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    • 1. 再颁专利
    • Method and system for automated termination and resumption in a time zero backup copy process
    • 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
    • USRE37038E1
    • 2001-01-30
    • US08521600
    • 1995-08-31
    • Lawrence E. EastridgeRobert Frederic KernWilliam Frank MickaClaus William MikkelsenJames Mitchell Ratliff
    • Lawrence E. EastridgeRobert Frederic KernWilliam Frank MickaClaus William MikkelsenJames Mitchell Ratliff
    • H03K19003
    • G06F11/1461Y10S707/99953
    • 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.
    • 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。
    • 3. 发明授权
    • Asynchronously shadowing record updates in a remote copy session using
track arrays
    • 使用轨道数组异步地在远程复制会话中镜像记录更新
    • US5720029A
    • 1998-02-17
    • US506490
    • 1995-07-25
    • Robert Frederic KernWilliam Frank MickaClaus William MikkelsenRobert Wesley ShomlerWarren Keith StanleyRichard Kent Treiber
    • Robert Frederic KernWilliam Frank MickaClaus William MikkelsenRobert Wesley ShomlerWarren Keith StanleyRichard Kent Treiber
    • G06F11/20G06F11/00
    • G06F11/2074G06F11/2064
    • A disaster recovery system providing asynchronous remote data shadowing between a primary and a secondary site uses a pair of track arrays for each primary data storage device of a remote copy pair to monitor which record updates are in transit between the primary site and the secondary site. A host processor at the primary site of the disaster recovery system transfers a sequentially consistent order of copies of record updates to the secondary site for back-up purposes. The copied record updates are stored on the secondary data storage devices which form remote copy pairs with the primary data storage devices at the primary site. One track array, the active track array, is used to set elements according to which tracks on the primary data storage device receive record updates from the host processor at the primary site. The other track array, the recovery track array, designates which record updates comprise the copied record updates currently transferred from the primary site to the secondary site for data shadowing and is used for recovery should an error interrupt the transfer. The track arrays are toggled once the consistency group transfer completes, the recovery track array becoming the active track array and the active track array becoming the recovery track array.
    • 在主站点和辅助站点之间提供异步远程数据镜像的灾难恢复系统使用远程副本对的每个主数据存储设备的一对轨道阵列来监视主站点和辅助站点之间传输的记录更新。 在灾难恢复系统的主站点处的主机处理器将记录更新的副本顺序传送到辅助站点以进行备份。 复制的记录更新存储在辅助数据存储设备上,其与主站点上的主数据存储设备形成远程副本对。 一个磁道阵列,主动磁道阵列,用于根据主数据存储设备的哪些磁道在主站点处从主机处理器接收记录更新来设置元素。 另一个轨道阵列(恢复轨道阵列)指定哪个记录更新包括当前从主站点传送到次站点的复制记录更新以用于数据阴影,并且如果错误中断传输,则用于恢复。 一旦一致性组传输完成,轨道阵列就会切换,恢复轨道阵列成为主动轨道阵列,而主动轨道阵列成为恢复轨道阵列。
    • 4. 再颁专利
    • Method and system for sidefile status polling in a time zero backup copy process
    • 在时间零备份复制过程中进行侧文件状态轮询的方法和系统
    • USRE37364E1
    • 2001-09-11
    • US08521712
    • 1995-08-31
    • Oded CohnMichael Howard HartungWilliam Frank MickaJohn Norbert McCauley, Jr.Claus William MikkelsenKenneth Michael NaginYoram NovickAlexander Winokur
    • Oded CohnMichael Howard HartungWilliam Frank MickaJohn Norbert McCauley, Jr.Claus William MikkelsenKenneth Michael NaginYoram NovickAlexander Winokur
    • G06F1100
    • G06F11/1466G06F11/1458G06F11/1461G06F11/1469
    • A method and system are disclosed for enhanced efficiency of backup copying of designated datasets stored within a plurality of storage devices coupled to the data processing system via a storage subsystem control unit having subsystem memory therein. Application execution within the data processing system is temporarily suspended long enough to form a dataset logical-to-physical system address concordance to be utilized to administer copying of the designated dataset. Thereafter, application initiated updates to uncopied portions of the designated datasets are temporarily deferred until sidefiles of the affected portions of the designated datasets are written to subsystem memory. The updates are then written to the storage subsystem. Portions of the designated datasets are then accessed and copied from the storage subsystem on a scheduled or opportunistic basis utilizing selected data retrieval command sequences. A sidefile status query is appended to selected data retrieval command sequences and the presence of data within the subsystem memory is determined without the necessity of additional communications between the data processing system and the storage subsystem. The sidefiles are then accessed and copied. Copied portions of the designated datasets and sidefiles are then copied to alternate storage locations in a backup copy order defined by the address concordance.
    • 公开了一种方法和系统,用于通过其中具有子系统存储器的存储子系统控制单元提高存储在与数据处理系统耦合的多个存储设备中的指定数据集的备份复制效率。 数据处理系统内的应用程序执行暂时被暂停,以形成用于管理指定数据集复制的数据集逻辑到物理系统地址一致性。 此后,临时延迟对指定数据集的未封闭部分的应用发起的更新,直到指定数据集的受影响部分的副文件被写入子系统存储器。 然后将更新写入存储子系统。 然后使用所选择的数据检索命令序列,以预定的或机会的方式从存储子系统访问和复制指定数据集的一部分。 辅助文件状态查询被附加到所选择的数据检索命令序列,并确定子系统存储器内的数据的存在,而不需要数据处理系统和存储子系统之间的附加通信。 然后访问和复制文件。 指定数据集和副文件的复制部分然后以地址一致性定义的备份复制顺序复制到备用存储位置。
    • 5. 发明申请
    • METHOD, SYSTEM, AND ARTICLE OF MANUFACTURE FOR MIRRORING DATA AT STORAGE LOCATIONS
    • 在存储位置制作数据的方法,系统和制造
    • US20090013014A1
    • 2009-01-08
    • US12234538
    • 2008-09-19
    • Robert Frederic KernWilliam Frank MickaGail Andrea SpearDavid B. Petersen
    • Robert Frederic KernWilliam Frank MickaGail Andrea SpearDavid B. Petersen
    • G06F17/30
    • G06F11/2058G06F11/2069G06F11/2071Y10S707/99953Y10S707/99955
    • 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.
    • 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。
    • 6. 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
    • 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
    • US5692155A
    • 1997-11-25
    • US424930
    • 1995-04-19
    • James Lincoln IskiyanRobert Frederic KernWilliam Frank MickaRobert Wesley Shomler
    • James Lincoln IskiyanRobert Frederic KernWilliam Frank MickaRobert Wesley Shomler
    • G06F12/16G06F3/06G06F11/20G06F12/08G06F13/00
    • G06F11/2082G06F11/2064
    • 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.
    • 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。