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    Apparatus, system and method for detection of mismatches in continuous remote copy using metadata
    22.
    发明授权
    Apparatus, system and method for detection of mismatches in continuous remote copy using metadata 失效
    用于使用元数据检测连续远程复制中的不匹配的装置，系统和方法

    公开(公告)号：US07647463B2

    公开(公告)日：2010-01-12

    申请号：US11560718

    申请日：2006-11-16

    申请人： Thomas Charles Jarvis ,  Beth Ann Peterson ,  Warren Keith Stanley ,  Kenneth Wayne Todd

    发明人： Thomas Charles Jarvis ,  Beth Ann Peterson ,  Warren Keith Stanley ,  Kenneth Wayne Todd

    IPC分类号： G06F12/00

    CPC分类号： G06F11/2069

    摘要： An apparatus, system, and method are disclosed for detecting mismatches in a mirror volume. A receive module receives a start indicator from a primary storage system. The start indicator includes a starting location of a first block to be modified on a track in a secondary storage system. The first block corresponds to an identically located first block of a modified record in the primary storage system. The tracks the first blocks on the primary and secondary storage systems each comprise irregular count key data (“CKD”) tracks. A compare module compares the first block location indicated by the start indicator with block locations listed in track metadata. The track metadata describes user records on the irregular CKD tracks of the secondary storage system. An alert module generates an alert in response to the first block not aligning with a beginning block of a record on the secondary storage system.

    摘要翻译： 公开了一种用于检测反射镜体积中的不匹配的装置，系统和方法。 接收模块从主存储系统接收启动指示符。 起始指示符包括要在次要存储系统中的轨道上要修改的第一块的起始位置。 第一块对应于主存储系统中修改记录的相同位置的第一块。 轨道上主要和次要存储系统上的第一个块各自包括不规则的计数密钥数据（“CKD”）轨道。 比较模块将起始指示符指示的第一个块位置与轨道元数据中列出的块位置进行比较。 轨道元数据描述了辅助存储系统的不规则CKD轨道上的用户记录。 响应于不与辅助存储系统上的记录的开始块对准的第一块，警报模块生成警报。

    ADJUSTING PARAMETERS USED TO PREFETCH DATA FROM STORAGE INTO CACHE
    24.
    发明申请
    ADJUSTING PARAMETERS USED TO PREFETCH DATA FROM STORAGE INTO CACHE 有权
    调整参数用于将数据从存储转入高速缓存

    公开(公告)号：US20090055595A1

    公开(公告)日：2009-02-26

    申请号：US11843615

    申请日：2007-08-22

    申请人： Binny Sher Gill ,  Luis Angel Daniel Bathen ,  Steven Robert Lowe ,  Thomas Charles Jarvis

    发明人： Binny Sher Gill ,  Luis Angel Daniel Bathen ,  Steven Robert Lowe ,  Thomas Charles Jarvis

    IPC分类号： G06F12/02 ,  G06F12/12

    CPC分类号： G06F12/0862 ,  G06F2212/1016 ,  G06F2212/6026

    摘要： Provided are a method, system, and article of manufacture for adjusting parameters used to prefetch data from storage into cache. Data units are added from a storage to a cache, wherein requested data from the storage is returned from the cache. A degree of prefetch is processed indicating a number of data units to prefetch into the cache. A trigger distance is processed indicating a prefetched trigger data unit in the cache. The number of data units indicated by the degree of prefetch is prefetched in response to processing the trigger data unit. The degree of prefetch and the trigger distance are adjusted based on a rate at which data units are accessed from the cache.

    摘要翻译： 提供了一种用于调整用于将数据从存储器预取到高速缓存中的参数的方法，系统和制品。 从存储器将数据单元添加到高速缓存，其中来自存储器的所请求的数据从高速缓存返回。 处理一定程度的预取，指示预取到高速缓存中的数据单元的数量。 处理指示缓存中的预取触发数据单元的触发距离。 响应于处理触发数据单元预取由预取程度指示的数据单元的数量。 基于从缓存访问数据单元的速率来调整预取程度和触发距离。

    MANAGING WRITE REQUESTS TO DATA SETS IN A PRIMARY VOLUME SUBJECT TO BEING COPIED TO A SECONDARY VOLUME
    25.
    发明申请
    MANAGING WRITE REQUESTS TO DATA SETS IN A PRIMARY VOLUME SUBJECT TO BEING COPIED TO A SECONDARY VOLUME 失效
    管理对主要数量的数据集的写入请求，以复制为次要卷

