统之一的某个存储系统根据第一和第二存储系统中的卷和存储转换表将第二写数据从特定存储系统的高速缓存存储器转移到第三存储系统中的第三逻辑卷 某些存储系统。

    Storage system with journal reflecting area control function
    2.
    发明授权
    Storage system with journal reflecting area control function 失效
    具有日志反射区域控制功能的存储系统

    公开(公告)号:US07694090B2

    公开(公告)日:2010-04-06

    申请号:US11335150

    申请日:2006-01-18

    IPC分类号: G06F12/00 G06F13/00 G06F13/28

    摘要: This invention relates to data backup and data recovery in a computer system. An outputting unit updates data stored in a first area based on an update request of data from the host computer, a creating unit stores update data for the update request in a second area, a marker processing unit creates a marker containing information of the range, in which the data is stored, and information indicating whether or not the data is allowed to be stored in a third area based on a request of creating the marker from the host computer to store the created marker in the second area, and a reflecting unit refers to the marker, obtains the update data corresponding to the data storing range, which is stored prior to the marker, and reflects the obtained update data to the third area.

    摘要翻译: 本发明涉及计算机系统中的数据备份和数据恢复。 输出单元基于来自主计算机的数据的更新请求更新存储在第一区域中的数据,创建单元将更新请求的更新数据存储在第二区域中,标记处理单元创建包含范围信息的标记, 其中存储数据,以及指示是否允许数据被存储在第三区域中的信息,该信息是基于从主计算机创建标记的请求将所创建的标记存储在第二区域中的反映单元 是指标记,获取与标记之前存储的对应于数据存储范围的更新数据,并将获得的更新数据反映到第三区域。

    Storage network system, host computer and physical path allocation method
    3.
    发明申请
    Storage network system, host computer and physical path allocation method 审中-公开
    存储网络系统,主机和物理路径分配方法

    公开(公告)号:US20060085575A1

    公开(公告)日:2006-04-20

    申请号:US11008404

    申请日:2004-12-08

    IPC分类号: G06F3/06

    摘要: The object of the invention is to prevent differential data transfer for a volume pair from being stopped by the influence of another volume pair and make the loads on physical paths equal to each other by finding an optimum allocation of the physical paths to logical paths. A storage network system includes a host computer 10 and a plurality of storage subsystems 20, and the host computer 10 or a storage subsystem 20 checks a pair status of a volume pair consisting of a source logical volume 26p and a target logical volume 26s, determines a coefficient value uniquely determined from the pair status as a load value of the volume pair, determines a sum of load values of volume pairs belonging to the group to which the source volume belongs as a group load value, and allocates a number of physical paths corresponding to the group load value and a plural-group load value, which is a sum of the load values of a plurality of groups, to the volume pairs belonging to the group as a logical path, which is a virtual communication link.

    摘要翻译: 本发明的目的是为了防止由于另一个卷对的影响使一个卷对的差异数据传输被阻止,并且通过找到对逻辑路径的物理路径的最佳分配,使物理路径上的负载相互相等。 存储网络系统包括主计算机10和多个存储子系统20,并且主计算机10或存储子系统20检查由源逻辑卷26 p和目标逻辑卷26s组成的卷对的对状态 确定从配对状态唯一确定的系数值作为卷对的负载值,确定属于源卷所属的组的卷对的负载值之和作为组负载值,并分配多个 对应于组负载值的物理路径和作为多个组的负载值的和的多组负载值作为虚拟通信链路的作为逻辑路径的组的卷对。

    DUAL WRITING DEVICE AND ITS CONTROL METHOD
    4.
    发明申请
    DUAL WRITING DEVICE AND ITS CONTROL METHOD 有权
    双写设备及其控制方法

    公开(公告)号:US20120137096A1

    公开(公告)日:2012-05-31

    申请号:US13363402

    申请日:2012-02-01

    IPC分类号: G06F12/16

    摘要: A computer system and method which stores path definition information including a storage ID, a volume ID, and validities of paths between a host computer and a first or second storage system identified by the storage ID for accessing a volume identified by the volume ID in one of the storage systems, sends an I/O request via the paths, based on the path definition information, receives information indicating the storage and volume IDs, and updates the path definition information. During initial copying from the second to the first volume, validity corresponding to a first path is set to “Invalid” and validity corresponding to a second path is set to “Valid”. After completion of initial copying, the validity corresponding to the first path included in the path definition information is changed to “Valid.”

