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    • 2. 发明授权
    • Control path failover in an automated data storage library
    • 在自动化数据存储库中控制路径故障切换
    • US07318116B2
    • 2008-01-08
    • US10290362
    • 2002-11-08
    • Frank David GalloBrian Gerard GoodmanLeonard George Jesionowski
    • Frank David GalloBrian Gerard GoodmanLeonard George Jesionowski
    • G06F12/00G06F15/16G06F11/00
    • G06F11/1443G06F11/2007
    • A system, a method, and a computer program product to provide a failover procedure for an automated data storage library are provided. During the operation of a data storage library, a host computer issues control commands to the automated data storage library using one or more control paths. In the event that the host does not receive desirable results, such as when communication is lost between the host computer and the automated data storage library while a command is in process, the host computer may attempt to retry the same command using the same control path or an alternate control path. When the host issues a retry of the same command, the automated data storage library performs an examination of the command and one or more previous commands executed to prevent the automated data storage library from executing an identical command more than once.
    • 提供了一种用于为自动数据存储库提供故障切换过程的系统,方法和计算机程序产品。 在数据存储库的操作期间,主计算机使用一个或多个控制路径向自动数据存储库发出控制命令。 在主机没有收到期望的结果的情况下,例如当主机与自动数据存储库之间的通信在命令进行中时,主机计算机可能尝试使用相同的控制路径重试相同的命令 或替代控制路径。 当主机发出相同命令的重试时,自动数据存储库对该命令和一个或多个先前执行的命令进行检查,以防止自动数据存储库多次执行相同的命令。
    • 10. 发明授权
    • Method and system for reclaiming stacked volumes within a peripheral
data storage subsystem
    • 在外围数据存储子系统中回收堆叠卷的方法和系统
    • US5778391A
    • 1998-07-07
    • US716005
    • 1996-09-19
    • James Arthur FisherFrank David GalloGregory Tad Kishi
    • James Arthur FisherFrank David GalloGregory Tad Kishi
    • G06F3/06G11B27/00G11B27/36G06F17/30
    • G06F3/0607G06F3/0652G06F3/0686G11B27/002G11B27/36G11B2220/41Y10S707/99955
    • A method and system for reclaiming stacked volumes within a peripheral data storage subsystem is disclosed. In accordance with the method and system of the present invention, a database is interrogated to determine whether or not an opportunistic reclaim threshold of a stacked volume has been reached after a service request from a host computer has been performed on a stacked volume and while the stacked volume is still mounted. If the opportunistic reclaim threshold of the stacked volume has not been reached, the stacked volume is released and dismounted. However, if the reclaim threshold of the stacked volume has been reached, another determination is made as to whether or not a service request for the host computer is pending. If the host computer requires service, the stacked volume is again released and dismounted. Otherwise, if the host computer does not require service, at least one data set from the mounted stacked volume is opportunistically reclaimed while the stacked volume is still mounted.
    • 公开了一种在外围数据存储子系统内回收堆叠卷的方法和系统。 根据本发明的方法和系统,询问数据库以确定在已经对堆叠的卷执行来自主计算机的服务请求之后是否已经达到堆叠卷的机会回收阈值,并且在 堆叠体积仍然安装。 如果堆叠卷的机会回收阈值尚未达到,则堆放的卷被释放和卸载。 然而,如果已达到堆叠卷的回收阈值,则另外确定主计算机的服务请求是否待决。 如果主机需要服务,则堆叠卷再次被释放和卸载。 否则,如果主机不需要服务,则从安装的堆叠卷中至少有一个数据集可以机械地回收,而堆叠卷仍然安装。