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    Nonvolatile storage thresholding
    1.
    发明授权
    Nonvolatile storage thresholding 有权
    非易失性存储阈值

    公开(公告)号：US08140811B2

    公开(公告)日：2012-03-20

    申请号：US12489107

    申请日：2009-06-22

    申请人： Kevin J. Ash ,  Lokesh M. Gupta ,  Matthew J. Kalos ,  Alfred E. Sanchez ,  Kenneth W. Todd

    发明人： Kevin J. Ash ,  Lokesh M. Gupta ,  Matthew J. Kalos ,  Alfred E. Sanchez ,  Kenneth W. Todd

    IPC分类号： G06F12/08 ,  G06F13/00

    CPC分类号： G06F12/0804 ,  G06F12/0866 ,  G06F2212/214

    摘要： Embodiments for facilitating data transfer between a nonvolatile storage (NVS) write cache and a pool of target storage devices are provided. Each target storage device in the pool of target storage devices is determined as one of a hard disk drive (HDD) and a solid-state drive (SSD) device, and classified into one of a SSD rank group and a HDD rank group. If no data is received in the NVS write cache for a predetermined time to be written to a target storage device classified in the SSD rank group, a threshold of available space in the NVS write cache is set to allocate at least a majority of the available space to the HDD rank group. Upon receipt of a write request for the SSD rank group, the threshold of the available space is reduced to allocate a greater portion of the available space to the SSD rank group.

    摘要翻译： 提供了用于促进非易失性存储（NVS）写入高速缓存和目标存储设备池之间的数据传输的实施例。 目标存储设备池中的每个目标存储设备被确定为硬盘驱动器（HDD）和固态驱动器（SSD）设备之一，并且被分类为SSD等级组和HDD等级组之一。 如果在NVS写入高速缓存中没有数据被接收到预定时间被写入到SSD等级组中的目标存储设备上，则NVS写入高速缓存中的可用空间阈值被设置为分配至少大部分可用的 空间到HDD排名组。 在接收到SSD等级组的写入请求时，可用空间的阈值被减小以将更大部分的可用空间分配给SSD等级组。

    Storage in tiered environment for colder data segments
    4.
    发明授权
    Storage in tiered environment for colder data segments 有权
    在分层环境中存储较冷的数据段

    公开(公告)号：US08719529B2

    公开(公告)日：2014-05-06

    申请号：US13007465

    申请日：2011-01-14

    申请人： Michael T. Benhase ,  Lokesh M. Gupta ,  Carol S. Mellgren ,  Alfred E. Sanchez

    发明人： Michael T. Benhase ,  Lokesh M. Gupta ,  Carol S. Mellgren ,  Alfred E. Sanchez

    IPC分类号： G06F13/00

    CPC分类号： G06F3/0608 ,  G06F3/0611 ,  G06F3/0649 ,  G06F3/0685

    摘要： Exemplary system and computer program embodiments for storing data by a processor device in a computing environment are provided. In one embodiment, by way of example only, from a plurality of available data segments, a data segment having a storage activity lower than a predetermined threshold is identified as a colder data segment. A chunk of storage is located to which the colder data segment is assigned. The colder data segment is compressed. The colder data segment is migrated to the chunk of storage. A status of the chunk of storage is maintained in a compression data segment bitmap.

    摘要翻译： 提供了用于在计算环境中由处理器设备存储数据的示例性系统和计算机程序实施例。 在一个实施例中，仅作为示例，从多个可用数据段，具有低于预定阈值的存储活动的数据段被识别为较冷的数据段。 位于分配较冷的数据段的存储块。 较低的数据段被压缩。 较低的数据段将迁移到存储块。 在压缩数据段位图中保留存储块的状态。

    SYSTEM, METHOD, AND COMPUTER PROGRAM PRODUCT FOR DISASTER RECOVERY USING ASYNCHRONOUS MIRRORING
    7.
    发明申请
    SYSTEM, METHOD, AND COMPUTER PROGRAM PRODUCT FOR DISASTER RECOVERY USING ASYNCHRONOUS MIRRORING 审中-公开
    系统，方法和计算机程序产品用于使用异步回扫的灾难恢复

