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    • 1. 发明授权
    • Translation device driver for translating between disk device driver and tape device driver commands
    • 用于在磁盘设备驱动程序和磁带设备驱动程序命令之间进行翻译的翻译设备驱动程序
    • US07254672B1
    • 2007-08-07
    • US11026076
    • 2004-12-30
    • Thomas J. MurrayStephen H. Blendermann
    • Thomas J. MurrayStephen H. Blendermann
    • G06F12/00G06F13/00G06F13/28
    • G06F13/102G06F3/0607G06F3/0664G06F3/0686
    • A translation device driver apparatus and method are disclosed. A first type of request is received from a disk-based file system to access a first type of storage device. The first type of storage device permits direct access reads and writes and implements update-in-place data modification wherein individual blocks of data stored in the first type of storage device can be modified individually without invalidating data stored in any other blocks in the first type of storage device. The first type of request is translated into a second type of request. The second type of request is a request for a second type of storage device. The second type of storage device operates in append-only mode. The second type of storage device does not permit update-in-place data modification. The second type of request is forwarded to a storage system. The storage system is designed to be the second type of storage device. The storage system is modified to permit update-in-place data modification.
    • 公开了一种翻译装置驱动装置和方法。 从基于磁盘的文件系统接收第一类请求以访问第一类型的存储设备。 第一类型的存储设备允许直接访问读取和写入,并且实现就地更新数据修改,其中存储在第一类型的存储设备中的各个数据块可以单独修改,而不会使存储在第一类型中的任何其他块中的数据无效 的存储设备。 第一种类型的请求被转换成第二类请求。 第二类请求是对第二类型的存储设备的请求。 第二种类型的存储设备以追加模式运行。 第二种类型的存储设备不允许就地更新数据修改。 第二种类型的请求被转发到存储系统。 存储系统被设计为第二种类型的存储设备。 修改存储系统以允许就地更新数据修改。
    • 3. 发明授权
    • Method for reclaiming fragmented space on a physical data storage
cartridge
    • 回收物理数据存储盒上碎片空间的方法
    • US06151666A
    • 2000-11-21
    • US85192
    • 1998-05-27
    • Stephen H. BlendermannAlan Ray Sutton
    • Stephen H. BlendermannAlan Ray Sutton
    • G06F12/02G06F3/06G06F12/00
    • G06F3/0608G06F3/0652G06F3/0686
    • The present invention provides a method for selectively reclaiming fragmented space on a multiple volume cartridge (MVC) device using a cost-benefit type analysis to determine whether making the fragmented space useable justifies moving all nonexpired data volume sets to another MVC. The present invention analyzes the allocation of space on the MVC to determine the location and size of any gaps between nonexpired data volume sets. Any gaps appearing at the end of the MVC are automatically reallocated for subsequent use. Any gaps appearing between nonexpired data volume sets are analyzed to determine whether the size and location meet predetermined criteria before moving any of the nonexpired data volume sets. In addition, the present invention allows selective movement of less than all of the nonexpired data volume sets if the size of the separating gap is larger than any nonexpired data volume sets appearing after the gap.
    • 本发明提供了一种使用成本效益型分析来选择性地回收多容量盒(MVC)装置上的碎片空间的方法,以确定是否使可分散的空间使得将所有非抽象数据卷集移动到另一个MVC成为正当理由。 本发明分析了MVC上的空间分配,以确定非抽象数据卷集之间的任何间隙的位置和大小。 出现在MVC结尾处的任何间隙将自动重新分配用于后续使用。 分析在非抽头数据卷集之间出现的任何间隙,以确定在移动任何非抽象数据卷集之前,大小和位置是否满足预定标准。 此外,如果分离间隙的大小大于在间隙之后出现的任何非抽象数据量集合,本发明允许小于所有非抽头数据量集合的选择性移动。
    • 7. 发明授权
    • Method for verifying availability of data space in virtual tape system
    • 验证虚拟磁带系统中数据空间的可用性的方法
    • US06289425B1
    • 2001-09-11
    • US09108888
    • 1998-07-01
    • Stephen H. BlendermannAlan Ray Sutton
    • Stephen H. BlendermannAlan Ray Sutton
    • G06F1200
    • G06F12/08
    • A method for verifying availability of reusable data space on a selected virtual scratch tape in a virtual tape system utilizes volume label information routinely maintained in an external tape inventory management arrangement to generate labels separate from the actual volume labels stored on a corresponding tape. The volume labels are generated in a format compatible for input to an external tape management system after the selected virtual scratch tape has been mounted on a virtual tape drive. The “on-the-fly” generation of the separate volume labels based on preexisting label information allows the present invention to significantly reduce processing time and needless data transfers typically required to verify whether a scratch tape can in fact be reused, thereby increasing overall efficiency in data storage management and storage space utilization.
    • 用于验证虚拟磁带系统中所选择的虚拟临时磁带上的可重用数据空间的可用性的方法使用常规维护在外部磁带库存管理装置中的卷标信息来生成与存储在相应磁带上的实际卷标签分离的标签。 在将所选虚拟暂存磁带安装到虚拟磁带驱动器上之后,卷标以与外部磁带管理系统的输入兼容的格式生成。 基于先前存在的标签信息的单独卷标签的“即时”生成允许本发明显着地减少处理时间和通常需要的不必要的数据传输,以验证是否可以重复使用暂存带,从而提高整体效率 在数据存储管理和存储空间利用方面。