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    VOLUME INITIALIZATION FOR ASYNCHRONOUS MIRRORING
    3.
    发明申请
    VOLUME INITIALIZATION FOR ASYNCHRONOUS MIRRORING 有权
    用于异步反射的体积初始化

    公开(公告)号：US20140229692A1

    公开(公告)日：2014-08-14

    申请号：US13764031

    申请日：2013-02-11

    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION

    Inventor： Itzhack GOLDBERG ,  Michael KELLER ,  Moriel LECHTMAN ,  Orit NISSAN-MESSING ,  Eliyahu WEISSBREM

    IPC: G06F3/06

    CPC classification number: G06F17/30578 ,  G06F3/0614 ,  G06F3/065 ,  G06F3/067 ,  G06F11/14 ,  G06F11/1451 ,  G06F11/1469 ,  G06F11/2064 ,  G06F11/2069 ,  G06F11/2074 ,  G06F11/2082 ,  G06F2201/84

    Abstract: Methods, apparatus and computer program products implement embodiments of the present invention that include conveying first data from local regions of a local volume of a local storage system to a remote storage system having a remote volume with remote regions in a one-to-one correspondence with the local regions. While conveying the first data, a request is received to update a given local region, and the given local region is marked. Subsequent to conveying the first data, a local snapshot referencing the local regions is created, and second data is conveyed from the marked local region to the remote storage system.

    Abstract translation: 方法，装置和计算机程序产品实现本发明的实施例，其包括将本地存储系统的本地卷的本地区域的第一数据传送到具有一对一对应的具有远程区域的远程卷的远程存储系统 与当地区域。 在传送第一数据的同时，接收到请求以更新给定的局部区域，并且给定的局部区域被标记。 在传送第一数据之后，创建引用局部区域的本地快照，并且将第二数据从标记的本地区域传送到远程存储系统。

    EFFICIENT HANDING OF SEMI-ASYNCHRONOUS RAID WRITE FAILURES
    4.
    发明申请
    EFFICIENT HANDING OF SEMI-ASYNCHRONOUS RAID WRITE FAILURES 有权
    高效地处理半自动RAID写入故障

    公开(公告)号：US20150278019A1

    公开(公告)日：2015-10-01

    申请号：US14225692

    申请日：2014-03-26

    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION

    Inventor： Christophe FAGIANO ,  Itzhack GOLDBERG ,  Carl E. JONES ,  Moriel LECHTMAN ,  Neil SONDHI

    IPC: G06F11/10 ,  G06F11/14 ,  G06F11/20

    CPC classification number: G06F11/2069 ,  G06F3/0619 ,  G06F3/065 ,  G06F3/0689 ,  G06F11/1092 ,  G06F11/1451 ,  G06F11/2074 ,  G06F11/2082 ,  G06F2201/805

    Abstract: For efficient handing of semi-asynchronous RAID write failures using a processor device in a computing environment, a write operation is committed on a primary copy of data on a primary entity while sending the data to a secondary entity while awaiting an acknowledgment by the secondary entity. The acknowledgment indicates to the primary entity that metadata for the write operation has arrived at the secondary entity without necessarily indicating the data has arrived at the secondary entity. The acknowledgment is sent from the secondary entity regardless of a write failure and allowing the secondary entity to perform a recovery operation if a write failure occurs.

    Abstract translation: 为了在计算环境中使用处理器设备有效地处理半异步RAID写入故障，在主实体上的数据的主副本上提交写入操作，同时在等待第二实体的确认的同时将数据发送到辅助实体 。 确认向主实体指示用于写入操作的元数据已经到达次级实体，而不必指示数据已经到达次级实体。 无论写入故障如何，都从次级实体发送确认，并允许辅助实体在发生写入失败时执行恢复操作。

    OPTIMIZING STORAGE UTILIZATION BY MODIFYING A LOGICAL VOLUME OFFSET
    5.
    发明申请
    OPTIMIZING STORAGE UTILIZATION BY MODIFYING A LOGICAL VOLUME OFFSET 有权
    通过修改逻辑卷优化优化存储利用

    公开(公告)号：US20150006833A1

    公开(公告)日：2015-01-01

    申请号：US13927628

    申请日：2013-06-26

    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION

    Inventor： Ofer AHARON ,  Itzhack GOLDBERG ,  Shai HARONY ,  Moriel LECHTMAN

    IPC: G06F3/06

    CPC classification number: G06F3/0629 ,  G06F3/0604 ,  G06F3/0608 ,  G06F3/0644 ,  G06F3/0665 ,  G06F3/0683 ,  G06F2212/7202

    Abstract: Methods, apparatus and computer program products implement embodiments of the present invention that include arranging a first multiple of storage slices to store a second multiple of logical volumes, and assigning a respective offset to each of the logical volumes. Each of the logical volumes are then configured to start storing data at a first of the storage slices indicated by the assigned respective offset. In operation, data can be stored to a slice indicated by the assigned offset and an internal volume offset. Subsequent to configuring each of the logical volumes, one the storage slices having a highest storage utilization is identified, and one of the logical volumes having a highest number of physical regions in the identified storage slice is reconfigured to start storing the data at a second of the storage slices.

    Abstract translation: 方法，装置和计算机程序产品实现本发明的实施例，其包括布置存储切片的第一倍以存储第二多个逻辑卷，并且将各个偏移分配给每个逻辑卷。 然后将每个逻辑卷配置为开始在由所分配的各自的偏移量指示的存储片段的第一个存储片段上存储数据。 在操作中，可以将数据存储到由分配的偏移和内部体积偏移指示的切片。 在配置每个逻辑卷之后，识别具有最高存储利用率的存储片中的一个，并且重新配置所识别的存储片中具有最高数量的物理区域的逻辑卷之一，以开始在第二个 存储片。

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