公开(公告)号：US20240143439A1

公开(公告)日：2024-05-02

申请号：US17992452

申请日：2022-11-22

Applicant: Pure Storage, Inc.

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

IPC: G06F11/10 ,  H03M13/35 ,  H03M13/37

CPC classification number: G06F11/1048 ,  H03M13/353 ,  H03M13/373 ,  H03M13/3761 ,  H03M13/1102

Abstract: A method for adjustable error correction in a storage cluster is provided. The method includes determining health of a non-volatile memory of a non-volatile solid-state storage unit of each of a plurality of storage nodes in a storage cluster on a basis of per flash package, per flash die, per flash plane, per flash block, or per flash page. The determining is performed by the storage cluster. The plurality of storage nodes is housed within a chassis that couples the storage nodes as the storage cluster. The method includes adjusting erasure coding across the plurality of storage nodes based on the health of the non-volatile memory and distributing user data throughout the plurality of storage nodes through the erasure coding. The user data is accessible via the erasure coding from a remainder of the plurality of storage nodes if any of the plurality of storage nodes are unreachable.

公开(公告)号：US20220083420A1

公开(公告)日：2022-03-17

申请号：US17535152

申请日：2021-11-24

Applicant: Pure Storage, Inc.

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

IPC: G06F11/10 ,  G06F16/182 ,  G11C16/34 ,  G11C29/52 ,  G06F11/07 ,  G11C29/44

Abstract: In some embodiments, a method for die-level monitoring 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 chassis that couples the storage nodes. Each of the storage nodes has a non-volatile solid-state storage with non-volatile memory and the user data is accessible via the erasure coding from a remainder of the storage nodes in event of two of the storage nodes being unreachable. The method includes producing diagnostic information that diagnoses the non-volatile memory on a basis of per package, per die, per plane, per block, or per page, the producing performed by each of the plurality of storage nodes. The method includes writing the diagnostic information to a memory in the storage cluster.

公开(公告)号：US11204830B2

公开(公告)日：2021-12-21

申请号：US16800669

申请日：2020-02-25

Applicant: Pure Storage, Inc.

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

IPC: G06F11/10 ,  G11C29/52 ,  G06F11/07 ,  G11C29/44 ,  G11C29/04 ,  G06F16/182 ,  G11C16/34 ,  G06F12/02

Abstract: In some embodiments, a method for die-level monitoring 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 chassis that couples the storage nodes. Each of the storage nodes has a non-volatile solid-state storage with non-volatile memory and the user data is accessible via the erasure coding from a remainder of the storage nodes in event of two of the storage nodes being unreachable. The method includes producing diagnostic information that diagnoses the non-volatile memory on a basis of per package, per die, per plane, per block, or per page, the producing performed by each of the plurality of storage nodes. The method includes writing the diagnostic information to a memory in the storage cluster.

公开(公告)号：US20210357133A1

公开(公告)日：2021-11-18

申请号：US17388982

申请日：2021-07-29

Applicant: PURE STORAGE, INC.

Inventor： John Martin Hayes ,  Hari Kannan ,  Nenad Miladinovic

IPC: G06F3/06 ,  H04L29/08 ,  G06F11/10

Abstract: A method for erasure detection in a storage cluster is provided. The method includes establishing a connection, via a network, of a storage unit to one of a plurality of storage nodes of a storage cluster and determining, for at least one page of a storage memory of the storage unit, that the at least one page is erased. The storage unit is one of a plurality of storage units configured to store user data in memory of the storage units in accordance with direction from the plurality of storage nodes. The method includes communicating from the storage unit to the one of the plurality of storage nodes that the at least one page is erased.

公开(公告)号：US20210216209A1

公开(公告)日：2021-07-15

申请号：US17213697

申请日：2021-03-26

Applicant: Pure Storage, Inc.

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

IPC: G06F3/06 ,  G06F11/10 ,  H03M13/37 ,  G11C29/52 ,  H03M13/15

Abstract: A storage cluster is provided. The storage cluster includes a plurality of storage nodes, each of the plurality of storage nodes having nonvolatile solid-state memory and a plurality of operations queues coupled to the solid-state memory. The plurality of storage nodes is configured to distribute the user data and metadata throughout the plurality of storage nodes such that the plurality of storage nodes can access the user data with a failure of two of the plurality of storage nodes. Each of the plurality of storage nodes is configured to determine whether a read of 1 or more bits in the solid-state memory via a first path is within a latency budget. The plurality of storage nodes is configured to perform a read of user data or metadata via a second path, responsive to a determination that the read of the bit via the first path is not within the latency budget.

公开(公告)号：US10983859B2

公开(公告)日：2021-04-20

申请号：US14454537

申请日：2014-08-07

Applicant: Pure Storage, Inc.