    公开(公告)号：US20090043979A1

    公开(公告)日：2009-02-12

    申请号：US11834626

    申请日：2007-08-06

    申请人： Thomas Charles Jarvis

    发明人： Thomas Charles Jarvis

    IPC分类号： G06F12/16

    CPC分类号： G06F11/2064 ,  G06F11/2074 ,  G06F11/2082 ,  G06F2201/82

    摘要： Provided are a method, system, and article of manufacture for managing write requests to data sets in a primary volume subject to being copied to a secondary volume. Information indicating data sets to copy from a primary storage to a secondary storage is generated. A write request is received to write data to a target data set indicated in the information to copy from the primary storage to the secondary storage. A determination is made as to whether the write request is part of a sequential write access. The target data set and sequential data sets following the target data set are copied from the primary storage to the secondary storage. The write request to write the data to the primary storage is executed in response to receiving acknowledgment that the target data set was copied to the secondary storage.

    摘要翻译： 提供了一种用于管理对要被复制到次要卷的主卷中的数据集的写入请求的方法，系统和制品。 生成指示从主存储器复制到辅助存储器的数据集的信息。 接收到写入请求以将数据写入要从主存储器复制到辅助存储器的信息中指示的目标数据集。 确定写请求是否是顺序写访问的一部分。 目标数据集之后的目标数据集和顺序数据集从主存储复制到辅助存储。 响应于接收到将目标数据集复制到辅助存储器的确认，执行将数据写入主存储器的写入请求。

    Method, system, and program for establishing and maintaining a point-in-time copy
    27.
    发明授权
    Method, system, and program for establishing and maintaining a point-in-time copy 有权
    用于建立和维护时间点副本的方法，系统和程序

    公开(公告)号：US07055009B2

    公开(公告)日：2006-05-30

    申请号：US10393859

    申请日：2003-03-21

    申请人： Michael E. Factor ,  Thomas Charles Jarvis

    发明人： Michael E. Factor ,  Thomas Charles Jarvis

    IPC分类号： G06F12/00

    CPC分类号： G06F3/065 ,  G06F3/0613 ,  G06F3/067

    摘要： Provided are a method, system, and program for establishing a point-in-time copy. Input/Output (I/O) requests to tracks identified as source tracks and corresponding target tracks in a point-in-time copy relationship are suspended until the point-in-time copy relationship is established. At least one data structure providing information on the source tracks and corresponding target tracks in the point-in-time copy relationship is generated, wherein the point-in-time copy relationship is established before data at the source tracks is copied to the target tracks and before source tracks in cache at the point-in-time are destaged to storage.

    摘要翻译： 提供了一种用于建立时间点副本的方法，系统和程序。 对于在时间点复制关系中标识为源轨道和对应目标轨道的轨道的输入/输出（I / O）请求将被暂停，直到建立时间点复制关系为止。 生成在时间点复制关系中提供关于源轨道和对应目标轨道的信息的至少一个数据结构，其中在源轨道上的数据被复制到目标轨迹之前建立时间点复制关系 并且在时间点的高速缓存中的源轨迹在存储之前。

    Method, system, and article of manufacture for increasing processor utilization
    28.
    发明授权
    Method, system, and article of manufacture for increasing processor utilization 有权
    提高处理器利用率的方法，系统和制造

    公开(公告)号：US06948009B2

    公开(公告)日：2005-09-20

    申请号：US10163219

    申请日：2002-06-04

    申请人： Thomas Charles Jarvis ,  Steven Robert Lowe ,  Sam Clark Werner ,  William Dennis Williams

    发明人： Thomas Charles Jarvis ,  Steven Robert Lowe ,  Sam Clark Werner ,  William Dennis Williams

    IPC分类号： G06F3/00 ,  G06F9/50 ,  G06F12/08 ,  G06F13/00

    CPC分类号： G06F9/5027 ,  G06F12/0804 ,  G06F12/0866 ,  G06F2209/5018

    摘要： Provided are a method, system, and program for increasing processor utilization. A list of work is divided for processing among a plurality of processes, wherein a process is allocated a part of the list of work to process, and the processes execute in parallel. If a process completes the list of work allocated to the process then the process is made available on an available process queue. Before a process performs any work, the process reads the available process queue and determines if any process is available to share the work. If so, the work is split up between the examining process and the available process. In one implementation, the work involves scanning a cache and if necessary destage data.

    摘要翻译： 提供了用于增加处理器利用率的方法，系统和程序。 工作列表被分配用于在多个处理之间进行处理，其中，处理被分配待处理的工作列表的一部分，并且处理并行执行。 如果进程完成分配给进程的工作列表，则可以在可用的进程队列中使用进程。 在进程执行任何工作之前，该进程读取可用的进程队列，并确定是否有任何进程可用于共享工作。 如果是这样，工作就在审查过程和可用过程之间分开。 在一个实现中，该工作涉及扫描缓存，并且如果必要的话，数据传送。