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    Systems and methods for tracking working-set estimates with a limited resource budget
    1.
    发明授权
    Systems and methods for tracking working-set estimates with a limited resource budget 有权
    以有限的资源预算跟踪工作集估计的系统和方法

    公开(公告)号：US09298616B2

    公开(公告)日：2016-03-29

    申请号：US14315881

    申请日：2014-06-26

    Applicant: NetApp, Inc.

    Inventor： Gokul Soundararajan ,  Lakshmi Narayanan Bairavasundaram ,  Vipul Mathur ,  Kaladhar Voruganti

    IPC: G06F12/00 ,  G06F12/08

    CPC classification number: G06F12/0802 ,  G06F12/0888 ,  G06F2212/6042

    Abstract: Embodiments of the systems and techniques described here can leverage several insights into the nature of workload access patterns and the working-set behavior to reduce the memory overheads. As a result, various embodiments make it feasible to maintain running estimates of a workload's cacheability in current storage systems with limited resources. For example, some embodiments provide for a method comprising estimating cacheability of a workload based on a first working-set size estimate generated from the workload over a first monitoring interval. Then, based on the cacheability of the workload, a workload cache size can be determined. A cache then can be dynamically allocated (e.g., change, possibly frequently, the cache allocation for the workload when the current allocation and the desired workload cache size differ), within a storage system for example, in accordance with the workload cache size.

    Abstract translation: 这里描述的系统和技术的实施例可以利用对工作负载访问模式和工作集行为的性质的几个见解，以减少内存开销。 因此，各种实施例使得可以在有限的资源的当前存储系统中维持工作负载的高速缓存的运行估计。 例如，一些实施例提供了一种方法，其包括基于在第一监视间隔上从工作负载产生的第一工作集大小估计来估计工作负载的可缓存性。 然后，基于工作负载的可缓存性，可以确定工作负载高速缓存大小。 然后可以根据工作负载高速缓存大小来动态地分配高速缓存（例如，当当前分配和期望的工作负载高速缓存大小不同时，可以频繁地改变工作负载的高速缓存分配），例如在存储系统内。

    DYNAMIC STORAGE MANAGEMENT USING VIRTUAL STORAGE APPLIANCES
    2.
    发明申请
    DYNAMIC STORAGE MANAGEMENT USING VIRTUAL STORAGE APPLIANCES 审中-公开
    使用虚拟存储设备的动态存储管理

    公开(公告)号：US20150370486A1

    公开(公告)日：2015-12-24

    申请号：US14585084

    申请日：2014-12-29

    Applicant: NetApp, Inc.

    Inventor： Lakshmi Narayanan Bairavasundaram ,  Garth Goodson ,  Vipul Mathur ,  Shankar Pasupathy ,  Gokul Soundararajan ,  Kiran Srinivasan ,  Kaladhar Vorungati

    IPC: G06F3/06 ,  H04L29/08 ,  G06F9/455

    CPC classification number: G06F3/067 ,  G06F3/0611 ,  G06F3/0653 ,  G06F9/45558 ,  G06F12/109 ,  G06F2009/45583 ,  G06F2009/45595 ,  H04L67/1097

    Abstract: The techniques introduced here provide for efficient management of storage resources in a modern, dynamic data center through the use of virtual storage appliances. Virtual storage appliances perform storage operations and execute in or as a virtual machine on a hypervisor. A storage management system monitors a storage system to determine whether the storage system is satisfying a service level objective for an application. The storage management system then manages (e.g., instantiates, shuts down, or reconfigures) a virtual storage appliance on a physical server. The virtual storage appliance uses resources of the physical server to meet the storage related needs of the application that the storage system cannot provide. This automatic and dynamic management of virtual storage appliances by the storage management system allows storage systems to quickly react to changing storage needs of applications without requiring expensive excess storage capacity.

    Abstract translation: 这里介绍的技术通过使用虚拟存储设备来提供现代动态数据中心中的存储资源的有效管理。 虚拟存储设备执行存储操作，并在虚拟机管理程序中或作为虚拟机执行。 存储管理系统监视存储系统以确定存储系统是否满足应用的服务级目标。 存储管理系统然后管理（例如，实例化，关闭或重新配置）物理服务器上的虚拟存储设备。 虚拟存储设备使用物理服务器的资源来满足存储系统无法提供的应用程序的存储相关需求。 存储管理系统对虚拟存储设备的自动和动态管理允许存储系统快速响应应用中不断变化的存储需求，而不需要昂贵的超额存储容量。

    Methods and systems for determining a cache size for a storage system
    3.
    发明授权
    Methods and systems for determining a cache size for a storage system 有权
    用于确定存储系统的高速缓存大小的方法和系统

    公开(公告)号：US09069680B2

    公开(公告)日：2015-06-30

    申请号：US13963875

    申请日：2013-08-09

    Applicant: NetApp, Inc.

