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    HARD DISK DRIVE HAVING REGIONS CORRESPONDING TO DIFFERENT SPEEDS AT WHICH STORAGE SURFACE ROTATES
    4.
    发明申请
    HARD DISK DRIVE HAVING REGIONS CORRESPONDING TO DIFFERENT SPEEDS AT WHICH STORAGE SURFACE ROTATES 有权
    硬盘驱动器具有相对于存储表面旋转的不同速度的区域

    公开(公告)号：US20120014015A1

    公开(公告)日：2012-01-19

    申请号：US13259202

    申请日：2009-10-30

    Applicant: Eric A. Anderson ,  Arif A. Merchant

    Inventor： Eric A. Anderson ,  Arif A. Merchant

    IPC: G11B15/46

    CPC classification number: G11B19/26 ,  G11B5/012 ,  G11B20/1258 ,  G11B2020/1242 ,  G11B2220/2516

    Abstract: A hard disk drive includes a storage surface, a motor, a read/write had, and a number of regions into which the storage surface is divisible. Data is writable to and data is readable from the storage surface. The motor is to rotate the storage surface at a variable speed. The read/write head is to write data to and read data from the storage surface while the storage surface is rotated by the motor. Each region corresponds to a different speed at which the storage surface is rotated for the read/write head to write data to and read data from the region.

    Abstract translation: 硬盘驱动器包括存储表面，电动机，已读取/写入以及存储表面可分割成多个区域。 数据是可写的，数据可从存储表面读取。 电机以可变速度旋转存储表面。 读/写头是在存储表面由电动机旋转的同时将数据写入存储表面并从存储表面读取数据。 每个区域对应于存储表面旋转以使读/写头向数据写入数据和从该区域读取数据的不同速度。

    TREND DETERMINATION AND IDENTIFICATION
    5.
    发明申请
    TREND DETERMINATION AND IDENTIFICATION 审中-公开
    趋势确定和识别

    公开(公告)号：US20110231582A1

    公开(公告)日：2011-09-22

    申请号：US13123595

    申请日：2008-10-13

    Applicant: Mustafa Uysal ,  Virginia Smith ,  Arif A. Merchant

    Inventor： Mustafa Uysal ,  Virginia Smith ,  Arif A. Merchant

    IPC: G06F3/00

    CPC classification number: G06F11/008 ,  G06F11/3409 ,  G06F11/3452 ,  G06F2201/81 ,  G06F2201/87 ,  G06F2201/88 ,  G06F2201/885

    Abstract: A system comprises a processor and an alert module coupled to the processor. The processor the processor monitors performance data; determines a subset of the performance data, the subset correlated with a measure of underperformance; determines a trend of the subset, the trend correlated with the measure; and identifies an occurrence of the trend. The alert module outputs an alert based on the identification.

    Abstract translation: 系统包括处理器和耦合到处理器的警报模块。 处理器处理器监控性能数据; 确定性能数据的子集，该子集与表现不佳的度量相关; 确定子集的趋势，趋势与度量相关; 并确定趋势的发生。 警报模块基于识别输出警报。

    Method and apparatus for predicting multi-part performability
    7.
    发明授权
    Method and apparatus for predicting multi-part performability 失效
    用于预测多部分可执行性的方法和装置

    公开(公告)号：US06934673B2

    公开(公告)日：2005-08-23

    申请号：US09865999

    申请日：2001-05-25

    Applicant: Guillermo Alvarez ,  Ralph Becker-Szendy ,  Arif A. Merchant ,  Mustafa Uysal ,  John Wilkes

    Inventor： Guillermo Alvarez ,  Ralph Becker-Szendy ,  Arif A. Merchant ,  Mustafa Uysal ,  John Wilkes

    IPC: G06F7/60 ,  G06F9/45 ,  G06F11/00 ,  G06F11/34 ,  G06F13/10 ,  G06F13/12 ,  G06F17/10

    CPC classification number: G06F11/008 ,  G06F11/3452

    Abstract: A method of and apparatus for determining whether a multi-component target system meets a given multi-part performability requirement is provided. A description of the target system, failure probabilities for components of the target system and a multi-part performability requirement for the target system are obtained. The multi-part performability requirement indicates desired performance levels and corresponding fractions of time. One or more failure-scenarios are successively computed that represent one or more states of the target system having zero or more components failed and a corresponding probability of occurrence of the one or more of the states of the target system. Performance of the target system is modeled under the failure scenarios using a performance predictor module for generating a multi-part performability function. The multi-part performability function is compared with said multi-part performability requirement to determine whether the target system meets the multi-part performability requirement.

    Abstract translation: 提供了一种用于确定多分量目标系统是否满足给定的多部分可执行性要求的方法和装置。 获得目标系统的描述，目标系统组件的故障概率和目标系统的多部分可执行性要求。 多部分可执行性要求表示期望的性能水平和相应的时间分数。 连续计算一个或多个故障场景，其表示具有零个或更多个组件失败的目标系统的一个或多个状态以及目标系统的一个或多个状态的对应发生概率。 目标系统的性能在故障场景下使用用于生成多部分可执行性功能的性能预测器模块进行建模。 将多部分可执行性功能与所述多部分可执行性要求进行比较，以确定目标系统是否满足多部分可执行性要求。

    Methods and apparatus for implementing quality-of-service guarantees in data storage systems
    8.
    发明授权
    Methods and apparatus for implementing quality-of-service guarantees in data storage systems 有权
    在数据存储系统中实现服务质量保证的方法和装置

