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    CLUSTERED RAID ASSIMILATION MANAGEMENT
    1.
    发明申请
    CLUSTERED RAID ASSIMILATION MANAGEMENT 有权
    集群RAID辅助管理

    公开(公告)号：US20170075780A1

    公开(公告)日：2017-03-16

    申请号：US15143074

    申请日：2016-04-29

    Applicant: NetApp, Inc.

    Inventor： Rajesh Sundaram ,  Bharat Baddepudi

    IPC: G06F11/20 ,  G06F3/06

    CPC classification number: G06F11/2069 ,  G06F3/0604 ,  G06F3/0619 ,  G06F3/0632 ,  G06F3/0634 ,  G06F3/065 ,  G06F3/0659 ,  G06F3/0689 ,  G06F11/2092 ,  G06F2201/805 ,  G06F2201/82

    Abstract: In one embodiment, a node of a cluster is coupled to a storage array of storage devices. The node executes a storage input/output (I/O) stack having a redundant array of independent disks (RAID) layer that organizes the storage devices within the storage array as a plurality of RAID groups. Configuration information is stored as a cluster database. The configuration information identifies the RAID groups associated with the storage devices. Each RAID group is associated with a plurality of segments and each segment has a different RAID configuration.

    Abstract translation: 在一个实施例中，集群的节点耦合到存储设备的存储阵列。 节点执行具有独立磁盘（RAID）层的冗余阵列的存储输入/输出（I / O）堆栈，其将存储阵列内的存储设备组织为多个RAID组。 配置信息存储为集群数据库。 配置信息标识与存储设备关联的RAID组。 每个RAID组与多个段相关联，并且每个段具有不同的RAID配置。

    Flash optimized, log-structured layer of a file system
    2.
    发明授权
    Flash optimized, log-structured layer of a file system 有权
    闪存优化，文件系统的日志结构层

    公开(公告)号：US08880788B1

    公开(公告)日：2014-11-04

    申请号：US14160991

    申请日：2014-01-22

    Applicant: NetApp, Inc.

    Inventor： Rajesh Sundaram ,  Stephen Daniel ,  Jeffrey S. Kimmel ,  Blake H. Lewis

    IPC: G06F12/00 ,  G06F3/06

    CPC classification number: G06F17/30138 ,  G06F3/0604 ,  G06F3/0608 ,  G06F3/0616 ,  G06F3/064 ,  G06F3/0643 ,  G06F3/0644 ,  G06F3/0647 ,  G06F3/0659 ,  G06F3/0679 ,  G06F3/0685 ,  G06F3/0688 ,  G06F12/0246 ,  G06F17/30185 ,  G06F17/30218 ,  G06F2003/0697 ,  G06F2212/2022 ,  G06F2212/7208

    Abstract: In one embodiment, a flash-optimized, log-structured layer of a file system of a storage input/output (I/O) stack executes on one or more nodes of a cluster. The log-structured layer of the file system provides sequential storage of data and metadata on solid state drives (SSDs) to reduce write amplification, while leveraging variable compression and variable length data features of the storage I/O stack. The data may be organized as an arbitrary number of variable-length extents of one or more host-visible logical units (LUNs). The metadata may include mappings from host-visible logical block address ranges of a LUN to extent keys, as well as mappings of the extent keys to SSD storage locations of the extents. The storage location of an extent on SSD is effectively “virtualized” by its mapped extent key such that relocation of the extent on SSD does not require update to volume layer metadata.

    Abstract translation: 在一个实施例中，存储输入/输出（I / O）堆栈的文件系统的闪存优化的日志结构化层在集群的一个或多个节点上执行。 文件系统的日志结构化层在固态驱动器（SSD）上提供数据和元数据的顺序存储，以减少写入放大，同时利用存储I / O堆栈的可变压缩和可变长度数据特征。 数据可以被组织为一个或多个主机可见逻辑单元（LUN）的任意数量的可变长度盘区。 元数据可以包括从LUN到扩展密钥的主机可见逻辑块地址范围的映射，以及扩展密钥到扩展区的SSD存储位置的映射。 SSD上的盘区的存储位置被其映射的盘区密钥有效地“虚拟化”，使得SSD上盘区的重新定位不需要更新到卷层元数据。

    FILE SYSTEM DRIVEN RAID REBUILD TECHNIQUE
    4.
    发明申请
    FILE SYSTEM DRIVEN RAID REBUILD TECHNIQUE 审中-公开
    文件系统驱动RAID重建技术

    公开(公告)号：US20160274973A1

    公开(公告)日：2016-09-22

    申请号：US15166600

    申请日：2016-05-27

    Applicant: NetApp, Inc.