    Inventor： Gokul Soundararajan ,  Lakshmi Narayanan Bairavasundaram ,  Vipul Mathur

    IPC: G06F12/08

    CPC classification number: G06F12/0873 ,  G06F11/34 ,  G06F11/3442 ,  G06F12/0811 ,  G06F12/0871 ,  G06F12/0897 ,  G06F2201/88 ,  G06F2201/885 ,  G06F2212/1048 ,  G06F2212/601

    Abstract: Technology for operating a cache sizing system is disclosed. In various embodiments, the technology monitors input/output (IO) accesses to a storage system within a monitor period; tracks an access map for storage addresses within the storage system during the monitor period; and counts a particular access condition of the IO accesses based on the access map during the monitor period. When sizing a cache of the storage system that enables the storage system to provide a specified level of service, the counting is for computing a working set size (WSS) estimate of the storage system.

    Abstract translation: 公开了用于操作缓存大小调整系统的技术。 在各种实施例中，技术监视在监视周期内对存储系统的输入/输出（IO）访问; 在监视期间跟踪存储系统内存储地址的访问地图; 并在监视期间根据访问映射计算IO访问的特定访问条件。 当确定使存储系统能够提供指定级别的服务的存储系统的高速缓存时，计数用于计算存储系统的工作集大小（WSS）估计。

    GRAPH TRANSOFRMATIONS TO CORRECT VIOLATIONS OF SERVICE LEVEL OBJECTIONS IN A DATA CENTER
    5.
    发明申请
    GRAPH TRANSOFRMATIONS TO CORRECT VIOLATIONS OF SERVICE LEVEL OBJECTIONS IN A DATA CENTER 有权
    改变数据中心服务级别对象的图像转移

    公开(公告)号：US20140143282A1

    公开(公告)日：2014-05-22

    申请号：US13936851

    申请日：2013-07-08

    Applicant: NetApp, Inc.

    Inventor： Gokul Soundararajan ,  Lakshmi Narayanan Bairavasundaram ,  Vipul Mathur ,  Rukma Ameet Talwadker ,  Kaladhar Voruganti

    IPC: G06F17/30

    CPC classification number: G06F17/30312 ,  G06F8/10 ,  G06F9/00 ,  G06F17/30

    Abstract: Graph transformations are used by a data management system to correct violations of service-level objectives (SLOs) in a data center. In one aspect, a process is provided to manage a data center by receiving an indication of a violation of a service-level objective associated with the data center from a server in the data center. A graph representation and a transformations data container are retrieved by the data management system from data storage accessible to the data management system. The transformations data container includes one or more transformations. The transformation is processed to create a mutated graph from a data center representation from the graph representation. An option for managing the data center is determined as a result of evaluating the mutated graphs.

    Abstract translation: 数据管理系统使用图形转换来纠正数据中心中服务级目标（SLO）的违规。 在一个方面，提供了一种通过从数据中心中的服务器接收与数据中心相关联的服务级别目标的违规的指示来管理数据中心的过程。 数据管理系统从数据管理系统可访问的数据存储中检索图表表示和转换数据容器。 变换数据容器包括一个或多个变换。 处理变换以从图表表示从数据中心表示创建突变图。 通过评估突变图来确定用于管理数据中心的选项。

    System and method for an efficient cache warm-up
    6.
    发明授权
    System and method for an efficient cache warm-up 有权
    高效缓存预热的系统和方法

    公开(公告)号：US09317435B1

    公开(公告)日：2016-04-19

    申请号：US13718452

    申请日：2012-12-18

    Applicant: NetApp Inc.

    Inventor： Lakshmi Narayanan Bairavasundaram ,  Gokul Soundararajan ,  Mark Walter Storer ,  Yiying Zhang

    IPC: G06F12/00 ,  G06F12/08

    CPC classification number: G06F12/0862

    Abstract: Described herein is a system and method for an efficient cache warm-up. The system and method may copy data blocks from a primary storage device to a cache memory device. The system and method may identify a subset of data blocks stored on the primary storage device as candidate data blocks for copying to the cache memory device during a cache warm-up period. A cost effectiveness for copying the candidate data blocks to the cache memory device may be determined. In some embodiments, the cost effectiveness may be calculated based on one or more latency values associated with the primary storage device and the cache memory device. The candidate data blocks may be copied to the cache memory device based on the cost effectiveness.

