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    Error recovery in a storage cluster
    31.
    发明授权
    Error recovery in a storage cluster 有权

    公开(公告)号：US10324812B2

    公开(公告)日：2019-06-18

    申请号：US15351303

    申请日：2016-11-14

    Applicant: PURE STORAGE, INC.

    Inventor： John D. Davis ,  John Hayes ,  Hari Kannan ,  Nenad Miladinovic ,  Zhangxi Tan

    IPC: G06F11/07 ,  G06F11/20 ,  G06F11/16 ,  G06F3/06 ,  G06F11/10

    Abstract: A plurality of storage nodes within a single chassis is provided. The plurality of storage nodes is configured to communicate together as a storage cluster. The plurality of storage nodes has a non-volatile solid-state storage for user data storage. The plurality of storage nodes is configured to distribute the user data and metadata associated with the user data throughout the plurality of storage nodes, with erasure coding of the user data. The plurality of storage nodes is configured to recover from failure of two of the plurality of storage nodes by applying the erasure coding to the user data from a remainder of the plurality of storage nodes. The plurality of storage nodes is configured to detect an error and engage in an error recovery via one of a processor of one of the plurality of storage nodes, a processor of the non-volatile solid state storage, or the flash memory.

    Direct Memory Access Data Format
    32.
    发明申请
    Direct Memory Access Data Format 审中-公开

    公开(公告)号：US20190171594A1

    公开(公告)日：2019-06-06

    申请号：US16267163

    申请日：2019-02-04

    Applicant: Pure Storage, Inc.

    Inventor： John Hayes ,  Shantanu Gupta ,  John Davis ,  Brian Gold ,  Zhangxi Tan

    IPC: G06F13/28 ,  G06F3/06

    Abstract: A method of applying a data format in a direct memory access transfer is provided. The method includes distributing user data throughout a plurality of storage nodes through erasure coding, wherein the plurality of storage nodes are housed within a single chassis that couples the storage nodes as a cluster, each of the plurality of storage nodes having nonvolatile solid-state memory for user data storage. The method includes reading a self-describing data portion from a first memory of the nonvolatile solid-state memory and extracting a destination from the self-describing data portion. The method includes writing data, from the self-describing data portion, to a second memory of the nonvolatile solid-state memory according to the destination.

    Rebuilding data across storage nodes
    33.
    发明授权
    Rebuilding data across storage nodes 有权

    公开(公告)号：US10303547B2

    公开(公告)日：2019-05-28

    申请号：US15315676

    申请日：2015-06-04

    Applicant: Pure Storage, Inc.

    Inventor： John Hayes ,  John Colgrove ,  Robert Lee ,  Joshua Robinson ,  Igor Ostrovsky

    IPC: G06F11/00 ,  G06F11/10

    Abstract: A method for proactively rebuilding user data in a plurality of storage nodes of a storage cluster is provided. The method includes distributing user data and metadata throughout the plurality of storage nodes such that the plurality of storage nodes can read the user data, using erasure coding, despite loss of two of the storage nodes. The method includes determining that one of the storage nodes is unreachable and determining to rebuild the user data for the one of the storage nodes that is unreachable. The method includes reading the user data across a remainder of the plurality of storage nodes, using the erasure coding and writing the user data across the remainder of the plurality of storage nodes, using the erasure coding. A plurality of storage nodes within a single chassis that can proactively rebuild the user data stored within the storage nodes is also provided.

    POINT TO POINT BASED BACKEND COMMUNICATION LAYER FOR STORAGE PROCESSING
    34.
    发明申请
    POINT TO POINT BASED BACKEND COMMUNICATION LAYER FOR STORAGE PROCESSING 审中-公开

    公开(公告)号：US20190141131A1

    公开(公告)日：2019-05-09

    申请号：US16241320

    申请日：2019-01-07

    Applicant: Pure Storage, Inc.

    Inventor： Par Botes ,  John Hayes ,  Zhangxi Tan

    IPC: H04L29/08 ,  G06F3/06 ,  H04L12/933

    Abstract: A storage system is provided. The storage system includes a plurality of storage nodes, each of the plurality of storage nodes having a plurality of storage units with storage memory. The system includes a first network coupling the plurality of storage nodes and a second network coupled to at least a subset of the plurality of storage units of each of the plurality of storage nodes such that one of the plurality of storage units of a first one of the plurality of storage nodes can initiate or relay a command to one of the plurality of storage units of a second one of the plurality of storage nodes via the second network without the command passing through the first network.

    Disaster recovery at high reliability in a storage cluster
    36.
    发明授权
    Disaster recovery at high reliability in a storage cluster 有权

    公开(公告)号：US10152397B2

    公开(公告)日：2018-12-11

    申请号：US14712761

    申请日：2015-05-14

    Applicant: Pure Storage, Inc.

    Inventor： John Hayes ,  Par Botes

    IPC: G06F11/00 ,  G06F11/20 ,  G06F11/14 ,  G06F21/62 ,  H04L9/08 ,  G06F3/06 ,  G06F21/60

    Abstract: A storage grid is provided. The storage grid includes a first cluster, a second cluster, and a third cluster. Each of the first cluster, the second cluster and the third cluster is configured to store an amount of data ranging from a portion of a copy of the data to a full copy of the data. The first cluster has a full copy of data written to the first cluster and at least a partial copy of data written to the second and third cluster. The second cluster has a full copy of data written to the second cluster, and at least a partial copy of the data written to the first and third cluster. The third cluster has a full copy of data written to the third cluster and at least a partial copy of the data written to the first and second cluster. A method of storing data is also provided.

    Scheduling of I/O in an SSD environment
    40.
    发明授权
    Scheduling of I/O in an SSD environment 有权
    在SSD环境中调度I / O

    公开(公告)号：US09569116B1

    公开(公告)日：2017-02-14

    申请号：US15000602

    申请日：2016-01-19

    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 ,  G06F3/0629 ,  G06F3/0653 ,  G06F3/0655 ,  G06F3/0659 ,  G06F3/0688 ,  G06F11/0727 ,  G06F11/0751 ,  G06F11/1076 ,  G06F11/3034 ,  G06F11/3055 ,  G06F11/3409 ,  G06F11/3485 ,  G06F12/0804 ,  G06F12/0866 ,  G06F2212/262 ,  G06F2212/502

    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.

    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。 为了减少存储设备的非预定行为的可能性，存储控制器被配置为对存储设备上的主动操作进行调度，这将减少多个未排程行为的发生。

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