Techniques for dynamic data storage configuration in accordance with an allocation policy
    1.
    发明授权
    Techniques for dynamic data storage configuration in accordance with an allocation policy 有权
    根据分配策略进行动态数据存储配置的技术

    公开(公告)号:US09003157B1

    公开(公告)日:2015-04-07

    申请号:US12803570

    申请日:2010-06-30

    IPC分类号: G06F12/08 G06F3/06

    摘要: Described are techniques for partitioning storage of a data storage system. A plurality of storage groups is selected. Each of the plurality of storage groups includes one or more devices and is associated with an allocation policy including a first threshold specifying one of a minimum or a maximum amount of storage of a first of a plurality of storage tiers. Workload data for the plurality of storage groups is analyzed. Storage of a plurality of storage tiers is partitioned for use by the plurality of storage groups in accordance with criteria. The criteria includes workloads of the plurality of storage groups and the allocation policy associated with each of the plurality of storage groups.

    摘要翻译: 描述了用于分区数据存储系统的存储的技术。 选择多个存储组。 多个存储组中的每一个包括一个或多个设备,并且与分配策略相关联,分配策略包括指定多个存储层中的第一个的最小或最大存储量之一的第一阈值。 分析多个存储组的工作量数据。 多个存储层的存储被划分为多个存储组根据标准使用。 标准包括多个存储组的工作负荷和与多个存储组中的每一个相关联的分配策略。

    Techniques for automated data compression and decompression
    2.
    发明授权
    Techniques for automated data compression and decompression 有权
    自动数据压缩和解压缩技术

    公开(公告)号:US08862837B1

    公开(公告)日:2014-10-14

    申请号:US13429669

    申请日:2012-03-26

    IPC分类号: G06F12/00 G06F13/00 G06F13/28

    CPC分类号: G06F12/0868

    摘要: Described are techniques for automated compression and/or decompression of data. Idle counters are received for data portions which indicate a level of inactivity with respect to idle criteria for the data portions. Compression criteria is received specifying conditions for determining whether a data portion is a candidate for data compression. The compression criteria includes a time compression threshold indicating a minimum amount of time that a data portion has been deemed idle with respect to said idle criteria. A data portion that qualifies as a candidate for data compression has an associated idle counter indicating an inactivity level that is greater than the time compression threshold. Processing determines whether a first data portion is a candidate for data compression in accordance with the compression criteria. If the first data portion is determined as a candidate for data compression, compression processing is performed for the first data portion.

    摘要翻译: 描述了用于数据的自动压缩和/或解压缩的技术。 对于数据部分接收空闲计数器,这些数据部分指示关于数据部分的空闲标准的不活动级别。 接收压缩标准,指定用于确定数据部分是否是用于数据压缩的候选者的条件。 压缩标准包括指示数据部分相对于所述空闲标准被视为空闲的最小时间量的时间压缩阈值。 限定为数据压缩的候选者的数据部分具有指示大于时间压缩阈值的不活动级别的相关联的空闲计数器。 处理根据压缩标准确定第一数据部分是否是用于数据压缩的候选。 如果第一数据部分被确定为用于数据压缩的候选者,则对第一数据部分进行压缩处理。

    Techniques for statistics collection in connection with data storage performance
    3.
    发明授权
    Techniques for statistics collection in connection with data storage performance 有权
    与数据存储性能相关的统计收集技术

    公开(公告)号:US08583838B1

    公开(公告)日:2013-11-12

    申请号:US12924396

    申请日:2010-09-27

    IPC分类号: G06F3/00

    摘要: Described are techniques for tracking activity for one or more devices. Each of the one or more devices is partitioned into one or more extents. Each of the one or more extents includes a plurality of sub extents. Each of the sub extents includes a plurality of chunks. For each of said one or more extents of each of said one or more devices, extent activity level information is determined including one or more metrics indicating an activity level for said each extent; and For each of said one or more extents of each of said one or more devices, an activity bitmap is determined. The activity bitmap includes an entry for each sub extent included in said each extent, said entry indicating an activity level for said each sub extent.

