Apparatus and method to initialize information disposed in an information storage and retrieval system
    1.
    发明授权
    Apparatus and method to initialize information disposed in an information storage and retrieval system 失效
    初始化设置在信息存储和检索系统中的信息的装置和方法

    公开(公告)号:US07120766B2

    公开(公告)日:2006-10-10

    申请号:US10743664

    申请日:2003-12-22

    IPC分类号: G06F12/12

    摘要: A method to initialize information disposed in an information storage and retrieval system comprising a data cache and one or more information storage media comprising a plurality of addresses. The method receives an initialization command, where that initialization command comprises a range of addresses and, optionally, an initialization pattern, where the plurality of addresses includes the range of addresses. The method forms and saves state information, where that state information includes the initialization pattern, and generates and saves a plurality of indicators, where that plurality of indicators includes an indicator for each track comprising the range of addresses. The method sets each of those indicators to a first value thereby indicating special handling, and provides an ending status signal, such that the receiving step, forming step, generating step, setting step, and providing step are performed substantially synchronously.

    摘要翻译: 一种初始化设置在信息存储和检索系统中的信息的方法,包括数据高速缓存和包括多个地址的一个或多个信息存储介质。 该方法接收初始化命令,其中该初始化命令包括地址范围和可选择的初始化模式,其中多个地址包括地址范围。 该方法形成并保存状态信息,其中该状态信息包括初始化模式,并且生成并保存多个指示符,其中多个指示符包括包括地址范围的每个轨道的指示符。 该方法将每个指示器设置为第一值,从而指示特殊处理,并提供结束状态信号,使得接收步骤,形成步骤,生成步骤,设置步骤和提供步骤基本上同步地进行。

    Storage application performance matching
    6.
    发明授权
    Storage application performance matching 有权
    存储应用性能匹配

    公开(公告)号:US08375180B2

    公开(公告)日:2013-02-12

    申请号:US12700964

    申请日:2010-02-05

    IPC分类号: G06F12/00

    摘要: Input/output (I/O) activity in the multiple tier storage system is monitored to collect statistical information. The statistical information is recurrently transformed into an exponential moving average (EMA) of the I/O activity having a predefined smoothing factor. Data portions in the multiple tier storage system are sorted into buckets of varying temperatures corresponding to the EMA. At least one data migration plan is recurrently generated for matching the sorted data portions to at least one of an available plurality of storage device classes. One data portion sorted into a higher temperature bucket is matched with a higher performance storage device class of the available plurality of storage device classes than another data portion sorted into a lower temperature bucket.

    摘要翻译: 监控多层存储系统中的输入/输出(I / O)活动以收集统计信息。 统计信息被循序变换成具有预定平滑因子的I / O活动的指数移动平均(EMA)。 将多层存储系统中的数据部分分类为对应于EMA的不同温度的桶。 循环地生成至少一个数据迁移计划,用于将排序的数据部分与可用的多个存储设备类中的至少一个进行匹配。 分类到较高温度桶中的一个数据部分与可分解为较低温度桶的另一数据部分的可用多个存储设备类别的更高性能的存储设备类相匹配。

    Management of write cache using stride objects
    8.
    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

    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。

    METHODS, SYSTEMS, AND PHYSICAL COMPUTER STORAGE MEDIA FOR PROCESSING A PLURALITY OF INPUT/OUTPUT REQUEST JOBS
    9.
    发明申请
    METHODS, SYSTEMS, AND PHYSICAL COMPUTER STORAGE MEDIA FOR PROCESSING A PLURALITY OF INPUT/OUTPUT REQUEST JOBS 有权
    方法,系统和物理计算机存储介质,用于处理输入/输出请求工作的大量

    公开(公告)号:US20130074087A1

    公开(公告)日:2013-03-21

    申请号:US13233162

    申请日:2011-09-15

    IPC分类号: G06F9/46

    CPC分类号: G06F9/4881

    摘要: Methods, systems, and physical computer-readable storage medium for processing a plurality of IO request jobs are provided. The method includes determining whether one or more request jobs are not meeting a QoS target, each job of the one or more request jobs having a corresponding priority, selecting a highest priority job from the one or more request jobs, if one or more request jobs are not meeting the QoS target, determining whether the highest priority job has a corresponding effective rate limit imposed thereon, if so, relaxing the corresponding effective rate limit, and if not, selecting one or more lower priority jobs from the one or more request jobs and tightening a corresponding effective limit on the one or more lower priority jobs from the one or more request jobs in accordance with a delay factor limit.

    摘要翻译: 提供了用于处理多个IO请求作业的方法,系统和物理计算机可读存储介质。 该方法包括确定一个或多个请求作业是否不满足QoS目标,一个或多个请求作业的每个作业具有相应的优先级,从一个或多个请求作业中选择最高优先级的作业,如果一个或多个请求作业 不满足QoS目标,确定最高优先级作业是否具有对其施加的对应的有效速率限制,如果是,放宽对应的有效速率限制,如果不是,则从一个或多个请求作业中选择一个或多个较低优先级的作业 以及根据延迟因子限制从所述一个或多个请求作业收紧对所述一个或多个较低优先级作业的对应的有效限制。