PARTIAL VOLUME ACCESS IN A PHYSICAL STACKED VOLUME
    21.
    发明申请
    PARTIAL VOLUME ACCESS IN A PHYSICAL STACKED VOLUME 有权
    物理堆积量的部分体积访问

    公开(公告)号:US20110276754A1

    公开(公告)日:2011-11-10

    申请号:US12775425

    申请日:2010-05-06

    IPC分类号: G06F12/00 G06F12/02 G06F12/16

    摘要: In one embodiment, a VTS system includes a tape volume cache, a storage drive for interacting with sequential access storage media; logic for receiving a mount request to access host data record(s) stored on a storage medium, the mount request including a virtual volume identifier of a logical volume and a logical block identifier of the first requested host data record therein; logic for issuing a locate command to position the sequential access storage medium to about a physical block in the logical volume having at least a portion of the requested host data record(s) therein based on the virtual volume identifier and the logical block identifier; logic for creating and supporting a partial virtual volume in the tape volume cache; and logic for copying at least the physical block to the partial virtual volume. Other systems, methods, and computer program products are also described, according to other embodiments.

    摘要翻译: 在一个实施例中,VTS系统包括磁带卷高速缓冲存储器,用于与顺序访问存储介质交互的存储驱动器; 用于接收用于访问存储在存储介质上的主机数据记录的安装请求的逻辑,所述安装请求包括其中的第一请求主机数据记录的逻辑卷的虚拟卷标识符和逻辑块标识符; 用于发布定位命令的逻辑,用于基于所述虚拟卷标识符和所述逻辑块标识符,将所述顺序存取介质定位在所述逻辑卷中具有所述主机数据记录的至少一部分的物理块; 在磁带卷高速缓存中创建和支持部分虚拟卷的逻辑; 以及至少将物理块复制到部分虚拟卷的逻辑。 根据其他实施例,还描述了其它系统,方法和计算机程序产品。

    Method and apparatus for handling multi-volume datasets in a tape storage system
    22.
    发明授权
    Method and apparatus for handling multi-volume datasets in a tape storage system 失效
    用于在磁带存储系统中处理多卷数据集的方法和装置

    公开(公告)号:US07565486B2

    公开(公告)日:2009-07-21

    申请号:US11235986

    申请日:2005-09-26

    IPC分类号: G06F12/08

    摘要: A method and apparatus for handling multi-volume datasets in a tape storage system are disclosed. In response to a write request for a multi-volume dataset, the information of the multi-volume dataset are captured by intercepting and deciphering a set of volume mount commands. Otherwise, the information of the multi-volume dataset are captured by snooping header information from a previous volume listed in a header of the multi-volume dataset. A chain of logical volume names that belongs to the multi-volume dataset is then built. Finally, the chain of logical volume names is then stored in a chain database.

    摘要翻译: 公开了一种在磁带存储系统中处理多卷数据集的方法和装置。 响应对多卷数据集的写入请求,多卷数据集的信息通过拦截和解密一组卷安装命令来捕获。 否则,多卷数据集的信息通过从多卷数据集的标题中列出的先前卷中的标头信息进行侦听来捕获。 然后构建属于多卷数据集的逻辑卷名称链。 最后,将逻辑卷名称链存储在链式数据库中。