    摘要翻译: 描述了用于跟踪一个或多个设备的活动的技术。 一个或多个设备中的每一个被分割成一个或多个范围。 一个或多个区段中的每一个包括多个子范围。 每个子范围包括多个块。 对于所述一个或多个设备中的每一个的所述一个或多个区段中的每一个,确定范围活动级别信息,包括指示所述每个区段的活动水平的一个或多个度量; 并且对于所述一个或多个设备中的每一个的所述一个或多个区段中的每一个,确定活动位图。 活动位图包括包含在所述每个范围中的每个子范围的条目,所述条目表示所述每个子范围的活动级别。

    Caching techniques
    4.
    发明授权
    Caching techniques 有权
    缓存技术

    公开(公告)号:US08713261B1

    公开(公告)日:2014-04-29

    申请号:US13065016

    申请日:2011-03-11

    IPC分类号: G06F12/00

    摘要: Described are techniques for caching. At a first point in time, a first set of data portions currently stored in a first cache of a first data storage system is determined. Each data portion of the first set is located on a first device of the first data storage system. Sent to a second data storage system is first information including information identifying a storage location on the first device for each data portion of the first set. The second data storage system includes a second device that is maintained as a mirror of the first device. The storage location for each data portion of the first set is used to identify a second storage location of the second device corresponding to the storage location. The first information is used to populate a second cache of the second data storage system.

    摘要翻译: 描述的是缓存技术。 在第一时间点,确定当前存储在第一数据存储系统的第一高速缓存中的第一组数据部分。 第一组的每个数据部分位于第一数据存储系统的第一设备上。 发送到第二数据存储系统是第一信息,包括识别第一设备的每个数据部分的第一设备上的存储位置的信息。 第二数据存储系统包括被维护为第一设备的反射镜的第二设备。 用于第一组的每个数据部分的存储位置用于识别对应于存储位置的第二设备的第二存储位置。 第一信息用于填充第二数据存储系统的第二缓存。

    Techniques for storing data to device mirrors
    6.
    发明授权
    Techniques for storing data to device mirrors 有权
    将数据存储到设备镜像的技术

    公开(公告)号:US08380956B1

    公开(公告)日:2013-02-19

    申请号:US13065014

    申请日:2011-03-11

    IPC分类号: G06F12/00 G06F13/00

    CPC分类号: G06F11/2087 G06F11/2069

    摘要: Described are techniques for storing first data to a logical data in accordance with a static policy to service reads using data stored in a first storage area. The logical device has its data stored on a first physical device that is mirrored on a second physical device. Each of the first and second physical devices include a first storage area and a second storage area. The first storage areas provide better performance than the second storage areas. The first data is stored at a first location in one of the first storage areas of one of the physical devices and at a second location in one of the second storage areas at the other of the first and the second physical devices. An operation to read the first data is serviced by accessing the first data stored in the first area of the one physical device.

    摘要翻译: 描述了根据静态策略将第一数据存储到逻辑数据的技术,以使用存储在第一存储区域中的数据来进行服务读取。 逻辑设备将其数据存储在第二物理设备上的镜像上。 第一和第二物理设备中的每一个包括第一存储区域和第二存储区域。 第一个存储区域提供比第二个存储区域更好的性能。 第一数据被存储在物理设备之一的第一存储区域之一的第一位置处,并且存储在第一和第二物理设备中的另一个的第二存储区域之一的第二位置处。 通过访问存储在一个物理设备的第一区域中的第一数据来服务读取第一数据的操作。

    Techniques for automated evaluation and movement of data between storage tiers
    7.
    发明授权
    Techniques for automated evaluation and movement of data between storage tiers 有权
    存储层之间自动评估和数据移动的技术

    公开(公告)号:US09047017B1

    公开(公告)日:2015-06-02

    申请号:US13331010

    申请日:2011-12-20

    摘要: Described are techniques for configuring data storage. Criteria identifying limits is received for a plurality of storage tiers for one or more logical devices. The storage tiers include a first storage tier and one or more other storage tiers where the first storage tier is higher performing than the other storage tiers. First processing is performed to determine a first set of data portions of the logical devices to be stored on physical devices of the first storage tier subject to limits included in said criteria. First processing includes determining scores for data portions of the logical devices. Each score is calculated using one or more metrics including a first metric weighted based on an expected I/O size. The data portions are ranked in accordance with the scores. The first set of data portions stored in the first storage tier is selected based on the score ranking.

