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    • 1. 再颁专利
    • Method and system for incremental time zero backup copying of data
    • 增量时间零备份复制数据的方法和系统
    • USRE37601E1
    • 2002-03-19
    • US08559509
    • 1995-11-15
    • Lawrence Elwood EastridgeRobert Frederic KernJames Mitchell Ratliff
    • Lawrence Elwood EastridgeRobert Frederic KernJames Mitchell Ratliff
    • G06F1100
    • G06F11/1451G06F11/1461G06F11/1466
    • Backup copying of designated datasets representing a first selected point in time consistency may be performed in a data processing system on an attached storage subsystem concurrent with data processing system application execution by first suspending application execution only long enough to form a logical-to-physical address concordance, and thereafter physically backing up the datasets on the storage subsystem on a scheduled or opportunistic basis. An indication of each update to a selected portion of the designated datasets which occurs after the first selected point in time is stored and application initiated updates to uncopied designated datasets are first buffered. Thereafter, sidefiles are made of the affected datasets, or portions thereof, the updates are then written through to the storage subsystem, and the sidefiles written to an alternate storage location in backup copy order, as controlled by the address concordance. At a subsequent point in time only those portions of the designated datasets which have been updated after the first selected period and time are copied, utilizing an identical technique.
    • 可以在与数据处理系统应用程序执行同时进行的附加存储子系统上的数据处理系统中执行表示第一选定时间点一致性的指定数据集的备份复制,这仅仅是长时间地暂停应用程序执行以形成逻辑到物理地址 一致性,然后在计划或机会主义的基础上物理备份存储子系统上的数据集。 对存储在第一选定时间点之后发生的指定数据集的选定部分的每个更新的指示被存储,并且首先缓冲对未被覆盖的指定数据集的应用发起的更新。 此后,侧面文件由受影响的数据集或其部分组成,然后将更新写入存储子系统,并且以由备份复制顺序写入备用存储位置的侧文件由地址一致性控制。 在随后的时间点,仅使用相同的技术复制在第一选定的周期和时间之后被更新的指定数据集的那些部分。
    • 4. 发明授权
    • Multi-drive data storage system with analysis and selected demounting of idle data storage media
    • 多驱动数据存储系统,分析和选择拆卸空闲数据存储介质
    • US06446160B1
    • 2002-09-03
    • US09672072
    • 2000-09-28
    • Cuong Minh LeJerry Wayne PenceJames Mitchell Ratliff
    • Cuong Minh LeJerry Wayne PenceJames Mitchell Ratliff
    • G06F1200
    • G06F3/061G06F3/0634G06F3/0686G06F11/1456
    • In a data storage system that employs multiple storage drives to access removable data storage media, idle data storage media are analyzed and than selectively demounted by automated equipment to increase storage drive availability and also minimize unnecessary mount/demount operations. Initially, the system establishes a maximum permitted number of concurrently mounted idle storage media, and also establishes a maximum permitted length of time for leaving idle storage media mounted. Next, storage media mounted to the media drives are analyzed for possible demounting. The system determines how many storage media are presently mounted, and each media's mount time. Then, the system identifies suitable demounting candidates (if any) to comply with the established maximums. Namely, the system identifies the media with the greatest idle times whose demounting is necessary to both (1) reduce the number of concurrent mounts down to the maximum permitted number, and (2) demount any storage media with idle times exceeding the maximum permitted length of time..
    • 在采用多个存储驱动器来访问可移动数据存储介质的数据存储系统中,分析空闲数据存储介质,而不是由自动化设备选择性地拆卸,以增加存储驱动器的可用性,并且还可以最大限度地减少不必要的安装/拆卸操作。 最初,系统建立同时安装的空闲存储介质的最大允许数量,并且还建立用于离开空闲存储介质的最大允许时间长度。 接下来,分析安装到介质驱动器的存储介质以进行拆卸。 该系统确定当前安装的存储介质和每个介质的安装时间。 然后,系统识别合适的拆卸候选人(如果有的话)符合规定的最大值。 即,系统识别具有最大空闲时间的介质,其拆卸是必要的(1)将并发安装数量减少到最大允许数量,以及(2)将空闲时间超过最大允许长度的任何存储介质拆卸 的时间..
    • 8. 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。