    Inventor： Rajesh Sundaram ,  Bharat Baddepudi ,  Jeffrey S. Kimmel ,  T. Byron Rakitzis

    IPC: G06F11/10 ,  G11C29/52 ,  G06F17/30 ,  G06F3/06

    CPC classification number: G06F11/1084 ,  G06F3/0619 ,  G06F3/065 ,  G06F3/0653 ,  G06F3/0688 ,  G06F3/0689 ,  G06F11/1008 ,  G06F11/1068 ,  G06F11/1076 ,  G06F11/108 ,  G06F11/1092 ,  G06F11/1096 ,  G06F17/30218 ,  G06F2211/1057 ,  G11C29/52

    Abstract: Embodiments described herein are directed to a file system driven RAID rebuild technique. A layered file system may organize storage of data as segments spanning one or more sets of storage devices, such as solid state drives (SSDs), of a storage array, wherein each set of SSDs may form a RAID group configured to provide data redundancy for a segment. The file system may then drive (i.e., initiate) rebuild of a RAID configuration of the SSDs on a segment-by-segment basis in response to cleaning of the segment (i.e., segment cleaning). Each segment may include one or more RAID stripes that provide a level of data redundancy (e.g., single parity RAID 5 or double parity RAID 6) as well as RAID organization (i.e., distribution of data and parity) for the segment. Notably, the level of data redundancy and RAID organization may differ among the segments of the array.

    Abstract translation: 本文描述的实施例涉及文件系统驱动的RAID重建技术。 分层文件系统可以将数据的存储组织为跨越存储阵列的一组或多组存储设备（例如固态驱动器（SSD））的段，其中每组SSD可以形成RAID组，其被配置为提供数据冗余 一段 然后文件系统可以响应于段的清除（即，段清除）逐个段地驱动（即，启动）重建SSD的RAID配置。 每个段可以包括一个或多个提供数据冗余级别（例如，单个奇偶校验RAID 5或双奇偶校验RAID 6）的RAID条带以及用于该段的RAID组织（即，数据和奇偶校验的分配）。 值得注意的是，数据冗余和RAID组织的级别可能在阵列的各个部分之间不同。

    CLUSTERED RAID ASSIMILATION MANAGEMENT
    6.
    发明申请
    CLUSTERED RAID ASSIMILATION MANAGEMENT 审中-公开
    集群RAID辅助管理

    公开(公告)号：US20160004447A1

    公开(公告)日：2016-01-07

    申请号：US14854850

    申请日：2015-09-15

    Applicant: NetApp, Inc.

    Inventor： Rajesh Sundaram ,  Bharat Baddepudi

    IPC: G06F3/06

    CPC classification number: G06F11/2069 ,  G06F3/0604 ,  G06F3/0619 ,  G06F3/0632 ,  G06F3/0634 ,  G06F3/065 ,  G06F3/0659 ,  G06F3/0689 ,  G06F11/2092 ,  G06F2201/805 ,  G06F2201/82

    Abstract: In one embodiment, a node of a cluster is coupled to a storage array of storage devices. The node executes a storage input/output (I/O) stack having a redundant array of independent disks (RAID) layer that organizes the storage devices within the storage array as a plurality of RAID groups. Configuration information is stored as a cluster database. The configuration information identifies the RAID groups associated with the storage devices. Each RAID group is associated with a plurality of segments and each segment has a different RAID configuration.

    Abstract translation: 在一个实施例中，集群的节点耦合到存储设备的存储阵列。 节点执行具有独立磁盘（RAID）层的冗余阵列的存储输入/输出（I / O）堆栈，其将存储阵列内的存储设备组织为多个RAID组。 配置信息存储为集群数据库。 配置信息标识与存储设备关联的RAID组。 每个RAID组与多个段相关联，并且每个段具有不同的RAID配置。

    Global in-line extent-based deduplication
    8.
    发明授权
    Global in-line extent-based deduplication 有权
    全球在线范围重复数据删除

    公开(公告)号：US09529546B2

    公开(公告)日：2016-12-27

    申请号：US14150689

    申请日：2014-01-08

    Applicant: NetApp, Inc.

