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    Maintaining a target number of storage devices for variable I/O response times in a storage system
    11.
    发明授权
    Maintaining a target number of storage devices for variable I/O response times in a storage system 有权

    公开(公告)号：US10228865B1

    公开(公告)日：2019-03-12

    申请号：US15967408

    申请日：2018-04-30

    Applicant: PURE STORAGE, INC.

    Inventor： John Colgrove ,  John Hayes ,  Bo Hong ,  Feng Wang ,  Ethan Miller ,  Craig Harmer

    IPC: G06F3/06

    Abstract: A system and method for effectively scheduling read and write operations among a plurality of solid-state storage devices. A computer system comprises client computers and data storage arrays coupled to one another via a network. A data storage array utilizes solid-state drives and Flash memory cells for data storage. A storage controller within a data storage array comprises an I/O scheduler. The characteristics of corresponding storage devices are used to schedule I/O requests to the storage devices in order to maintain relatively consistent response times at predicted times. Should a device exhibit an unscheduled behavior which may be indicative of the device being in an unknown state, the scheduler may schedule one or more reactive operations on the device configured to cause the device to enter a known state.

    Scheduling of reactive I/O operations in a storage environment
    12.
    发明授权
    Scheduling of reactive I/O operations in a storage environment 有权
    在存储环境中调度反应性I / O操作

    公开(公告)号：US09588699B1

    公开(公告)日：2017-03-07

    申请号：US15004500

    申请日：2016-01-22

    Applicant: Pure Storage, Inc.

    Inventor： John Colgrove ,  John Hayes ,  Bo Hong ,  Feng Wang ,  Ethan Miller ,  Craig Harmer

    IPC: G06F3/06 ,  G06F11/07

    CPC classification number: G06F3/0611 ,  G06F3/061 ,  G06F3/0613 ,  G06F3/0617 ,  G06F3/0634 ,  G06F3/0659 ,  G06F3/0665 ,  G06F3/0688 ,  G06F3/0689 ,  G06F11/0751 ,  G06F11/076 ,  G06F11/1076

    Abstract: A system and method for effectively scheduling read and write operations among a plurality of solid-state storage devices. A computer system comprises client computers and data storage arrays coupled to one another via a network. A data storage array utilizes solid-state drives and Flash memory cells for data storage. A storage controller within a data storage array comprises an I/O scheduler. The characteristics of corresponding storage devices are used to schedule I/O requests to the storage devices in order to maintain relatively consistent response times at predicted times. Should a device exhibit an unscheduled behavior which may be indicative of the device being in an unknown state, the scheduler may schedule one or more reactive operations on the device configured to cause the device to enter a known state.

    Abstract translation: 一种用于在多个固态存储设备之间有效地调度读取和写入操作的系统和方法。 计算机系统包括经由网络彼此耦合的客户端计算机和数据存储阵列。 数据存储阵列利用固态驱动器和闪存单元进行数据存储。 数据存储阵列中的存储控制器包括I / O调度器。 相应的存储设备的特性用于将I / O请求调度到存储设备，以便在预测时间内保持相对一致的响应时间。 如果设备呈现可能指示设备处于未知状态的非计划行为，则调度器可以对被配置为使设备进入已知状态的设备上的一个或多个无效操作进行调度。

    Intra-device data protection in a raid array
    14.
    发明授权
    Intra-device data protection in a raid array 有权
    RAID阵列中的设备内数据保护

    公开(公告)号：US08832373B2

    公开(公告)日：2014-09-09

    申请号：US13914248

    申请日：2013-06-10

    Applicant: PURE Storage, Inc.

    Inventor： John Colgrove ,  John Hayes ,  Bo Hong ,  Ethan Miller

    IPC: G06F12/16 ,  G06F3/06 ,  G06F11/10 ,  G06F11/30

    CPC classification number: G06F3/0619 ,  G06F3/0605 ,  G06F3/0614 ,  G06F3/0632 ,  G06F3/0653 ,  G06F3/0655 ,  G06F3/0688 ,  G06F3/0689 ,  G06F11/1076 ,  G06F11/3034 ,  G06F11/3055 ,  G06F2211/1057 ,  G06F2211/1059

    Abstract: A system and method for intra-device data protection in a RAID array. A computer system comprises client computers and data storage arrays coupled to one another via a network. A data storage array utilizes solid-state drives and Flash memory cells for data storage. A storage controller within a data storage array is configured to identify a unit of data stored in the data storage subsystem, wherein said unit of data is stored across at least a first storage device and a second storage device of the plurality of storage devices, each of the first storage device and the second storage device storing intra-device redundancy data corresponding to the unit of data; and change an amount of intra-device redundancy data corresponding to the unit of data on only the first storage device.

    Abstract translation: 用于RAID阵列中的设备内数据保护的系统和方法。 计算机系统包括经由网络彼此耦合的客户端计算机和数据存储阵列。 数据存储阵列利用固态驱动器和闪存单元进行数据存储。 数据存储阵列中的存储控制器被配置为识别存储在数据存储子系统中的数据单元，其中所述数据单元被存储在多个存储设备中的至少第一存储设备和第二存储设备上，每个存储控制器 所述第一存储设备和所述第二存储设备存储与所述数据单元对应的设备内冗余数据; 并且仅在第一存储设备上改变对应于数据单元的设备内冗余数据量。

    Data protection using intra-device parity and intra-device parity
    15.
    发明授权
    Data protection using intra-device parity and intra-device parity 有权

    公开(公告)号：US11579974B1

    公开(公告)日：2023-02-14

    申请号：US17075449

    申请日：2020-10-20

    Applicant: PURE STORAGE, INC.

