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    Storage cluster operation using erasure coded data
    31.
    发明授权
    Storage cluster operation using erasure coded data 有权

    公开(公告)号：US10572176B2

    公开(公告)日：2020-02-25

    申请号：US15830984

    申请日：2017-12-04

    Applicant: PURE STORAGE, INC.

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

    IPC: G06F3/06 ,  G06F11/10 ,  G06F13/28

    Abstract: A non-volatile solid-state storage is provided. The non-volatile solid state storage includes a non-volatile random access memory (NVRAM) addressable by a processor external to the non-volatile solid state storage. The NVRAM is configured to store user data and metadata relating to the user data. The non-volatile solid state storage includes a flash memory addressable by the processor. The flash memory is configured to store the user data responsive to the processor directing transfer of the user data from the NVRAM to the flash memory.

    MECHANISM FOR PERSISTING MESSAGES IN A STORAGE SYSTEM
    32.
    发明申请
    MECHANISM FOR PERSISTING MESSAGES IN A STORAGE SYSTEM 审中-公开

    公开(公告)号：US20200012578A1

    公开(公告)日：2020-01-09

    申请号：US16576084

    申请日：2019-09-19

    Applicant: Pure Storage, Inc.

    Inventor： John Hayes ,  John Davis ,  Brian Gold ,  Shantanu Gupta ,  Robert Lee ,  Igor Ostrovsky ,  Rusty Sears

    IPC: G06F11/20 ,  G06F3/06 ,  G06F11/10 ,  G06F12/06 ,  G06F11/14

    Abstract: A plurality of storage nodes is provided. Each of the plurality of storage nodes includes nonvolatile solid-state memory 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 such that the plurality of storage nodes maintain the ability to read the user data, using erasure coding, despite a loss of two of the plurality of storage nodes. The plurality of storage nodes is configured to initiate an action based on the redundant copies of the metadata, responsive to achieving a level of redundancy for the redundant copies of the metadata. A method for accessing user data in a plurality of storage nodes having nonvolatile solid-state memory is also provided.

    Scheduling policy for queues in a non-volatile solid-state storage
    34.
    发明授权
    Scheduling policy for queues in a non-volatile solid-state storage 有权

    公开(公告)号：US10185506B2

    公开(公告)日：2019-01-22

    申请号：US15357243

    申请日：2016-11-21

    Applicant: Pure Storage, Inc.

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

    IPC: G06F3/06 ,  G06F11/10 ,  G06F12/02 ,  G06F13/16 ,  H03M13/15 ,  G06F12/1009

    Abstract: A method of applying scheduling policies 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 coupling the storage nodes as a cluster. The method includes receiving operations relating to a non-volatile memory of one of the plurality of storage nodes into a plurality of operation queues. The method includes evaluating each of the operations in the plurality of operation queues as to benefit to the non-volatile solid-state storage according to a plurality of policies. For each channel of a plurality of channels coupling the operation queues to the non-volatile memory, the method includes iterating a selection and an execution of a next operation from the plurality of operation queues, with each next operation having a greater benefit than at least a subset of operations remaining in the operation queues.

    Transactional commits with hardware assists in remote memory
    35.
    发明授权
    Transactional commits with hardware assists in remote memory 有权

    公开(公告)号：US10140149B1

    公开(公告)日：2018-11-27

    申请号：US14716543

    申请日：2015-05-19

    Applicant: Pure Storage, Inc.

    Inventor： John Hayes ,  Brian Gold ,  Shantanu Gupta ,  Robert Lee ,  Hari Kannan

    IPC: G06F17/30 ,  G06F9/46 ,  G06F12/0802 ,  G06F3/06

    Abstract: A method for a transactional commit in a storage unit is provided. The method includes receiving a logical record from a storage node into a transaction engine of a storage unit of the storage node and writing the logical record into a data structure of the transaction engine. The method includes writing, to a command queue of the transaction engine, an indication to perform an atomic update using the logical record and transferring each portion of the logical record from the data structure of the transaction engine to non-persistent memory of the storage unit as a committed transaction. A storage unit for a storage system is also provided.

    Self-describing data format for DMA in a non-volatile solid-state storage
    39.
    发明授权
    Self-describing data format for DMA in a non-volatile solid-state storage 有权

    公开(公告)号：US09747229B1

    公开(公告)日：2017-08-29

    申请号：US14323894

    申请日：2014-07-03

    Applicant: Pure Storage, Inc.

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

    IPC: G06F13/36 ,  G06F13/28 ,  G06F3/06

    CPC classification number: G06F13/28 ,  G06F3/0625 ,  G06F3/0629 ,  G06F3/0688

    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.

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