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    Management of write cache using stride objects
    2.
    发明授权
    Management of write cache using stride objects 有权
    使用stride对象管理写缓存

    公开(公告)号：US08332589B2

    公开(公告)日：2012-12-11

    申请号：US12894019

    申请日：2010-09-29

    申请人： Brent C. Beardsley ,  Michael T. Benhase ,  Lokesh M. Gupta ,  Joseph S. Hyde, II ,  Sonny E. Williams

    发明人： Brent C. Beardsley ,  Michael T. Benhase ,  Lokesh M. Gupta ,  Joseph S. Hyde, II ,  Sonny E. Williams

    IPC分类号： G06F12/00

    CPC分类号： G06F12/0804 ,  G06F12/0866

    摘要： Method, system, and computer program product embodiments for, in a computing storage environment for destaging data from nonvolatile storage (NVS) to a storage unit, identifying working data on a stride basis by a processor device are provided. A multi-update bit is established for each stride in a modified cache. The multi-update bit is adapted to indicate at least one track in a working set. A schedule of destage scans is configured based on a plurality of levels of urgency. A destage operation is performed based on at least one of a number of strides examined by the destage scans, whether the multi-update bit is set, and whether an emergency level of the plurality of levels of urgency is active.

    摘要翻译： 提供了一种用于在将数据从非易失性存储（NVS）降级到存储单元的计算存储环境中的方法，系统和计算机程序产品实施例，由处理器设备基于步长识别工作数据。 为修改的高速缓存中的每个步幅建立多更新位。 多更新位适于指示工作组中的至少一个轨道。 基于多个级别的紧急度配置了目的地扫描的时间表。 基于通过流水扫描检查的多个步骤中的至少一个，是否设置了多更新位，以及多个紧急级别的紧急级别是否活动来执行转移操作。

    Intelligent write caching for sequential tracks
    3.
    发明授权
    Intelligent write caching for sequential tracks 有权
    用于顺序轨道的智能写缓存

    公开(公告)号：US08443141B2

    公开(公告)日：2013-05-14

    申请号：US12894017

    申请日：2010-09-29

    申请人： Brent C. Beardsley ,  Michael T. Benhase ,  Lokesh M. Gupta ,  Joseph S. Hyde, II ,  Sonny E. Williams

    发明人： Brent C. Beardsley ,  Michael T. Benhase ,  Lokesh M. Gupta ,  Joseph S. Hyde, II ,  Sonny E. Williams

    IPC分类号： G06F12/00

    CPC分类号： G06F12/126 ,  G06F12/0804 ,  G06F12/0868

    摘要： Write caching for sequential tracks is performed by a processor device in a computing storage environment for destaging data from nonvolatile storage (NVS) to a storage unit. If a first track is determined to be sequential, and an earlier track is also determined to be sequential, a temporal bit associated with the earlier track is cleared to allow for destage of data of the earlier track. If a temporal bit for one of a plurality of additional tracks in one of a plurality of strides in a modified cache is determined to be not set, a stride associated with the one of the plurality of additional tracks is selected for a destage operation. If the NVS exceeds a predetermined storage threshold, a predetermined one of the plurality of strides is selected for the destage operation.

    摘要翻译： 用于顺序轨道的写缓存由用于将数据从非易失性存储（NVS）降级到存储单元的计算存储环境中的处理器设备执行。 如果确定第一轨道是顺序的，并且较早的轨道也被确定为顺序的，则与较早轨道相关联的时间位被清除以允许对先前轨道的数据进行排水。 如果确定修改的高速缓存中的多个步幅之一中的多个附加轨道之一的时间位未被设置，则选择与所述多个附加轨道中的一个相关联的步幅用于码头操作。 如果NVS超过预定的存储阈值，则选择多个步骤中的预定的一个步骤用于排水操作。

    Management of write cache using stride objects
    4.
    发明授权
    Management of write cache using stride objects 失效
    使用stride对象管理写缓存

    公开(公告)号：US08549220B2

    公开(公告)日：2013-10-01

    申请号：US13616029

    申请日：2012-09-14

    申请人： Brent C. Beardsley ,  Michael T. Benhase ,  Lokesh M. Gupta ,  Joseph S. Hyde, II ,  Sonny E. Williams

    发明人： Brent C. Beardsley ,  Michael T. Benhase ,  Lokesh M. Gupta ,  Joseph S. Hyde, II ,  Sonny E. Williams

    IPC分类号： G06F12/00

    CPC分类号： G06F12/0804 ,  G06F12/0866

    摘要： Method, system, and computer program product embodiments for, in a computing storage environment for destaging data from nonvolatile storage (NVS) to a storage unit, identifying working data on a stride basis by a processor device are provided. A multi-update bit is established for each of a plurality of strides in a modified cache, wherein the multi-update bit is adapted to indicate a corresponding stride is part of at least one track in a working set that refers to a group of frequently updated tracks. The plurality of strides are scanned based on a schedule to identify tracks for destaging. An operation to destage is performed on a selected track identified during the scanning, if the multi-update bit of a selected stride on the selected track is set to indicate the selected track is part of the working set and if the NVS is about 90% full or greater.

    摘要翻译： 提供了一种用于在将数据从非易失性存储（NVS）降级到存储单元的计算存储环境中的方法，系统和计算机程序产品实施例，由处理器设备基于步长识别工作数据。 针对经修改的高速缓存中的多个步幅中的每一个建立多更新位，其中，所述多更新位适于指示相应步幅是工作集中的至少一个轨道的一部分，所述至少一个轨迹是指频繁地组 更新的曲目。 基于用于识别用于降落的轨迹的时间表扫描多个步幅。 如果在所选择的轨道上选择的步幅的多更新位被设置为指示所选择的轨迹是工作组的一部分，并且如果NVS为大约90％ 满或更大