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    POPULATING A FIRST STRIDE OF TRACKS FROM A FIRST CACHE TO WRITE TO A SECOND STRIDE IN A SECOND CACHE
    4.
    发明申请
    POPULATING A FIRST STRIDE OF TRACKS FROM A FIRST CACHE TO WRITE TO A SECOND STRIDE IN A SECOND CACHE 有权
    将第一个缓存的第一个路径从第一个缓存中写入第二个缓冲区

    公开(公告)号：US20130185478A1

    公开(公告)日：2013-07-18

    申请号：US13464668

    申请日：2012-05-04

    申请人： Kevin J. Ash ,  Michael T. Benhase ,  Lokesh M. Gupta ,  Matthew J. Kalos ,  Karl A. Nielsen

    发明人： Kevin J. Ash ,  Michael T. Benhase ,  Lokesh M. Gupta ,  Matthew J. Kalos ,  Karl A. Nielsen

    IPC分类号： G06F12/08

    CPC分类号： G06F12/0868 ,  G06F12/0804 ,  G06F12/0897 ,  G06F12/128 ,  G06F2212/262 ,  G06F2212/312 ,  G06F2212/462

    摘要： Provided are a computer program product, system, and method for managing data in a cache system comprising a first cache, a second cache, and a storage system. A determination is made of tracks stored in the storage system to demote from the first cache. A first stride is formed including the determined tracks to demote. A determination is made of a second stride in the second cache in which to include the tracks in the first stride. The tracks from the first stride are added to the second stride in the second cache. A determination is made of tracks in strides in the second cache to demote from the second cache. The determined tracks to demote from the second cache are demoted.

    摘要翻译： 提供了一种用于管理包括第一高速缓存，第二高速缓存和存储系统的高速缓存系统中的数据的计算机程序产品，系统和方法。 确定存储在存储系统中的轨道以从第一高速缓存降级。 形成第一步，包括确定的轨道降级。 确定在第二高速缓存中的第二步，其中包括在第一步中的轨道。 来自第一步的轨道被添加到第二缓存中的第二步。 确定第二高速缓存中的步幅中的轨迹以从第二高速缓存降级。 确定的从第二个缓存降级的轨迹将被降级。

    DEMOTING PARTIAL TRACKS FROM A FIRST CACHE TO A SECOND CACHE
    6.
    发明申请
    DEMOTING PARTIAL TRACKS FROM A FIRST CACHE TO A SECOND CACHE 有权

    公开(公告)号：US20130185504A1

    公开(公告)日：2013-07-18

    申请号：US13352239

    申请日：2012-01-17

    申请人： Kevin J. Ash ,  Michael T. Benhase ,  Lokesh M. Gupta

    发明人： Kevin J. Ash ,  Michael T. Benhase ,  Lokesh M. Gupta

    IPC分类号： G06F12/08

    CPC分类号： G06F12/0866 ,  G06F12/128

    摘要： A determination is made of a track to demote from the first cache to the second cache, wherein the track in the first cache corresponds to a track in the storage system and is comprised of a plurality of sectors. In response to determining that the second cache includes a the stale version of the track being demoted from the first cache, a determination is made as to whether the stale version of the track includes track sectors not included in the track being demoted from the first cache. The sectors from the track demoted from the first cache are combined with sectors from the stale version of the track not included in the track being demoted from the first cache into a new version of the track. The new version of the track is written to the second cache.

    CACHING SOURCE BLOCKS OF DATA FOR TARGET BLOCKS OF DATA
    7.
    发明申请
    CACHING SOURCE BLOCKS OF DATA FOR TARGET BLOCKS OF DATA 有权
    缓存数据块数据块