    Inventor： John Colgrove ,  John Hayes ,  Bo Hong ,  Ethan Miller

    IPC: G06F11/00 ,  G06F11/10 ,  G06F3/06

    Abstract: A system and method for offset protection data in a RAID array. A computer system comprises client computers and data storage arrays coupled to one another via a network. A data storage array utilizes solid-state drives and Flash memory cells for data storage. A storage controller within a data storage array is configured to store user data in a first page of a first storage device of the plurality of storage devices; generate intra-device protection data corresponding to the user data, and store the intra-device protection data at a first offset within the first page. The controller is further configured to generate inter-device protection data corresponding to the first page, and store the inter-device protection data at a second offset within a second page in a second storage device of the plurality of storage devices, wherein the first offset is different from the second offset.

    Responding to variable response time behavior in a storage environment
    16.
    发明授权
    Responding to variable response time behavior in a storage environment 有权

    公开(公告)号：US11307772B1

    公开(公告)日：2022-04-19

    申请号：US15221686

    申请日：2016-07-28

    Applicant: Pure Storage, Inc.

    Inventor： John Colgrove ,  John Hayes ,  Bo Hong ,  Feng Wang ,  Ethan Miller ,  Craig Harmer

    IPC: G06F3/06

    Abstract: A system and method for effectively scheduling read and write operations among a plurality of solid-state storage devices. A computer system comprises client computers and data storage arrays coupled to one another via a network. A data storage array utilizes solid-state drives and Flash memory cells for data storage. A storage controller within a data storage array comprises an I/O scheduler. The storage controller is configured to receive a read request targeted to the data storage medium, and identify at least a first storage device of the plurality of storage devices which contains data targeted by the read request. In response to either detecting or predicting the first storage device will exhibit variable performance, the controller is configured to generate a reconstruct read request configured to obtain the data from one or more devices of the plurality of storage devices other than the first storage device.

    Intelligently sizing high latency I/O requests in a storage environment
    17.
    发明授权
    Intelligently sizing high latency I/O requests in a storage environment 有权

    公开(公告)号：US11275509B1

    公开(公告)日：2022-03-15

    申请号：US16266734

    申请日：2019-02-04

    Applicant: PURE STORAGE, INC.

    Inventor： John Colgrove ,  Craig Harmer ,  John Hayes ,  Bo Hong ,  Ethan Miller ,  Feng Wang

    IPC: G06F13/14 ,  G06F3/06 ,  G06F11/07 ,  G06F11/10

    Abstract: A computer system comprising: a data storage medium comprising a plurality of storage devices configured to store data; and a data storage controller coupled to the data storage medium; wherein the data storage controller is configured to: receive read and write requests targeted to the data storage medium; schedule said read and write requests for processing by said plurality of storage devices; detect a given device of the plurality of devices is exhibiting an unscheduled behavior comprising variable performance by one or more of the plurality of storage devices, wherein the variable performance comprises at least one of a relatively high response latency or relatively low throughput; and schedule one or more reactive operations in response to detecting the occurrence of the unscheduled behavior, said one or more reactive operations being configured to cause the given device to enter a known state.

    Reducing a number of storage devices in a storage system that are exhibiting variable I/O response times
    18.
    发明授权
    Reducing a number of storage devices in a storage system that are exhibiting variable I/O response times 有权

    公开(公告)号：US10156998B1

    公开(公告)日：2018-12-18

    申请号：US15418035

    申请日：2017-01-27

    Applicant: Pure Storage, Inc.

    Inventor： John Colgrove ,  John Hayes ,  Bo Hong ,  Feng Wang ,  Ethan Miller ,  Craig Harmer

    IPC: G06F3/06

    Abstract: A system and method for effectively scheduling read and write operations among a plurality of solid-state storage devices. A computer system comprises client computers and data storage arrays coupled to one another via a network. A data storage array utilizes solid-state drives and Flash memory cells for data storage. A storage controller within a data storage array comprises an I/O scheduler. The characteristics of corresponding storage devices are used to schedule I/O requests to the storage devices in order to maintain relatively consistent response times at predicted times. Should a device exhibit an unscheduled behavior which may be indicative of the device being in an unknown state, the scheduler may schedule one or more reactive operations on the device configured to cause the device to enter a known state.

    Adjusting a number of storage devices in a storage system that may be utilized to simultaneously service high latency operations
    19.
    发明授权
    Adjusting a number of storage devices in a storage system that may be utilized to simultaneously service high latency operations 有权

    公开(公告)号：US10126982B1

    公开(公告)日：2018-11-13

    申请号：US15418944

    申请日：2017-01-30

    Applicant: Pure Storage, Inc.

    Inventor： John Colgrove ,  John Hayes ,  Bo Hong ,  Feng Wang ,  Ethan Miller ,  Craig Harmer

    IPC: G06F3/06

    Abstract: A system and method for effectively scheduling read and write operations among a plurality of solid-state storage devices. A computer system comprises client computers and data storage arrays coupled to one another via a network. A data storage array utilizes solid-state drives and Flash memory cells for data storage. A storage controller within a data storage array comprises an I/O scheduler. The characteristics of corresponding storage devices are used to schedule I/O requests to the storage devices in order to maintain relatively consistent response times at predicted times. In order to reduce a likelihood of unscheduled behaviors of the storage devices, the storage controller is configured to schedule proactive operations on the storage devices that will reduce a number of occurrences of unscheduled behaviors.

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