    Abstract translation: 这里描述了一种用于高效缓存预热的系统和方法。 系统和方法可以将数据块从主存储设备复制到高速缓冲存储器设备。 该系统和方法可以将存储在主存储设备上的数据块的子集识别为用于在高速缓存预热期间复制到高速缓冲存储器设备的候选数据块。 可以确定将候选数据块复制到高速缓冲存储器件的成本效益。 在一些实施例中，可以基于与主存储设备和高速缓冲存储器设备相关联的一个或多个等待时间值来计算成本效益。 可以基于成本效益将候选数据块复制到高速缓冲存储器设备。

    METHODS AND SYSTEMS FOR DETERMINING A CACHE SIZE FOR A STORAGE SYSTEM
    7.
    发明申请
    METHODS AND SYSTEMS FOR DETERMINING A CACHE SIZE FOR A STORAGE SYSTEM 有权
    用于确定存储系统的高速缓存大小的方法和系统

    公开(公告)号：US20150046653A1

    公开(公告)日：2015-02-12

    申请号：US13963875

    申请日：2013-08-09

    Applicant: NetApp, Inc.

    Inventor： Gokul Soundararajan ,  Lakshmi Narayanan Bairavasundaram ,  Vipul Mathur

    IPC: G06F12/08

    CPC classification number: G06F12/0873 ,  G06F11/34 ,  G06F11/3442 ,  G06F12/0811 ,  G06F12/0871 ,  G06F12/0897 ,  G06F2201/88 ,  G06F2201/885 ,  G06F2212/1048 ,  G06F2212/601

    Abstract: Technology for operating a cache sizing system is disclosed. In various embodiments, the technology monitors input/output (IO) accesses to a storage system within a monitor period; tracks an access map for storage addresses within the storage system during the monitor period; and counts a particular access condition of the IO accesses based on the access map during the monitor period. When sizing a cache of the storage system that enables the storage system to provide a specified level of service, the counting is for computing a working set size (WSS) estimate of the storage system.

    Abstract translation: 公开了用于操作缓存大小调整系统的技术。 在各种实施例中，技术监视在监视周期内对存储系统的输入/输出（IO）访问; 在监视期间跟踪存储系统内存储地址的访问地图; 并且在监视期间根据访问映射计算IO访问的特定访问条件。 当确定使存储系统能够提供指定级别的服务的存储系统的高速缓存时，计数用于计算存储系统的工作集大小（WSS）估计。

    Graph transformations to correct violations of service level objections in a data center
    8.
    发明授权
    Graph transformations to correct violations of service level objections in a data center 有权
    图形转换，以纠正在数据中心违反服务级别异议

    公开(公告)号：US08892607B2

    公开(公告)日：2014-11-18

    申请号：US13936851

    申请日：2013-07-08

    Applicant: NetApp, Inc.

    Inventor： Gokul Soundararajan ,  Lakshmi Narayanan Bairavasundaram ,  Vipul Mathur ,  Rukma Ameet Talwadker ,  Kaladhar Voruganti

    IPC: G06F17/30 ,  G06F9/00

    CPC classification number: G06F17/30312 ,  G06F8/10 ,  G06F9/00 ,  G06F17/30

    Abstract: Graph transformations are used by a data management system to correct violations of service-level objectives (SLOs) in a data center. In one aspect, a process is provided to manage a data center by receiving an indication of a violation of a service-level objective associated with the data center from a server in the data center. A graph representation and a transformations data container are retrieved by the data management system from data storage accessible to the data management system. The transformations data container includes one or more transformations. The transformation is processed to create a mutated graph from a data center representation from the graph representation. An option for managing the data center is determined as a result of evaluating the mutated graphs.

    Abstract translation: 数据管理系统使用图形转换来纠正数据中心中服务级目标（SLO）的违规。 在一个方面，提供了一种通过从数据中心中的服务器接收与数据中心相关联的服务级别目标的违规的指示来管理数据中心的过程。 数据管理系统从数据管理系统可访问的数据存储中检索图表表示和转换数据容器。 变换数据容器包括一个或多个变换。 处理变换以从图表表示从数据中心表示创建突变图。 通过评估突变图来确定用于管理数据中心的选项。

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