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    UTILIZING UNMAPPED AND UNKNOWN STATES IN A REPLICATED STORAGE SYSTEM
    181.
    发明申请
    UTILIZING UNMAPPED AND UNKNOWN STATES IN A REPLICATED STORAGE SYSTEM 有权
    在不同的存储系统中应用未知和未知状态

    公开(公告)号：US20160098199A1

    公开(公告)日：2016-04-07

    申请号：US14508683

    申请日：2014-10-07

    Applicant: PURE Storage, Inc.

    Inventor： Christopher Golden ,  John Colgrove ,  Ethan L. Miller ,  Malcolm Sharpe ,  Steve Hodgson

    IPC: G06F3/06 ,  G06F12/10

    CPC classification number: G06F3/0604 ,  G06F3/065 ,  G06F3/0688 ,  G06F11/2094 ,  G06F12/0246 ,  G06F12/1009 ,  G06F2212/1056 ,  G06F2212/214 ,  G06F2212/7201

    Abstract: A system and method for utilizing unmapped and unknown states in a storage system. When a first portion of a first medium is determined to be unreachable from any other mediums, the first portion of the first medium may be put into an unmapped state, and its data may be discarded and the corresponding storage locations may be freed. During replication of the first medium to a replica storage array, the state of the first portion of the first medium may be translated from the unmapped state into an unknown state on the replica storage array. If another storage array has the data of the first portion of the first medium, this data may be used to overwrite the first portion of the first medium on the replica storage array, converting the first portion of the first medium from the unknown state into the mapped state.

    Abstract translation: 一种用于在存储系统中利用未映射和未知状态的系统和方法。 当第一介质的第一部分被确定为不能从任何其他介质访问时，第一介质的第一部分可以被置于未映射状态，并且其数据可能被丢弃，并且相应的存储位置可以被释放。 在将第一介质复制到副本存储阵列期间，可以将第一介质的第一部分的状态从未映射状态转换为副本存储阵列上的未知状态。 如果另一存储阵列具有第一介质的第一部分的数据，则可以使用该数据来覆盖副本存储阵列上的第一介质的第一部分，将第一介质的第一部分从未知状态转换为 映射状态。

    Scheduling of reactive I/O operations in a storage environment
    182.
    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：US09304694B2

    公开(公告)日：2016-04-05

    申请号：US14260059

    申请日：2014-04-23

    Applicant: PURE Storage, Inc.

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

    IPC: G06F3/06 ,  G06F11/10 ,  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。

    Storage Cluster
    185.
    发明申请
    Storage Cluster 审中-公开
    存储集群

    公开(公告)号：US20150355969A1

    公开(公告)日：2015-12-10

    申请号：US14491552

    申请日：2014-09-19

    Applicant: Pure Storage, Inc.

    Inventor： John Hayes ,  John Colgrove ,  Robert Lee ,  Peter Vajgel ,  Par Botes

    IPC: G06F11/10 ,  G06F12/02

    CPC classification number: G06F11/1076 ,  G06F3/06 ,  G06F3/0607 ,  G06F3/0613 ,  G06F3/0619 ,  G06F3/0632 ,  G06F3/065 ,  G06F3/0655 ,  G06F3/067 ,  G06F3/0688 ,  G06F11/1068 ,  G06F11/108 ,  G06F11/1092 ,  G06F12/0246 ,  G06F2201/845 ,  G06F2212/7206 ,  G06F2212/7207 ,  H03M13/154

    Abstract: A plurality of storage nodes is provided. The plurality of storage nodes is configured to communicate together as a storage cluster. Each of the plurality of storage nodes includes nonvolatile solid-state memory. The plurality of storage nodes is configured to distribute 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 one of the plurality of storage nodes. A chassis enclosing the plurality of storage nodes includes power distribution, a high speed communication bus and the ability to install one or more storage nodes which may use the power distribution and communication bus in some embodiments. A method for accessing user data in a plurality of storage nodes having nonvolatile solid-state memory is also provided.