    摘要翻译: 一种计算机系统和方法,其存储路径定义信息,该路径定义信息包括存储ID,卷ID,以及由主机计算机与由该存储ID标识的第一或第二存储系统之间的路径的有效性,用于访问由一卷中的卷ID标识的卷 的存储系统,基于路径定义信息经由路径发送I / O请求,接收指示存储和卷ID的信息,并更新路径定义信息。 在从第二卷到第一卷的初始复制期间,对应于第一路径的有效性被设置为“无效”,并且对应于第二路径的有效性被设置为“有效”。 在初始复制完成之后,将包括在路径定义信息中的第一路径的有效性改变为“有效”。

    Computer system, storage device and method providing intra-storage volume identifiers corresponding to intra-host volume identifiers through volume switching commands
    5.
    发明授权
    Computer system, storage device and method providing intra-storage volume identifiers corresponding to intra-host volume identifiers through volume switching commands 有权
    计算机系统,存储装置和方法,通过卷切换命令提供对应于内部主机卷标识符的内部存储卷标识符

    公开(公告)号:US07299322B2

    公开(公告)日:2007-11-20

    申请号:US11167433

    申请日:2005-06-28

    IPC分类号: G06F13/00

    摘要: Related plural logical volumes can be used after switching over from the host computer therein. A switching command, which a host computer sends, makes a storage device search for a switching target volume, from the volume tables, that is identical to identification information of the switching target volume received among switching target candidate volumes that form a volume pair relation with the switching source volume. The storage device memorizes an intra-host ID of the switching target volume and an intra-storage ID of the switching target volume in a switching table with a correspondence there between. The storage device acquires the intra-storage ID of the switching target volume in reference to the switching table in the case of receiving an access request, such that the intra-host ID of the switching source volume is used as a key, and executes switching to access to the switching target volume.

    摘要翻译: 相关的多个逻辑卷可以在其中从主计算机切换之后使用。 主计算机发送的切换命令使存储设备从卷表中搜索与切换目标卷的识别信息相同的切换目标卷,所述切换目标卷与形成与第 开关源音量。 存储装置在切换表中存储切换目标卷的主机内ID和切换目标卷的存储内ID,其间具有对应关系。 在接收到访问请求的情况下,存储装置参照切换表获取切换目标卷的存储内ID,使得切换源卷的主机内ID被用作密钥,并执行切换 以访问切换目标卷。

    Dual writing device and its control method
    6.
    发明授权
    Dual writing device and its control method 有权
    双写装置及其控制方法

    公开(公告)号:US08127097B2

    公开(公告)日:2012-02-28

    申请号:US13094481

    申请日:2011-04-26

    IPC分类号: G06F12/10

    摘要: A data storing system include a first and second storage system, each including a cache memory and a disk drive, and a third storage system coupled to the first and second storage systems and including a third disk drive to provide a third logical volume based on the third disk drive. First and second write data is transmitted from the first storage system to the second storage system according to copy pair management information. A certain storage system, which is one of the first and second storage systems, destages the second write data from a cache memory of the certain storage system to the third logical volume in the third storage system according to a volume and storage conversion table in the certain storage system.

    摘要翻译: 数据存储系统包括第一和第二存储系统,每个包括高速缓冲存储器和磁盘驱动器,以及耦合到第一和第二存储系统的第三存储系统,并且包括第三磁盘驱动器,以基于 第三个磁盘驱动器。 第一和第二写入数据根据复制对管理信息从第一存储系统发送到第二存储系统。 作为第一和第二存储系统之一的某个存储系统根据第一和第二存储系统中的卷和存储转换表将第二写数据从特定存储系统的高速缓存存储器转移到第三存储系统中的第三逻辑卷 某些存储系统。

    Storage system with journal reflecting area control function
    7.
    发明申请
    Storage system with journal reflecting area control function 失效
    具有日志反射区域控制功能的存储系统

    公开(公告)号:US20070106855A1

    公开(公告)日:2007-05-10

    申请号:US11335150

    申请日:2006-01-18

    IPC分类号: G06F12/16

    摘要: This invention relates to data backup and data recovery in a computer system. An outputting unit updates data stored in a first area based on an update request of data from the host computer, a creating unit stores update data for the update request in a second area, a marker processing unit creates a marker containing information of the range, in which the data is stored, and information indicating whether or not the data is allowed to be stored in a third area based on a request of creating the marker from the host computer to store the created marker in the second area, and a reflecting unit refers to the marker, obtains the update data corresponding to the data storing range, which is stored prior to the marker, and reflects the obtained update data to the third area.