    摘要翻译: 描述了用于配置数据存储的技术。 对于一个或多个逻辑设备的多个存储层接收标准识别限制。 存储层包括第一存储层和一个或多个其他存储层,其中第一存储层比其他存储层更高的性能。 执行第一处理以确定要存储在第一存储层的物理设备上的逻辑设备的第一组数据部分,其受到包括在所述标准中的限制。 第一处理包括确定逻辑设备的数据部分的分数。 使用包括基于预期I / O大小加权的第一度量的一个或多个度量来计算每个分数。 数据部分根据分数排列。 基于评分等级来选择存储在第一存储层中的第一组数据部分。

    System and method for warming cache
    8.
    发明授权
    System and method for warming cache 有权
    缓存缓存系统和方法

    公开(公告)号:US09026741B1

    公开(公告)日:2015-05-05

    申请号:US13539431

    申请日:2012-06-30

    IPC分类号: G06F12/00 G06F11/20

    摘要: A method, computer program product, and computing system for receiving an indication of a cold cache event within a storage system. The storage system includes a multi-tiered data array including at least a faster data tier and a slower data tier. A data list that identifies at least a portion of the data included within the faster data tier of the multi-tiered data array is obtained from the multi-tiered data array. At least a portion of the data identified within the data list is requested from the multi-tiered data array, thus defining the requested data. The requested data is received from the multi-tiered data array.

    摘要翻译: 一种用于接收存储系统内的冷缓存事件的指示的方法,计算机程序产品和计算系统。 存储系统包括多层数据阵列,其包括至少更快的数据层和较慢的数据层。 从多层数据阵列获得识别包含在多层数据阵列的更快数据层内的数据的至少一部分的数据列表。 从多层数据阵列请求数据列表中识别的数据的至少一部分,从而定义所请求的数据。 从多层数据阵列接收所请求的数据。

    Dynamic storage allocation with virtually provisioned devices
    9.
    发明授权
    Dynamic storage allocation with virtually provisioned devices 有权
    动态存储分配与虚拟设备

    公开(公告)号:US08972694B1

    公开(公告)日:2015-03-03

    申请号:US13429622

    申请日:2012-03-26

    IPC分类号: G06F12/00 G06F13/00 G06F13/28

    摘要: A write operation writes first data to a target logical address range included in a first logical address range of a virtually provisioned device. It is determined that physical storage is not allocated for the target logical address range. First processing is performed to allocate a first portion of physical storage having a first corresponding logical address subrange that includes the target logical address range. The first portion is allocated from a physical device included in a first storage tier. The first processing includes selecting the first storage tier from multiple storage tiers in accordance with selection criteria including metrics characterizing an expected workload or level of activity for the first corresponding logical address subrange of the virtually provisioned device. Mapping information is updated to indicate that the first corresponding logical address subrange of the virtually provisioned device maps to the first portion of physical storage.

    摘要翻译: 写入操作将第一数据写入包含在虚拟设备的第一逻辑地址范围内的目标逻辑地址范围。 确定没有为目标逻辑地址范围分配物理存储。 执行第一处理以分配具有包括目标逻辑地址范围的第一对应逻辑地址子范围的物理存储器的第一部分。 第一部分从包括在第一存储层中的物理设备分配。 第一处理包括根据选择标准来选择来自多个存储层的第一存储层,所述选择标准包括表征虚拟提供设备的第一对应逻辑地址子范围的预期工作负载或活动级别的度量。 更新映射信息以指示虚拟供应设备的第一对应逻辑地址子范围映射到物理存储的第一部分。

    Remote data facility over an IP network
    10.
    发明授权
    Remote data facility over an IP network 有权
    远程数据设备通过IP网络

    公开(公告)号:US07430589B2

    公开(公告)日:2008-09-30

    申请号:US11224408

    申请日:2005-09-12

    IPC分类号: G06F15/16

    摘要: A data storage system capable of performing remote data services (e.g., data mirroring) over an IP network using native connections to the IP network is described. The data storage system employs an architecture that manages the remote data services and the native connections to the IP network in a way that isolates the remote data services application software from the TCP/IP and lower level network processing.

    摘要翻译: 描述了能够使用对IP网络的本地连接通过IP网络执行远程数据服务(例如,数据镜像)的数据存储系统。 数据存储系统采用以远程数据服务应用软件与TCP / IP和较低级网络处理隔离的方式管理远程数据服务和到IP网络的本地连接的架构。