    Abstract translation: 提供多个存储节点。 多个存储节点被配置为一起作为存储集群通信。 多个存储节点中的每一个包括非易失性固态存储器。 多个存储节点被配置为在整个多个存储节点中分配与用户数据相关联的用户数据和元数据，使得多个存储节点使用擦除编码保持读取用户数据的能力，尽管丢失了 多个存储节点。 在一些实施例中，包围多个存储节点的底盘包括功率分配，高速通信总线以及安装可能使用配电和通信总线的一个或多个存储节点的能力。 还提供了一种用于访问具有非易失性固态存储器的多个存储节点中的用户数据的方法。

    STORAGE CLUSTER
    186.
    发明申请
    STORAGE CLUSTER 有权
    存储群集

    公开(公告)号：US20150355848A1

    公开(公告)日：2015-12-10

    申请号：US14610766

    申请日：2015-01-30

    Applicant: Pure Storage, Inc.

    Inventor： John Hayes ,  John Colgrove ,  John D. Davis

    IPC: G06F3/06

    CPC classification number: G06F11/1076 ,  G06F3/06 ,  G06F3/0607 ,  G06F3/0613 ,  G06F3/0619 ,  G06F3/0632 ,  G06F3/065 ,  G06F3/0655 ,  G06F3/067 ,  G06F3/0688 ,  G06F11/1068 ,  G06F11/108 ,  G06F11/1092 ,  G06F12/0246 ,  G06F2201/845 ,  G06F2212/7206 ,  G06F2212/7207 ,  H03M13/154

    Abstract: A plurality of storage nodes in a single chassis is provided. The plurality of storage nodes in the single chassis is configured to communicate together as a storage cluster. 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. A plurality of compute nodes is included in the single chassis, each of the plurality of compute nodes is configured to communicate with the plurality of storage nodes. A method for accessing user data in a plurality of storage nodes having nonvolatile solid-state memory is also provided.

    Abstract translation: 提供了单个机箱中的多个存储节点。 单个机箱中的多个存储节点被配置为一起作为存储集群通信。 多个存储节点中的每一个包括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在整个多个存储节点中分配与用户数据相关联的用户数据和元数据，使得多个存储节点使用擦除编码保持读取用户数据的能力，尽管丢失了两个 的多个存储节点。 多个计算节点包括在单个机箱中，多个计算节点中的每一个被配置为与多个存储节点进行通信。 还提供了一种用于访问具有非易失性固态存储器的多个存储节点中的用户数据的方法。

    Intra-device data protection in a raid array
    187.
    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：US09058116B2

    公开(公告)日：2015-06-16

    申请号：US14450666

    申请日：2014-08-04

    Applicant: PURE Storage, Inc.

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

    IPC: G06F12/00 ,  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。

    GARBAGE COLLECTION IN A STORAGE SYSTEM
    188.
    发明申请
    GARBAGE COLLECTION IN A STORAGE SYSTEM 有权
    储存系统中的收集

    公开(公告)号：US20150067286A1

    公开(公告)日：2015-03-05

    申请号：US14537709

    申请日：2014-11-10

    Applicant: PURE Storage, Inc.

    Inventor： John Colgrove ,  John Hayes ,  Ethan Miller ,  Cary Sandvig ,  Joseph S. Hasbani ,  Feng Wang

    IPC: G06F12/02 ,  G06F3/06

    CPC classification number: G06F12/0253 ,  G06F3/0608 ,  G06F3/061 ,  G06F3/0641 ,  G06F3/065 ,  G06F3/0665 ,  G06F3/067 ,  G06F3/0688 ,  G06F17/30156 ,  G06F2212/702

    Abstract: A system and method for performing garbage collection. A system includes a storage medium, a first table including entries which map a virtual address to locations in the storage medium, and a second table with entries which include a reverse mapping of a physical address in a data storage medium to one or more virtual addresses. A storage controller is configured to perform garbage collection. During garbage collection, the controller is configured to identify one or more entries in the second table which correspond to a segment to be garbage collected. In response to determining the first table includes a valid mapping for a virtual address included in an entry of the one of the one or more entries, the controller is configured to copy data from a first location identified in the entry to a second location in the data storage medium, and reclaim the first storage location.