    公开(公告)号：US6119174A

    公开(公告)日：2000-09-12

    申请号：US172114

    申请日：1998-10-13

    Applicant: Elizabeth L. Borowsky ,  Richard A. Golding ,  Arif A. Merchant ,  Mirjana Spasojevic ,  John Wilkes

    Inventor： Elizabeth L. Borowsky ,  Richard A. Golding ,  Arif A. Merchant ,  Mirjana Spasojevic ,  John Wilkes

    IPC: G06F11/34 ,  G06F13/10 ,  G06F11/30 ,  G06F17/30 ,  G06F17/60

    CPC classification number: G06F11/3452 ,  G06F11/3414 ,  G06F11/3419 ,  Y10S707/99942

    Abstract: The value of a p-quantile of a workload distribution is computed to determine whether a data storage system satisfies a quality-of-service guarantee desired by a client. The quality-of-service guarantee may be a predetermined percentage of a workload being serviced by a device within a predetermined response time. A p-quantile value is set to be equal of the predetermined percentage of the quality-of-service guarantee, and a bound is set to be equal to the predetermined response time. A distribution for the workload arriving at the device during an interval of time equal to the bound is then estimated. It is then determined whether a p-quantile of the workload distribution is less than the bound. In cases where the p-quantile of the workload distribution is computed directly, then the p-quantile of the workload distribution is directly compared to the bound. In cases where the p-quantile of the workload distribution is not computed directly, then the p-quantile of the workload distribution is estimated, with the estimated value the compared to the bound.

    Abstract translation: 计算工作负载分布的p分位数的值，以确定数据存储系统是否满足客户端所期望的服务质量保证。 服务质量保证可以是在预定响应时间内由设备服务的工作负荷的预定百分比。 将p分位数设置为等于服务质量保证的预定百分比，并将边界设置为等于预定响应时间。 然后估计在等于边界的时间间隔内到达设备的工作量的分布。 然后确定工作负载分布的p分位数是否小于边界。 在工作量分布的p分位数直接计算的情况下，工作负载分布的p分位数直接与边界进行比较。 在不直接计算工作量分布的p分位数的情况下，估计工作量分布的p分位数，其估计值与绑定相比较。

    Differentiated storage QoS
    9.
    发明授权
    Differentiated storage QoS 有权
    差异化存储QoS

    公开(公告)号：US09104482B2

    公开(公告)日：2015-08-11

    申请号：US12636526

    申请日：2009-12-11

    Applicant: Arif A. Merchant ,  Mustafa Uysal

    Inventor： Arif A. Merchant ,  Mustafa Uysal

    IPC: G06F3/00 ,  G06F15/173 ,  G06F11/00 ,  G06F9/50

    CPC classification number: G06F9/5011 ,  G06F11/008 ,  G06F2209/501

    Abstract: A system includes disk storage to provide differentiated storage QoS for a plurality of IO classes. Each IO class has a plurality of applications to it. A QoS controller collects IO statistics for each application and each class. The QoS controller adaptively determines an IO class assignment for each application based at least in part on the collected IO statistics.

    Abstract translation: 系统包括用于为多个IO类提供差分存储QoS的磁盘存储器。 每个IO类都有多个应用程序。 QoS控制器收集每个应用程序和每个类的IO统计信息。 QoS控制器至少部分地基于所收集的IO统计量自适应地确定每个应用的IO类分配。

    System and methods for allocating shared storage resources
    10.
    发明授权
    System and methods for allocating shared storage resources 有权
    分配共享存储资源的系统和方法

    公开(公告)号：US08918566B2

    公开(公告)日：2014-12-23

    申请号：US13130836

    申请日：2009-01-23

    Applicant: Pradeep Padala ,  Arif A. Merchant ,  Mustafa Uysal

    Inventor： Pradeep Padala ,  Arif A. Merchant ,  Mustafa Uysal

    IPC: G06F3/00 ,  G06F5/00 ,  G06F13/12 ,  G06F13/38 ,  G06F3/06

    CPC classification number: G06F3/0653 ,  G06F3/061 ,  G06F3/0631 ,  G06F3/0659 ,  G06F3/067

    Abstract: A system and method for allocating resources on a shared storage system are disclosed. The system 10 can include a shared storage device 12 and a plurality of port schedulers 14 associated with a plurality of I/O ports 16 that are in communication with the shared storage device 12. Each port scheduler 14 is configured to enforce a concurrency level and a proportional share of storage resources of the shared storage device 12 for each application 18 utilizing the associated port. The system 10 can also include a resource controller 17 that is configured to both monitor performance characteristics of the applications 18 utilizing at least one of the I/O ports 16, and to adjust the concurrency level and the proportional share of storage resources parameters of the port schedulers 14 for at least a portion of the applications 18 in order to vary allocation of the resources of the shared storage device 12.

    Abstract translation: 公开了一种用于在共享存储系统上分配资源的系统和方法。 系统10可以包括共享存储设备12和与与共享存储设备12通信的多个I / O端口16相关联的多个端口调度器14.每个端口调度器14被配置为强制并发级别， 使用相关端口的每个应用18的共享存储设备12的存储资源的比例份额。 系统10还可以包括资源控制器17，其被配置为既利用I / O端口16中的至少一个来监视应用18的性能特征，并且调整并发级别和存储资源参数的比例份额 用于至少一部分应用18的端口调度器14，以便改变共享存储设备12的资源分配。

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