Dynamic rewrite of files within deduplication system
    1.
    发明授权
    Dynamic rewrite of files within deduplication system 有权
    在重复数据删除系统中动态重写文件

    公开(公告)号:US08438139B2

    公开(公告)日:2013-05-07

    申请号:US12958200

    申请日:2010-12-01

    IPC分类号: G06F7/00

    CPC分类号: G06F17/30156

    摘要: A dynamic layer above a sequential deduplication file system (denoted as DFS) implements the rewrite functionality. A user file is composed of one or more DFS files. As incoming data is written into a user file, the data is written by the dynamic layer sequentially into DFS files, created one by one. For each user file this dynamic layer creates and maintains a dynamic metadata file, in a regular, non deduplicated file system. This metadata file contains entries pointing to sections of DFS files.

    摘要翻译: 顺序重复数据删除文件系统(表示为DFS)上的动态层实现重写功能。 用户文件由一个或多个DFS文件组成。 随着输入数据被写入用户文件,数据由动态层依次写入到DFS文件中,逐个创建。 对于每个用户文件,此动态层在常规的非重复数据删除的文件系统中创建和维护动态元数据文件。 此元数据文件包含指向DFS文件部分的条目。

    Tape storage emulation for open systems environments
    3.
    发明授权
    Tape storage emulation for open systems environments 有权
    用于开放系统环境的磁带存储仿真

    公开(公告)号:US08055870B2

    公开(公告)日:2011-11-08

    申请号:US12870536

    申请日:2010-08-27

    IPC分类号: G06F13/00

    摘要: A method according to one embodiment is performed in an environment wherein a plurality of backup hosts are connected to a plurality of virtual tape library servers (VTL servers) which in turn are connected to each of a plurality of disk library units (DLUs), each VTL server being adapted to receive tape storage commands, and in response to receiving a tape storage command, the respective VTL server accepts the tape storage command and responding as if the VTL server were the respective target tape storage device, and wherein data simultaneously streaming from the plurality of backup hosts is received by multiple of the VTL servers, where the multiple VTL servers receiving the simultaneously streamed data write to the same DLU.

    摘要翻译: 根据一个实施例的方法在多个备份主机连接到多个虚拟磁带库服务器(VTL服务器)的环境中执行,该虚拟磁带库服务器又连接到多个磁盘库单元(DLU)中的每一个,每个虚拟磁带库服务器 VTL服务器适于接收磁带存储命令,并且响应于接收磁带存储命令,相应的VTL服务器接受磁带存储命令并响应,如同VTL服务器是相应的目标磁带存储设备,并且其中数据同时从 多个备份主机由多个VTL服务器接收,其中接收同时流数据的多个VTL服务器写入同一DLU。

    Synchronization of replicated sequential access storage components
    5.
    发明授权
    Synchronization of replicated sequential access storage components 失效
    复制顺序访问存储组件的同步

    公开(公告)号:US08533412B2

    公开(公告)日:2013-09-10

    申请号:US13458741

    申请日:2012-04-27

    IPC分类号: G06F12/00

    CPC分类号: G06F17/30575 G06F11/1456

    摘要: A replication synchronization table (RST) is configured for the source instance. The RST is adapted for recording compacted information for at least one of a truncate and an erase operation applied on the source instance. The RST of the source instance is updated at a source component with the compacted information. The updated RST is transmitted from the source instance to the replicated instance. Based on the RST of the source instance and the RST of the replicated instance, data representative of a most recent position on the source component from which data should be transmitted to a replicated component to achieve a full synchronization is determined.

    摘要翻译: 为源实例配置了复制同步表(RST)。 RST适于记录应用在源实例上的截断和擦除操作中的至少一个的压缩信息。 源实例的RST在具有压缩信息的源组件上更新。 更新的RST从源实例传送到复制实例。 基于源实例的RST和复制实例的RST,确定表示数据应发送到复制组件以实现完全同步的源组件上的最新位置的数据。

    Synchronization of replicated sequential access storage components
    6.
    发明授权
    Synchronization of replicated sequential access storage components 有权
    复制顺序访问存储组件的同步

    公开(公告)号:US08296536B2

    公开(公告)日:2012-10-23

    申请号:US12539066

    申请日:2009-08-11

    IPC分类号: G06F12/00

    CPC分类号: G06F17/30575 G06F11/1456

    摘要: A replication synchronization table (RST) is configured for the source instance. The RST is adapted for recording compacted information for at least one of a truncate and an erase operation applied on the source instance. The RST of the source instance is updated at a source component with the compacted information. The updated RST is transmitted from the source instance to the replicated instance. Based on the RST of the source instance and the RST of the replicated instance, data representative of a most recent position on the source component from which data should be transmitted to a replicated component to achieve a full synchronization is determined.

    摘要翻译: 为源实例配置了复制同步表(RST)。 RST适于记录应用在源实例上的截断和擦除操作中的至少一个的压缩信息。 源实例的RST在具有压缩信息的源组件上更新。 更新的RST从源实例传输到复制实例。 基于源实例的RST和复制实例的RST,确定表示数据应发送到复制组件以实现完全同步的源组件上的最新位置的数据。

    SYNCHRONIZATION OF REPLICATED SEQUENTIAL ACCESS STORAGE COMPONENTS
    10.
    发明申请
    SYNCHRONIZATION OF REPLICATED SEQUENTIAL ACCESS STORAGE COMPONENTS 失效
    复制顺序访问存储组件的同步

    公开(公告)号:US20120215999A1

    公开(公告)日:2012-08-23

    申请号:US13458741

    申请日:2012-04-27

    IPC分类号: G06F12/16

    CPC分类号: G06F17/30575 G06F11/1456

    摘要: A replication synchronization table (RST) is configured for the source instance. The RST is adapted for recording compacted information for at least one of a truncate and an erase operation applied on the source instance. The RST of the source instance is updated at a source component with the compacted information. The updated RST is transmitted from the source instance to the replicated instance. Based on the RST of the source instance and the RST of the replicated instance, data representative of a most recent position on the source component from which data should be transmitted to a replicated component to achieve a full synchronization is determined.

    摘要翻译: 为源实例配置了复制同步表(RST)。 RST适于记录应用在源实例上的截断和擦除操作中的至少一个的压缩信息。 源实例的RST在具有压缩信息的源组件上更新。 更新的RST从源实例传输到复制实例。 基于源实例的RST和复制实例的RST,确定表示数据应发送到复制组件以实现完全同步的源组件上的最新位置的数据。