Method and system for automated termination and resumption in a time zero backup copy process
    11.
    再颁专利
    Method and system for automated termination and resumption in a time zero backup copy process 失效
    在零时间零备份复制过程中自动终止和恢复的方法和系统

    公开(公告)号:USRE37038E1

    公开(公告)日:2001-01-30

    申请号:US08521600

    申请日:1995-08-31

    IPC分类号: H03K19003

    CPC分类号: G06F11/1461 Y10S707/99953

    摘要: A method in a data processing system for automatically terminating or resuming backup copy sessions after an abnormal interrupt or reset notification occurrence during a backup copy process. A status indication is entered into activity tables associated with a plurality of storage subsystems and devices within a data processing system in response to initiation of a backup copy session. Status indications are then entered upon successful completion of a backup copy session within the data processing system. The indications within the activity tables are reviewed to determine the status of a backup copy session upon restarting a resource manager, abnormal termination of a backup copy program, or an operating system initial program load. If a backup copy session has been initiated but not completed, the backup copy session is then terminated. The indications within the activity tables are also reviewed to determine the status of a backup copy session if a reset notification is raised by a storage subsystem. The tracks extents which are active for a volume associated with a particular session identification are determined. A comparison is then made between the tracks extents which are active and the volume and extent information associated with a physical session identification. If a match exists between the tracks extents which are active and the volume and extent information associated with a physical session identification, the backup copy session resumes. If a match does not exist, the backup copy session is terminated.

    摘要翻译: 数据处理系统中的方法,用于在备份复制过程中发生异常中断或复位通知后自动终止或恢复备份复制会话。 响应于启动备份复制会话,将状态指示输入到与数据处理系统内的多个存储子系统和设备相关联的活动表中。 然后在数据处理系统中成功完成备份复制会话后输入状态指示。 审查活动表中的指示以确定在重新启动资源管理器时备份副本会话的状态,备份副本程序的异常终止或操作系统初始程序加载。 如果备份副本会话已启动但尚未完成,则备份副本会话将被终止。 如果存储子系统引起重置通知,还会检查活动表中的指示,以确定备份副本会话的状态。 确定与特定会话标识相关联的卷活动的磁道扩展区。 然后进行有效的轨迹区域和与物理会话标识相关联的音量和范围信息之间的比较。 如果在活动的磁盘盘区和与物理会话标识相关的卷和扩展信息之间存在匹配,则恢复备份拷贝会话。 如果匹配不存在,则备份副本会话终止。

    Method and apparatus for suspending multiple duplex pairs during back up
processing to insure storage devices remain synchronized in a sequence
consistent order
    13.
    发明授权
    Method and apparatus for suspending multiple duplex pairs during back up processing to insure storage devices remain synchronized in a sequence consistent order 失效
    在备份处理期间暂停多个双工对以确保存储设备的方法和装置保持以顺序一致的顺序同步

    公开(公告)号:US5692155A

    公开(公告)日:1997-11-25

    申请号:US424930

    申请日:1995-04-19

    CPC分类号: G06F11/2082 G06F11/2064

    摘要: A data storage system atomically suspends multiple duplex pairs across either a single storage subsystem or multiple storage subsystems. The duplex pairs are suspended such that the data on the secondary DASDs of the duplex pairs is maintained in a sequence consistent order. A host processor in the data storage system running an application generates records and record updates to be written to the primary DASDs of the duplex pairs. The storage controller directs copies of the records and record updates to the secondary DASDs of the duplex pairs. Sequence consistency is maintained on the secondary DASDs by quiescing the duplex pairs and then suspending the duplex pairs with change recording. Quiescing the duplex pairs allows any current write I/O in progress to complete to the primary DASD. The storage controller then locks out any subsequent write I/O from the host processor by raising a long busy signal to such subsequent write requests. Suspending the duplex pairs with change recording directs the storage controller to mark the physical address of the primary DASD which the application in the host processor updates between the time the duplex pair is suspended and then is reestablished.

    摘要翻译: 数据存储系统通过单个存储子系统或多个存储子系统原子地挂起多个双工对。 双工对被暂停,使得双工对的辅助DASD上的数据以顺序一致的顺序被维持。 运行应用程序的数据存储系统中的主机处理器生成记录并记录要写入双工对的主DASD的更新。 存储控制器指示记录的副本并记录更新到双工对的辅助DASD。 通过停止双工对,然后通过更改记录来挂起双工对,在辅助DASD上维持序列一致性。 停止双工对允许正在进行的任何当前写I / O完成到主DASD。 然后,存储控制器通过将长忙信号提升到这样的后续写请求来锁定来自主处理器的任何后续写入I / O。 使用更改记录挂起双工对可指示存储控制器标记主DASD的物理地址,主DASD的应用程序在双工对暂停时间然后被重新建立之间更新。

    Method, system, and article of manufacture for mirroring data at storage locations
    14.
    发明授权
    Method, system, and article of manufacture for mirroring data at storage locations 有权
    在存储位置镜像数据的方法,系统和制造