    公开(公告)号：US20120254124A1

    公开(公告)日：2012-10-04

    申请号：US13076024

    申请日：2011-03-30

    申请人： Lisa J. Gundy ,  Beth A. Peterson ,  Alfred E. Sanchez ,  David M. Shackelford ,  Warren K. Stanley ,  John G. Thompson

    发明人： Lisa J. Gundy ,  Beth A. Peterson ,  Alfred E. Sanchez ,  David M. Shackelford ,  Warren K. Stanley ,  John G. Thompson

    IPC分类号： G06F17/30

    CPC分类号： G06F11/2074 ,  G06F11/2064

    摘要： In one embodiment, a computer program product for handling a point-in-time copy (PITC) command includes a computer readable storage medium having computer readable program code embodied therewith. The computer readable program code is configured to: receive a PITC command at a local site, create a data representation that represents updates to make to the at least one target volume of the local target storage location, wherein the updates correspond to changes made to at least one source volume of the local source storage location since execution of an earlier PITC command, create a source data sidefile entry for the at least one source volume, create a target data sidefile entry for the at least one target volume, execute the PITC command at the local site, and create a PITC sidefile entry for the PITC command, the PITC sidefile entry including a timestamp that indicates when the PITC command was executed.

    摘要翻译： 在一个实施例中，一种用于处理时间点复制（PITC）命令的计算机程序产品包括具有实施的计算机可读程序代码的计算机可读存储介质。 计算机可读程序代码被配置为：在本地站点处接收PITC命令，创建表示对本地目标存储位置的至少一个目标卷进行更新的数据表示，其中更新对应于对 执行较早的PITC命令之后的本地源存储位置的至少一个源卷，为所述至少一个源卷创建源数据侧文件条目，为所述至少一个目标卷创建目标数据侧文件条目，执行PITC命令 在本地站点，并为PITC命令创建PITC sidefile条目，PITC sidefile条目包括指示何时执行PITC命令的时间戳。

    Synchronization of logical copy relationships
    9.
    发明授权
    Synchronization of logical copy relationships 失效
    逻辑复制关系的同步

    公开(公告)号：US08775753B2

    公开(公告)日：2014-07-08

    申请号：US12984489

    申请日：2011-01-04

    申请人： Lisa J. Gundy ,  Alfred E. Sanchez ,  David M. Shackelford ,  Warren K. Stanley

    发明人： Lisa J. Gundy ,  Alfred E. Sanchez ,  David M. Shackelford ,  Warren K. Stanley

    IPC分类号： G06F13/00

    CPC分类号： G06F11/2064 ,  G06F11/2074 ,  G06F11/2082

    摘要： An approach to synchronization of logical copy relationships on a local site with those on a remote site that is a mirror. A withdraw command is received on the local site for logical copy relationships between local source tracks and local target tracks. The withdraw command is executed and sent to a remote site buffer, from which it will be transferred to the remote site. Change indicators are set for the at least one local track in the affected logical copy relationships. If the withdraw command is lost from the remote site buffer, the remote site buffer will be rebuilt using the change indicators. By setting change indicators for local tracks in a withdrawn logical copy relationship (even if the data in local tracks hasn't changed), the remote counterparts to these tracks on the remote site will be rewritten, resulting in withdrawal of the logical copy relationship there even if the withdrawal command was never sent to the remote site.

    摘要翻译： 本地站点上的逻辑复制关系与远程站点上的镜像同步的方法。 在本地站点上收到撤销命令，用于本地源轨道和本地目标轨道之间的逻辑复制关系。 执行撤销命令并将其发送到远程站点缓冲区，并将其从远程站点缓存传输到远程站点。 对受影响的逻辑副本关系中的至少一个本地磁道设置更改指示符。 如果提取命令从远程站点缓冲区丢失，则将使用更改指示器重建远程站点缓冲区。 通过在取消的逻辑复制关系中设置本地磁道的更改指示（即使本地磁道中的数据未更改），远程站点上的这些磁道的远程对应方将被重写，从而导致逻辑副本关系撤回 即使撤回命令从未发送到远程站点。