    公开(公告)号：US20130185501A1

    公开(公告)日：2013-07-18

    申请号：US13352201

    申请日：2012-01-17

    申请人： Kevin J. Ash ,  Michael T. Benhase ,  Lokesh M. Gupta ,  Matthew J. Kalos

    发明人： Kevin J. Ash ,  Michael T. Benhase ,  Lokesh M. Gupta ,  Matthew J. Kalos

    IPC分类号： G06F12/08

    CPC分类号： G06F12/0802 ,  G06F12/0868

    摘要： Provided are a computer program product, system, and method for processing a read operation for a target block of data. A read operation for the target block of data in target storage is received, wherein the target block of data is in an instant virtual copy relationship with a source block of data in source storage. It is determined that the target block of data in the target storage is not consistent with the source block of data in the source storage. The source block of data is retrieved. The data in the source block of data in the cache is synthesized to make the data appear to be retrieved from the target storage. The target block of data is marked as read from the source storage. In response to the read operation completing, the target block of data that was read from the source storage is demoted.

    摘要翻译： 提供了一种用于处理目标数据块的读取操作的计算机程序产品，系统和方法。 接收目标存储器中目标数据块的读取操作，其中目标数据块与源存储器中的源数据块处于即时虚拟复制关系。 确定目标存储器中的目标数据块与源存储器中的数据源块不一致。 检索源数据块。 高速缓存中源数据块中的数据被合成，使数据看起来从目标存储器检索出来。 目标数据块被标记为从源存储器读取。 响应于读取操作完成，从源存储器读取的目标数据块被降级。

    Demoting partial tracks from a first cache to a second cache
    9.
    发明授权
    Demoting partial tracks from a first cache to a second cache 有权

    公开(公告)号：US09021201B2

    公开(公告)日：2015-04-28

    申请号：US13352239

    申请日：2012-01-17

    申请人： Kevin J. Ash ,  Michael T. Benhase ,  Lokesh M. Gupta

    发明人： Kevin J. Ash ,  Michael T. Benhase ,  Lokesh M. Gupta

    IPC分类号： G06F12/00 ,  G06F13/00 ,  G06F13/28 ,  G06F12/08 ,  G06F12/12

    CPC分类号： G06F12/0866 ,  G06F12/128

    摘要： A determination is made of a track to demote from the first cache to the second cache, wherein the track in the first cache corresponds to a track in the storage system and is comprised of a plurality of sectors. In response to determining that the second cache includes a the stale version of the track being demoted from the first cache, a determination is made as to whether the stale version of the track includes track sectors not included in the track being demoted from the first cache. The sectors from the track demoted from the first cache are combined with sectors from the stale version of the track not included in the track being demoted from the first cache into a new version of the track. The new version of the track is written to the second cache.

    Caching source blocks of data for target blocks of data
    10.
    发明授权
    Caching source blocks of data for target blocks of data 有权
    缓存目标数据块的数据源块

    公开(公告)号：US08825973B2

    公开(公告)日：2014-09-02

    申请号：US13352201

    申请日：2012-01-17

    申请人： Kevin J. Ash ,  Michael T. Benhase ,  Lokesh M. Gupta ,  Matthew J. Kalos

    发明人： Kevin J. Ash ,  Michael T. Benhase ,  Lokesh M. Gupta ,  Matthew J. Kalos

    IPC分类号： G06F12/08

    CPC分类号： G06F12/0802 ,  G06F12/0868

    摘要： Provided are a computer program product, system, and method for processing a read operation for a target block of data. A read operation for the target block of data in target storage is received, wherein the target block of data is in an instant virtual copy relationship with a source block of data in source storage. It is determined that the target block of data in the target storage is not consistent with the source block of data in the source storage. The source block of data is retrieved. The data in the source block of data in the cache is synthesized to make the data appear to be retrieved from the target storage. The target block of data is marked as read from the source storage. In response to the read operation completing, the target block of data that was read from the source storage is demoted.

    摘要翻译： 提供了一种用于处理目标数据块的读取操作的计算机程序产品，系统和方法。 接收目标存储器中目标数据块的读取操作，其中目标数据块与源存储器中的源数据块处于即时虚拟复制关系。 确定目标存储器中的目标数据块与源存储器中的数据源块不一致。 检索源数据块。 高速缓存中源数据块中的数据被合成，使数据看起来从目标存储器检索出来。 目标数据块被标记为从源存储器读取。 响应于读取操作完成，从源存储器读取的目标数据块被降级。