    公开(公告)号:US08209282B2

    公开(公告)日:2012-06-26

    申请号:US12234538

    申请日:2008-09-19

    IPC分类号: G06F7/00 G06F17/00

    摘要: Provided are a system and article of manufacture for mirroring data. A mirror policy indicating volumes in a first storage system is processed to mirror to volumes in a second storage system and volumes in the second storage system to mirror to volumes in a third storage system. The third storage system is at a first geographical location remote with respect to a second geographical location including the first and second storage systems. A command is transmitted to cause the copying of updates to the volumes in the first storage system to corresponding volumes in the second storage system indicated in the mirror policy. Upon an occurrence of an event, the causing the suspension of the copying of updates to the volumes in the first storage system indicated in the mirroring policy to the volumes in the second storage system. During the suspension of the copying of volumes between the first and second storage systems, causing the copying of updates to the volumes in the second storage system indicated in the mirroring policy to the volumes in the third storage system indicated in the mirroring policy.

    摘要翻译: 提供了用于镜像数据的系统和制品。 指示指示第一存储系统中的卷的镜像策略被镜像到第二存储系统中的卷和第二存储系统中的卷以镜像到第三存储系统中的卷。 第三存储系统位于相对于包括第一和第二存储系统的第二地理位置的远端的第一地理位置处。 发送命令以使得将第一存储系统中的卷的更新复制到镜像策略中指示的第二存储系统中的相应卷。 在发生事件时,导致将在镜像策略中指示的第一存储系统中的卷的更新复制到第二存储系统中的卷的暂停。 在暂停在第一和第二存储系统之间的卷的复制期间,导致将在镜像策略中指示的第二存储系统中的卷的更新复制到镜像策略中指示的第三存储系统中的卷。

    SYSTEM AND ARTICLE OF MANUFACTURE FOR MIRRORING DATA AT STORAGE LOCATIONS
    16.
    发明申请
    SYSTEM AND ARTICLE OF MANUFACTURE FOR MIRRORING DATA AT STORAGE LOCATIONS 有权
    在存储位置制作数据的系统和制品

    公开(公告)号:US20090019096A1

    公开(公告)日:2009-01-15

    申请号:US12233535

    申请日:2008-09-18

    IPC分类号: G06F17/30

    摘要: Provided is a system and article of manufacture for mirroring data. A mirror policy indicating volumes in a first storage system is processed to mirror to volumes in a second storage system and volumes in the second storage system to mirror to volumes in a third storage system. The third storage system is at a first geographical location remote with respect to a second geographical location including the first and second storage systems. A command is transmitted to cause the copying of updates to the volumes in the first storage system to corresponding volumes in the second storage system indicated in the mirror policy. Upon an occurrence of an event, the causing the suspension of the copying of updates to the volumes in the first storage system indicated in the mirroring policy to the volumes in the second storage system. During the suspension of the copying of volumes between the first and second storage systems, causing the copying of updates to the volumes in the second storage system indicated in the mirroring policy to the volumes in the third storage system indicated in the mirroring policy.

    摘要翻译: 提供了用于镜像数据的系统和制品。 指示指示第一存储系统中的卷的镜像策略被镜像到第二存储系统中的卷和第二存储系统中的卷以镜像到第三存储系统中的卷。 第三存储系统位于相对于包括第一和第二存储系统的第二地理位置的远端的第一地理位置处。 发送命令以使得将第一存储系统中的卷的更新复制到镜像策略中指示的第二存储系统中的相应卷。 在发生事件时,导致将在镜像策略中指示的第一存储系统中的卷的更新复制到第二存储系统中的卷的暂停。 在暂停在第一和第二存储系统之间的卷的复制期间,导致将在镜像策略中指示的第二存储系统中的卷的更新复制到镜像策略中指示的第三存储系统中的卷。

    Method for mirroring data at storage locations
    17.
    发明授权
    Method for mirroring data at storage locations 有权
    在存储位置镜像数据的方法

    公开(公告)号:US07467168B2

    公开(公告)日:2008-12-16

    申请号:US10465111

    申请日:2003-06-18

    IPC分类号: G06F12/00 G06F17/30

    摘要: Provided is a method for mirroring data. A mirror policy indicating volumes in a first storage system is processed to mirror to volumes in a second storage system and volumes in the second storage system to mirror to volumes in a third storage system. The third storage system is at a first geographical location remote with respect to a second geographical location including the first and second storage systems. A command is transmitted to cause the copying of updates to the volumes in the first storage system to corresponding volumes in the second storage system indicated in the mirror policy. Upon an occurrence of an event, the causing the suspension of the copying of updates to the volumes in the first storage system indicated in the mirroring policy to the volumes in the second storage system. During the suspension of the copying of volumes between the first and second storage systems, causing the copying of updates to the volumes in the second storage system indicated in the mirroring policy to the volumes in the third storage system indicated in the mirroring policy.

