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    Method and apparatus for enabling access to tiered shared storage using dynamic tier partitioning
    1.
    发明授权
    Method and apparatus for enabling access to tiered shared storage using dynamic tier partitioning 有权
    用于使用动态层划分访问分层共享存储的方法和装置

    公开(公告)号：US09335948B1

    公开(公告)日：2016-05-10

    申请号：US13431071

    申请日：2012-03-27

    申请人： Ahmet Kirac ,  Adnan Sahin ,  Marik Marshak ,  Amnon Naamad

    发明人： Ahmet Kirac ,  Adnan Sahin ,  Marik Marshak ,  Amnon Naamad

    IPC分类号： G06F3/06

    CPC分类号： G06F3/0649 ,  G06F3/061 ,  G06F3/0631 ,  G06F3/0665 ,  G06F3/0685

    摘要： To facilitate both minimal allocations and adaptive allocations, two sets of storage group policies are defined—one policy setting minimal allocation values for storage group access to storage resources and one policy setting maximal allocation values for storage group access to storage. In addition, a set of priority weights is specified that is used to balance access to storage tiers across storage groups. Upon existence of contention for storage resources, minimum allocation values for storage groups are determined based on the priority weights for the storage groups, resulting in threshold values being set to enable at least partial access to storage resources for all storage groups without requiring priority weighting of the activity density distributions of the competing storage groups. Allocations other than the minimal allocations are provided based on relative activity density distribution of storage extents between groups.

    摘要翻译： 为了方便最小分配和自适应分配，定义了两组存储组策略 - 一种策略设置用于存储组访问存储资源的最小分配值，以及一个策略设置用于存储组访问存储的最大分配值。 此外，还指定了一组优先级权重，用于平衡对存储组间存储层的访问。 在存储资源的争用存在时，基于存储组的优先级权重来确定存储组的最小分配值，导致阈值被设置为使得能够至少部分地访问所有存储组的存储资源，而不需要优先权重 竞争存储组的活动密度分布。 基于分组之间的存储范围的相对活动密度分布提供除最小分配之外的分配。

    Performing data storage optimizations across multiple data storage systems
    2.
    发明授权
    Performing data storage optimizations across multiple data storage systems 有权
    在多个数据存储系统之间执行数据存储优化

    公开(公告)号：US08935493B1

    公开(公告)日：2015-01-13

    申请号：US13466775

    申请日：2012-05-08

    申请人： Sean C. Dolan ,  Amnon Naamad ,  Marik Marshak ,  Alexandr Veprinsky ,  Adnan Sahin ,  Hui Wang ,  Xiaomei Liu ,  Dan Aharoni ,  Ahmet Kirac ,  Owen Martin

    发明人： Sean C. Dolan ,  Amnon Naamad ,  Marik Marshak ,  Alexandr Veprinsky ,  Adnan Sahin ,  Hui Wang ,  Xiaomei Liu ,  Dan Aharoni ,  Ahmet Kirac ,  Owen Martin

    IPC分类号： G06F12/02 ,  G06F3/06

    CPC分类号： G06F3/0649 ,  G06F3/0605 ,  G06F3/0608 ,  G06F3/0611 ,  G06F3/0631 ,  G06F3/064 ,  G06F3/0653 ,  G06F3/0665 ,  G06F3/067 ,  G06F3/068

    摘要： Described are techniques for performing data storage optimizations. A data storage optimizer on a first data storage system connected to a set of other data storage systems receives performance classification information. The first data storage system includes a first set of storage devices of a first performance classification. The set of other data storage systems includes a second set of storage devices of a second performance classification different from the first performance classification. A write operation is received from the host to write first data to a target address of a virtually provisioned device. It is determined that physical storage is not currently allocated for the target address of the virtually provisioned device. A first portion of physical storage is allocated for storing the first data. The first portion of physical storage is included in a storage device of the second set having the second performance classification.