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

IPC: G06F11/10 ,  G06F11/00 ,  H03M13/35 ,  H03M13/37 ,  H03M13/11 ,  H03M13/15 ,  H03M13/00

Abstract: A method for adjustable error correction in a storage cluster is provided. The method includes determining health of a non-volatile memory of a non-volatile solid-state storage unit of each of a plurality of storage nodes in a storage cluster on a basis of per flash package, per flash die, per flash plane, per flash block, or per flash page. The determining is performed by the storage cluster. The plurality of storage nodes is housed within a chassis that couples the storage nodes as the storage cluster. The method includes adjusting erasure coding across the plurality of storage nodes based on the health of the non-volatile memory and distributing user data throughout the plurality of storage nodes through the erasure coding. The user data is accessible via the erasure coding from a remainder of the plurality of storage nodes if any of the plurality of storage nodes are unreachable.

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.

公开(公告)号：US20180165154A1

公开(公告)日：2018-06-14

申请号：US15882886

申请日：2018-01-29

Applicant: PURE STORAGE, INC.

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

IPC: G06F11/10 ,  G06F11/07 ,  G06F17/30 ,  G11C16/34 ,  G11C29/44

CPC classification number: G06F11/1068 ,  G06F11/076 ,  G06F11/1048 ,  G06F12/0246 ,  G06F16/182 ,  G06F16/1827 ,  G06F2212/7207 ,  G06F2212/7208 ,  G06F2212/7211 ,  G11C16/349 ,  G11C29/44 ,  G11C29/52 ,  G11C2029/0409 ,  G11C2029/0411

Abstract: In some embodiments, a method for die-level monitoring 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 chassis that couples the storage nodes. Each of the storage nodes has a non-volatile solid-state storage with non-volatile memory and the user data is accessible via the erasure coding from a remainder of the storage nodes in event of two of the storage nodes being unreachable. The method includes producing diagnostic information that diagnoses the non-volatile memory on a basis of per package, per die, per plane, per block, or per page, the producing performed by each of the plurality of storage nodes. The method includes writing the diagnostic information to a memory in the storage cluster.

公开(公告)号：US20170024141A1

公开(公告)日：2017-01-26

申请号：US15285410

申请日：2016-10-04

Applicant: PURE STORAGE, INC.

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

IPC: G06F3/06 ,  G11C29/52 ,  H03M13/15 ,  G06F11/10

CPC classification number: G06F3/0604 ,  G06F3/0619 ,  G06F3/064 ,  G06F3/0659 ,  G06F3/067 ,  G06F3/0688 ,  G06F11/1008 ,  G06F11/1068 ,  G11C29/52 ,  H03M13/1102 ,  H03M13/1515 ,  H03M13/154 ,  H03M13/373 ,  H03M13/3761

Abstract: A storage cluster is provided. The storage cluster includes a plurality of storage nodes, each of the plurality of storage nodes having nonvolatile solid-state memory and a plurality of operations queues coupled to the solid-state memory. The plurality of storage nodes is configured to distribute the user data and metadata throughout the plurality of storage nodes such that the plurality of storage nodes can access the user data with a failure of two of the plurality of storage nodes. Each of the plurality of storage nodes is configured to determine whether a read of 1 or more bits in the solid-state memory via a first path is within a latency budget. The plurality of storage nodes is configured to perform a read of user data or metadata via a second path, responsive to a determination that the read of the bit via the first path is not within the latency budget.

Abstract translation: 提供了一个存储集群。 存储集群包括多个存储节点，多个存储节点中的每一个具有非易失性固态存储器和耦合到固态存储器的多个操作队列。 多个存储节点被配置为在整个多个存储节点中分发用户数据和元数据，使得多个存储节点可以利用多个存储节点中的两个的故障来访问用户数据。 多个存储节点中的每一个被配置为确定经由第一路径的固态存储器中的1位或更多比特的读取是否处于等待时间预算内。 多个存储节点经配置以经由第二路径执行用户数据或元数据的读取，响应于确定经由第一路径的位的读取不在等待时间预算内。

公开(公告)号：US09495255B2

公开(公告)日：2016-11-15

申请号：US14454501

申请日：2014-08-07

Applicant: Pure Storage, Inc.

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

IPC: G06F11/08 ,  G06F11/16

CPC classification number: G06F11/2069 ,  G06F3/0619 ,  G06F3/064 ,  G06F3/0689 ,  G06F11/00 ,  G06F11/1076 ,  G06F11/1612 ,  G06F11/2066 ,  G06F2201/805 ,  G06F2201/82

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.

Abstract translation: 提供单个机箱内的多个存储节点。 多个存储节点被配置为一起作为存储集群通信。 多个存储节点具有用于用户数据存储的非易失性固态存储器。 多个存储节点被配置为通过对用户数据的擦除编码来分发与用户数据相关联的用户数据和整个多个存储节点的元数据。 多个存储节点被配置为通过从多个存储节点的其余部分向用户数据应用擦除编码来从多个存储节点中的两个存储节点的故障中恢复。 多个存储节点被配置为检测错误并通过多个存储节点之一的处理器，非易失性固态存储器的处理器或闪存之一来进行错误恢复。