    摘要翻译: 提供了一种镜像数据的方法。 指示指示第一存储系统中的卷的镜像策略被镜像到第二存储系统中的卷和第二存储系统中的卷以镜像到第三存储系统中的卷。 第三存储系统位于相对于包括第一和第二存储系统的第二地理位置的远端的第一地理位置处。 发送命令以使得将第一存储系统中的卷的更新复制到镜像策略中指示的第二存储系统中的相应卷。 在发生事件时,导致将在镜像策略中指示的第一存储系统中的卷的更新复制到第二存储系统中的卷的暂停。 在暂停在第一和第二存储系统之间的卷的复制期间,导致将在镜像策略中指示的第二存储系统中的卷的更新复制到镜像策略中指示的第三存储系统中的卷。

    Method, system, and program for handling a failover to a remote storage location
    19.
    发明授权
    Method, system, and program for handling a failover to a remote storage location 有权
    用于处理到远程存储位置的故障切换的方法,系统和程序

    公开(公告)号:US07043665B2

    公开(公告)日:2006-05-09

    申请号:US10465726

    申请日:2003-06-18

    IPC分类号: G06F12/16

    摘要: Provided are a method, program, and system for managing data. A mirror policy is processed indicating volumes in a first storage system to mirror to volumes in a second storage system and volumes in the second storage system to mirror to volumes in a third storage system, wherein the third storage system is at a first geographical location remote with respect to a second geographical location including the first and second storage systems. A failure is detected of the first and second storage systems at the first geographical location. Automatic reconfiguration is made to network resources directing I/O requests to volumes in the first storage system to direct I/O requests to volumes in the third storage system. A failure of the first storage system and the availability of the second storage system is detected and, in response, network resources are reconfigured to direct I/O requests to volumes in the first storage system to volumes in the second storage system in response to detecting the failure of the first storage system and the availability of the second storage system. Updates to the second storage system are copied to the third storage system after reconfiguring network resources to direct I/O requests to volumes in the first storage system to volumes in the second storage system.

    摘要翻译: 提供了一种用于管理数据的方法,程序和系统。 处理镜像策略,其指示第一存储系统中的卷映射到第二存储系统中的卷并且将第二存储系统中的卷映射到第三存储系统中的卷,其中第三存储系统处于第一地理位置的远程 涉及包括第一和第二存储系统的第二地理位置。 在第一地理位置处检测到第一和第二存储系统的故障。 自动重新配置将I / O请求指向第一个存储系统中的卷的网络资源,以将I / O请求指向第三个存储系统中的卷。 检测到第一存储系统的故障和第二存储系统的可用性,并且作为响应,重新配置网络资源以响应于检测到将I / O请求定向到第一存储系统中的卷到第二存储系统中的卷 第一个存储系统的故障和第二个存储系统的可用性。 在重新配置网络资源之后,将第二存储系统的更新复制到第三存储系统,以将I / O请求指向第一存储系统中的卷到第二存储系统中的卷。

    Data storage system with outboard physical data transfer operation utilizing data path distinct from host
    20.
    发明授权
    Data storage system with outboard physical data transfer operation utilizing data path distinct from host 失效
    数据存储系统利用与主机不同的数据路径进行外部物理数据传输操作

    公开(公告)号:US06202124B1

    公开(公告)日:2001-03-13

    申请号:US09073375

    申请日:1998-05-05

    IPC分类号: G06F1200

    摘要: A data storage system includes an outboard data transfer module that directs data transfer operations without requiring substantial host involvement. This subsystem includes a host computer, one or more digital data storage devices, one or more device controllers interposed between the host computer and the storage devices, and a outboard data manager coupled to the host and the device controllers. Data transfer operations are initiated when the outboard data manager receives a data transfer request from the host. The request identifies the type of operation, resulting target format, source data residing on one or more source devices, and one or more target devices. In response to this request, the outboard data manager retrieves a copy of the source data from the source device(s), formats target data according to host instruction, and then transmits the copy to the target device(s) for storage therein. Thus, source data is copied from source to target storage device(s) via the outboard data manager without burdening the host by routing data through it. Some exemplary data transfer operations include copy, migrate, recall, backup, restore, move, defragment, reorganize, and the like.

    摘要翻译: 数据存储系统包括外部数据传输模块,其指导数据传送操作,而不需要大量的主机参与。 该子系统包括主计算机,一个或多个数字数据存储设备,插入在主计算机和存储设备之间的一个或多个设备控制器,以及耦合到主机和设备控制器的外部数据管理器。 当外部数据管理器从主机接收到数据传输请求时,启动数据传输操作。 请求标识操作的类型,结果目标格式,驻留在一个或多个源设备上的源数据以及一个或多个目标设备。 响应于该请求,外部数据管理器从源设备检索源数据的副本,根据主机指令格式化目标数据,然后将该副本发送到目标设备以存储在其中。 因此,源数据通过外部数据管理器从源复制到目标存储设备,而不会通过路由数据来负担主机。 一些示例性数据传输操作包括复制,迁移,调用,备份,恢复,移动,碎片整理,重组等。