    摘要翻译： 描述了用于执行数据存储优化的技术。 连接到一组其他数据存储系统的第一数据存储系统上的数据存储优化器接收性能分类信息。 第一数据存储系统包括第一性能分类的第一组存储装置。 该组其他数据存储系统包括与第一性能分类不同的第二性能分类的第二组存储设备。 从主机接收写入操作，以将第一数据写入虚拟设备的目标地址。 确定物理存储当前未被分配给虚拟配置设备的目标地址。 分配物理存储的第一部分用于存储第一数据。 物理存储的第一部分包括在具有第二性能分类的第二组的存储设备中。

    Techniques for automated evaluation and movement of data between storage tiers for thin devices
    3.
    发明授权
    Techniques for automated evaluation and movement of data between storage tiers for thin devices 有权
    用于在薄型设备的存储层之间自动评估和移动数据的技术

    公开(公告)号：US09052830B1

    公开(公告)日：2015-06-09

    申请号：US13135306

    申请日：2011-06-30

    申请人： Marik Marshak ,  Adnan Sahin ,  Xiaomei Liu ,  Hui Wang ,  Sean C. Dolan ,  Amnon Naamad

    发明人： Marik Marshak ,  Adnan Sahin ,  Xiaomei Liu ,  Hui Wang ,  Sean C. Dolan ,  Amnon Naamad

    IPC分类号： G06F12/00 ,  G06F13/00 ,  G06F13/28 ,  G06F3/06

    CPC分类号： G06F3/061 ,  G06F3/0608 ,  G06F3/0611 ,  G06F3/064 ,  G06F3/0647 ,  G06F3/0665 ,  G06F3/067 ,  G06F3/0685 ,  G06F3/0689

    摘要： Described are techniques for evaluating data movement alternative. A set of criteria including capacity and performance limits is received. First processing is performed to evaluate a plurality of alternatives for use in data movement with respect to a set of logical devices having data stored on a set of physical storage devices. Each of the plurality of alternatives includes a different set of data movement criteria comprising capacity limits and a different set of performance limits. The set of physical storage devices includes at least a first physical device of one of a plurality of storage tiers and a second physical device of another one of the plurality of storage tier. One of the sets of performance limits is selected in accordance with the first processing.

    摘要翻译： 描述了评估数据移动替代方法的技术。 收到一套标准，包括容量和性能限制。 执行第一处理以针对具有存储在一组物理存储设备上的数据的一组逻辑设备来评估用于数据移动的多个替代方案。 多个替代方案中的每一个包括不同的数据移动标准集合，其包括容量限制和不同的性能限制集合。 所述一组物理存储设备至少包括多个存储层中的一个的第一物理设备和所述多个存储层中的另一个存储层的第二物理设备。 根据第一处理选择性能极限集合中的一个。

    Techniques for statistics collection in connection with data storage performance
    4.
    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

    申请人： Marik Marshak ,  Owen Martin ,  Alex Veprinsky ,  Amnon Naamad ,  Sean C. Dolan ,  Adnan Sahin

    发明人： Marik Marshak ,  Owen Martin ,  Alex Veprinsky ,  Amnon Naamad ,  Sean C. Dolan ,  Adnan Sahin

    IPC分类号： G06F3/00

    CPC分类号： G06F3/0689 ,  G06F3/061 ,  G06F3/0619 ,  G06F3/0647 ,  G06F3/0649 ,  G06F3/0685

    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。

    Techniques for automated discovery of storage devices and their performance characteristics
    5.
    发明授权
    Techniques for automated discovery of storage devices and their performance characteristics 有权
    自动发现存储设备及其性能特征的技术

    公开(公告)号：US08868797B1

    公开(公告)日：2014-10-21

    申请号：US13435462

    申请日：2012-03-30

    申请人： Ahmet Kirac ,  Adnan Sahin ,  Amnon Naamad

    发明人： Ahmet Kirac ,  Adnan Sahin ,  Amnon Naamad

    IPC分类号： G06F3/00

    CPC分类号： G06F3/0631 ,  G06F3/061 ,  G06F3/0685

    摘要： Described are techniques for discovering physical device dependencies. A set of baseline response times for logical devices of a data storage system are received. A first of the logical devices is selected and a remaining set of logical devices includes each of the logical devices other than the first logical device. Data operations are issued to the first logical device at a first rate while also issuing data operations to the remaining logical devices. A set of observed response times for the remaining logical devices is received. For each remaining logical device, it is determined whether the logical device has a corresponding observed response time that is significantly more the logical device's baseline response time. A first logical device set is determined having physical device dependencies that includes the first logical device set and each remaining logical device having an observed response time significantly greater than it's baseline response time.

