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    • 4. 发明授权
    • Mirrored volume replication method, apparatus, and system
    • 镜像卷复制方法,设备和系统
    • US07287181B2
    • 2007-10-23
    • US10811664
    • 2004-03-29
    • John Glenn Thompson
    • John Glenn Thompson
    • G06F11/00
    • B01L3/50851B01L3/50853B01L7/52B01L7/54B01L2300/046B01L2300/0829B01L2300/1822B01L2300/1827B01L2300/1844
    • A secondary volume of a mirrored volume pair is replicated by suspending the mirroring operations, associating a selected volume identifier with the secondary volume, replicating the secondary volume to a backup volume, and associating the original secondary volume identifier with the backup volume. In some embodiments the original secondary volume identifier is written to a hidden field on the secondary volume and the hidden field is copied to the backup volume identifier field after the replication. In some embodiments the actions of suspending the mirror operations, managing the volume identifiers, replicating the secondary volume to a backup volume, synchronizing the secondary volume with the primary volume, and reestablishing the mirror pair are performed as an automated sequence. The resultant replication method is less costly and error prone because it may be created by an automated process rather than manual commands issued by a system administrator.
    • 通过挂起镜像操作,将所选卷标识符与辅助卷相关联,将辅助卷复制到备份卷,以及将原始辅助卷标识符与备份卷进行关联来复制镜像卷对的辅助卷。 在一些实施例中,原始辅助卷标识符被写入副卷上的隐藏字段,并且隐藏字段在复制之后被复制到备份卷标识符字段。 在一些实施例中,作为自动序列来执行将镜像操作,管理卷标识符,将辅助卷复制到备份卷,将辅助卷与主卷进行同步以及重新建立镜像对的动作。 所产生的复制方法成本较低且容易出错,因为它可以由自动化过程创建,而不是系统管理员发出的手动命令。
    • 7. 发明授权
    • Backup by ID-suppressed instant virtual copy then physical backup copy with ID reintroduced
    • 通过ID抑制即时虚拟副本备份,然后重新引入ID的物理备份副本
    • US06557089B1
    • 2003-04-29
    • US09724129
    • 2000-11-28
    • David Charles ReedJohn Glenn Thompson
    • David Charles ReedJohn Glenn Thompson
    • G06F1216
    • G06F11/1458G06F11/1456Y10S707/99953Y10S707/99955
    • A backup copy of a source data volume is created by first performing an instant virtual copy with source volume identifier (ID) suspended, then creating a physical tape backup copy from the instant virtual copy with the source volume ID being reintroduced. This creates an exact duplicate of the source volume with minimal impact on access to the source volume. Moreover, the resultant backup copy is less costly and error prone because it is created by a machine-automated process rather than various commands issued by a system administrator. In addition, by differentiating the volume IDs during intermediate copy steps, the invention is more fault tolerant since failure of the storage subsystem will not result in source and a temporary copy having confusingly indistinguishable volume IDs.
    • 通过首先执行暂停的源卷标识符(ID)的即时虚拟副本,然后从重新引入源卷ID的即时虚拟副本创建物理磁带备份副本来创建源数据卷的备份副本。 这将创建源卷的完全重复,对对源卷的访问影响最小。 而且,最终的备份副本成本较低,容易出错,因为它是由机器自动化进程创建的,而不是系统管理员发出的各种命令。 另外,通过在中间复制步骤期间区分卷ID,本发明更容错,因为存储子系统的故障不会导致源和临时副本具有令人难以区分的不可区分的卷ID。