    Abstract translation: 一种用于执行垃圾回收的系统和方法。 系统包括存储介质，包括将虚拟地址映射到存储介质中的位置的条目的第一表以及包括数据存储介质中的物理地址与一个或多个虚拟地址的反向映射的条目的第二表 。 存储控制器被配置为执行垃圾收集。 在垃圾收集期间，控制器被配置为识别第二表中与要被垃圾收集的段相对应的一个或多个条目。 响应于确定第一表包括包含在一个或多个条目中的一个条目的条目中的虚拟地址的有效映射，控制器被配置为将数据从条目中标识的第一位置复制到第 数据存储介质，并回收第一存储位置。

    Variable length encoding in a storage system
    189.
    发明授权
    Variable length encoding in a storage system 有权
    存储系统中的可变长度编码

    公开(公告)号：US08954710B2

    公开(公告)日：2015-02-10

    申请号：US14312093

    申请日：2014-06-23

    Applicant: PURE Storage, Inc.

    Inventor： John Colgrove ,  John Hayes ,  Ethan Miller

    IPC: G06F12/10 ,  G06F3/06

    CPC classification number: G06F12/1009 ,  G06F3/0608 ,  G06F3/0641 ,  G06F3/0688 ,  G06F12/1036 ,  G06F2212/657

    Abstract: A system and method for maintaining a mapping table in a data storage subsystem. A data storage subsystem supports multiple mapping tables including a plurality of entries. Each of the entries comprise a tuple including a key. A data storage controller is configured to encode each tuple in the mapping table using a variable length encoding. Additionally, the mapping table may be organized as a plurality of time ordered levels, with each level including one or more mapping table entries. Further, a particular encoding of a plurality of encodings for a given tuple may be selected based at least in part on a size of the given tuple as unencoded, a size of the given tuple as encoded, and a time to encode the given tuple.

    Abstract translation: 一种用于在数据存储子系统中维护映射表的系统和方法。 数据存储子系统支持包括多个条目的多个映射表。 每个条目包括包括密钥的元组。 数据存储控制器被配置为使用可变长度编码对映射表中的每个元组进行编码。 另外，映射表可以被组织为多个时间有序的级别，其中每个级别包括一个或多个映射表条目。 此外，可以至少部分地基于给定元组的大小作为未编码，被编码的给定元组的大小和对给定元组进行编码的时间来选择给定元组的多个编码的特定编码。

    SCHEDULING OF RECONSTRUCTIVE I/O READ OPERATIONS IN A STORAGE ENVIRONMENT
    190.
    发明申请
    SCHEDULING OF RECONSTRUCTIVE I/O READ OPERATIONS IN A STORAGE ENVIRONMENT 有权
    在存储环境中调度重写I / O读操作

    公开(公告)号：US20150032958A1

    公开(公告)日：2015-01-29

    申请号：US14513007

    申请日：2014-10-13

    Applicant: PURE Storage, Inc.

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

    IPC: G06F3/06

    CPC classification number: G06F3/0619 ,  G06F3/061 ,  G06F3/0613 ,  G06F3/0646 ,  G06F3/0659 ,  G06F3/0665 ,  G06F3/0688 ,  G06F3/0689 ,  G06F11/0727 ,  G06F11/0751 ,  G06F11/1076 ,  G06F12/0804 ,  G06F2003/0697

    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.

    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。 存储控制器被配置为接收针对数据存储介质的读取请求，并且识别包含读取请求所针对的数据的多个存储设备中的至少第一存储设备。 响应于检测或预测第一存储设备将呈现可变性能，控制器被配置为生成重构读取请求，其被配置为从除第一存储设备之外的多个存储设备中的一个或多个设备获得数据。

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