    摘要翻译： 描述了用于发现物理设备依赖性的技术。 接收数据存储系统的逻辑设备的一组基准响应时间。 选择逻辑设备中的第一个，并且剩余的一组逻辑设备包括除第一逻辑设备之外的每个逻辑设备。 以第一速率向第一逻辑设备发出数据操作，同时向剩余的逻辑设备发出数据操作。 接收一组观察到的其余逻辑设备的响应时间。 对于每个剩余的逻辑设备，确定逻辑设备是否具有相应的观察到的响应时间，其显着多于逻辑设备的基准响应时间。 确定具有物理设备依赖性的第一逻辑设备集合，其包括第一逻辑设备集合，并且每个剩余的逻辑设备具有明显大于其基准响应时间的观察到的响应时间。

    Location of data among storage tiers
    7.
    发明授权
    Location of data among storage tiers 有权
    存储层之间的数据位置

    公开(公告)号：US09323655B1

    公开(公告)日：2016-04-26

    申请号：US13135265

    申请日：2011-06-30

    申请人： Adnan Sahin ,  Alexandr Veprinsky ,  Marik Marshak ,  Hui Wang ,  Xiaomei Liu ,  Owen Martin ,  Sean C. Dolan

    发明人： Adnan Sahin ,  Alexandr Veprinsky ,  Marik Marshak ,  Hui Wang ,  Xiaomei Liu ,  Owen Martin ,  Sean C. Dolan

    IPC分类号： G06F12/00 ,  G06F13/00 ,  G06F13/28 ,  G06F12/02 ,  G06F3/06

    CPC分类号： G06F12/023 ,  G06F3/061 ,  G06F3/0617 ,  G06F3/0649 ,  G06F3/0665 ,  G06F3/0683 ,  G06F3/0685

    摘要： Managing data in a storage system having a plurality of classes of storage includes determining an amount of data to be provided on at least one of the classes of storage according to a policy, dynamically setting a threshold according to the amount of data to be provided on the at least one of the classes or an expected performance based on the threshold, and placing data on particular classes of storage based on the threshold. Dynamically setting a threshold may include sorting data portions according to at least one score thereof and may include determining a particular score corresponding to the amount of data to be provided. The data portions may be provided in a histogram having a horizontal scale corresponding to a score value and a vertical scale corresponding to a number of data portions having a particular value.

    摘要翻译： 在具有多个存储类别的存储系统中管理数据包括根据策略确定要在至少一个存储类别中提供的数据量，根据要提供的数据量动态地设置阈值 所述类别中的所述至少一个或基于所述阈值的期望性能，以及基于所述阈值将数据放置在特定类别的存储上。 动态地设置阈值可以包括根据其至少一个分数排序数据部分，并且可以包括确定与要提供的数据量相对应的特定分数。 数据部分可以被提供在具有对应于得分值的水平标尺的直方图和对应于具有特定值的数据部分的数量的垂直标度。

    Techniques for modeling disk performance
    8.
    发明授权
    Techniques for modeling disk performance 有权
    磁盘性能建模技巧

    公开(公告)号：US08868798B1

    公开(公告)日：2014-10-21

    申请号：US12924361

    申请日：2010-09-24

    申请人： Marik Marshak ,  Adnan Sahin ,  Hui Wang ,  Xiaomei Liu ,  Sachin S. More

    发明人： Marik Marshak ,  Adnan Sahin ,  Hui Wang ,  Xiaomei Liu ,  Sachin S. More

    IPC分类号： G06F3/00

    CPC分类号： G06F3/061 ,  G06F3/0649 ,  G06F3/0665 ,  G06F3/0685 ,  G06F3/0689

    摘要： Described are techniques for determining whether to move data between devices. A first cost metric is determined for a first device and a second device. At least one portion of data is selected for movement from one of the first device and the second device to another of the first device and the second device. A second cost metric is determined for the first device and the second device based on moving said at least one portion of data between said first device and said second device. It is determined using the first cost metric and the second cost metric whether to move the at least one portion of data.

    摘要翻译： 描述了用于确定是否在设备之间移动数据的技术。 确定第一设备和第二设备的第一成本度量。 选择数据的至少一部分用于从第一设备和第二设备之一移动到第一设备和第二设备中的另一个。 基于在所述第一设备和所述第二设备之间移动所述至少一部分数据，为所述第一设备和所述第二设备确定第二成本度量。 使用第一成本度量和第二成本度量确定是否移动数据的至少一部分。