    摘要翻译: 本发明涉及计算机系统中的数据备份和数据恢复。 输出单元基于来自主计算机的数据的更新请求更新存储在第一区域中的数据,创建单元将更新请求的更新数据存储在第二区域中,标记处理单元创建包含范围信息的标记, 其中存储数据,以及指示是否允许数据被存储在第三区域中的信息,该信息是基于从主计算机创建标记的请求将所创建的标记存储在第二区域中的反映单元 是指标记,获取与标记之前存储的对应于数据存储范围的更新数据,并将获得的更新数据反映到第三区域。

    Dual writing device and its control method
    8.
    发明授权
    Dual writing device and its control method 有权
    双写装置及其控制方法

    公开(公告)号:US08332603B2

    公开(公告)日:2012-12-11

    申请号:US13363402

    申请日:2012-02-01

    IPC分类号: G06F12/14 G06F12/16

    摘要: A computer system and method which stores path definition information including a storage ID, a volume ID, and validities of paths between a host computer and a first or second storage system identified by the storage ID for accessing a volume identified by the volume ID in one of the storage systems, sends an I/O request via the paths, based on the path definition information, receives information indicating the storage and volume IDs, and updates the path definition information. During initial copying from the second to the first volume, validity corresponding to a first path is set to “Invalid” and validity corresponding to a second path is set to “Valid”. After completion of initial copying, the validity corresponding to the first path included in the path definition information is changed to “Valid.”

    摘要翻译: 一种计算机系统和方法,其存储路径定义信息,该路径定义信息包括存储ID,卷ID,以及由主机计算机与由该存储ID标识的第一或第二存储系统之间的路径的有效性,用于访问由一卷中的卷ID标识的卷 的存储系统,基于路径定义信息经由路径发送I / O请求,接收指示存储和卷ID的信息,并更新路径定义信息。 在从第二卷到第一卷的初始复制期间,对应于第一路径的有效性被设置为无效,并且与第二路径相对应的有效性被设置为有效。 在完成初始复制之后,将包含在路径定义信息中的第一路径的有效性改变为有效。

    DUAL WRITING DEVICE AND ITS CONTROL METHOD
    9.
    发明申请
    DUAL WRITING DEVICE AND ITS CONTROL METHOD 审中-公开
    双写设备及其控制方法

    公开(公告)号:US20090198896A1

    公开(公告)日:2009-08-06

    申请号:US12420339

    申请日:2009-04-08

    IPC分类号: G06F12/08

    摘要: A first storage system sets a storage area of a first disk drive as a first volume, and misrepresents an identifier of the storage system and an identifier of the first volume. A second storage system sets a storage area of a second disk drive as a second volume, and misrepresents an identifier of the storage system and an identifier of the second volume. The first storage system copies data of the first volume in the second volume. The second storage system copies data of the second volume in the first volume. A management computer determines whether there is a match between the data of the first volume and the data of the second volume. When it is determined that there is not match, the host computer accesses only one of the first volume and the second volume that stores the latest data.

    摘要翻译: 第一存储系统将第一磁盘驱动器的存储区域设置为第一卷,并且错误地表示存储系统的标识符和第一卷的标识符。 第二存储系统将第二磁盘驱动器的存储区域设置为第二卷,并且错误地表示存储系统的标识符和第二卷的标识符。 第一个存储系统复制第二个卷中第一个卷的数据。 第二存储系统复制第一卷中的第二卷的数据。 管理计算机确定第一卷的数据和第二卷的数据之间是否存在匹配。 当确定不匹配时,主机仅访问存储最新数据的第一卷和第二卷中的一个。

    Dual writing device and its control method
    10.
    发明申请
    Dual writing device and its control method 审中-公开
    双写装置及其控制方法

    公开(公告)号:US20070245106A1

    公开(公告)日:2007-10-18

    申请号:US11454860

    申请日:2006-06-19

    IPC分类号: G06F12/16 G06F12/00

    摘要: A first storage system sets a storage area of a first disk drive as a first volume, and misrepresents an identifier of the storage system and an identifier of the first volume. A second storage system sets a storage area of a second disk drive as a second volume, and misrepresents an identifier of the storage system and an identifier of the second volume. The first storage system copies data of the first volume in the second volume. The second storage system copies data of the second volume in the first volume. A management computer determines whether there is a match between the data of the first volume and the data of the second volume. When it is determined that there is not match, the host computer accesses only one of the first volume and the second volume that stores the latest data.

    摘要翻译: 第一存储系统将第一磁盘驱动器的存储区域设置为第一卷,并且错误地表示存储系统的标识符和第一卷的标识符。 第二存储系统将第二磁盘驱动器的存储区域设置为第二卷,并且错误地表示存储系统的标识符和第二卷的标识符。 第一个存储系统复制第二个卷中第一个卷的数据。 第二存储系统复制第一卷中的第二卷的数据。 管理计算机确定第一卷的数据和第二卷的数据之间是否存在匹配。 当确定不匹配时,主机仅访问存储最新数据的第一卷和第二卷中的一个。