    Inventor： Rajesh Sundaram ,  Jeffrey S. Kimmel ,  Blake H. Lewis

    IPC: G06F3/0484 ,  G06F3/06

    CPC classification number: G06F3/0641 ,  G06F3/0604 ,  G06F3/0608 ,  G06F3/0643 ,  G06F3/067 ,  G06F3/0688 ,  G06F2003/0697

    Abstract: In one embodiment, a layered file system includes a volume layer and an extent store layer configured to provide sequential log-structured layout of data and metadata on solid state drives (SSDs) of one or more storage arrays. The data is organized as variable-length extents of one or more logical units (LUNs). The metadata includes volume metadata mappings from offset ranges of a LUN to extent keys and extent metadata mappings of the extent keys to storage locations of the extents on the SSDs. The extent store layer maintaining the extent metadata mappings determines whether an extent is stored on a storage array, and, in response to determination that the extent is stored on the storage array, returns an extent key for the stored extent to the volume layer to enable global inline de-duplication that obviates writing a duplicate copy of the extent on the storage array.

    Abstract translation: 在一个实施例中，分层文件系统包括卷层和盘区存储层，其被配置为在一个或多个存储阵列的固态驱动器（SSD）上提供数据和元数据的顺序日志结构布局。 数据被组织为一个或多个逻辑单元（LUN）的可变长度范围。 元数据包括从LUN的偏移范围到扩展密钥的卷元数据映射以及扩展密钥到SSD上的扩展区的存储位置的扩展元数据映射。 维护盘区元数据映射的盘区存储层确定盘区是否存储在存储阵列上，并且响应于确定盘区存储在存储阵列上，将存储的盘区的盘区密钥返回到卷层以启用 全局内联重复数据删除，从而避免在存储阵列上写入扩展区的重复副本。

    Clustered RAID assimilation management
    9.
    发明授权
    Clustered RAID assimilation management 有权
    集群RAID同化管理

    公开(公告)号：US09367241B2

    公开(公告)日：2016-06-14

    申请号：US14854850

    申请日：2015-09-15

    Applicant: NetApp, Inc.

    Inventor： Rajesh Sundaram ,  Bharat Baddepudi

    IPC: G06F12/02 ,  G06F3/06 ,  G06F11/20

    CPC classification number: G06F11/2069 ,  G06F3/0604 ,  G06F3/0619 ,  G06F3/0632 ,  G06F3/0634 ,  G06F3/065 ,  G06F3/0659 ,  G06F3/0689 ,  G06F11/2092 ,  G06F2201/805 ,  G06F2201/82

    Abstract: In one embodiment, a node of a cluster is coupled to a storage array of storage devices. The node executes a storage input/output (I/O) stack having a redundant array of independent disks (RAID) layer that organizes the storage devices within the storage array as a plurality of RAID groups. Configuration information is stored as a cluster database. The configuration information identifies the RAID groups associated with the storage devices. Each RAID group is associated with a plurality of segments and each segment has a different RAID configuration.

    Abstract translation: 在一个实施例中，集群的节点耦合到存储设备的存储阵列。 节点执行具有独立磁盘（RAID）层的冗余阵列的存储输入/输出（I / O）堆栈，其将存储阵列内的存储设备组织为多个RAID组。 配置信息存储为集群数据库。 配置信息标识与存储设备关联的RAID组。 每个RAID组与多个段相关联，并且每个段具有不同的RAID配置。

    DATA STORAGE WITHIN HYBRID STORAGE AGGREGATE
    10.
    发明申请
    DATA STORAGE WITHIN HYBRID STORAGE AGGREGATE 有权
    混合储存中的数据存储

    公开(公告)号：US20150227465A1

    公开(公告)日：2015-08-13

    申请号：US14695667

    申请日：2015-04-24

    Applicant: NetApp Inc.

    Inventor： Rajesh Sundaram ,  Douglas Paul Doucette ,  David Grunwald ,  Jeffrey S. Kimmel ,  Ashish Prakash

    IPC: G06F12/08 ,  G06F3/06

    CPC classification number: G06F12/0866 ,  G06F3/0611 ,  G06F3/065 ,  G06F3/0656 ,  G06F3/068 ,  G06F3/0685 ,  G06F12/0802 ,  G06F2003/0691 ,  G06F2003/0692 ,  G06F2212/1024 ,  G06F2212/217 ,  G06F2212/222 ,  G06F2212/281

    Abstract: Among other things, one or more techniques and/or systems are provided for storing data within a hybrid storage aggregate comprising a lower-latency storage tier and a higher-latency storage tier. In particular, frequently accessed data, randomly accessed data, and/or short lived data may be stored (e.g., read caching and/or write caching) within the lower-latency storage tier. Infrequently accessed data and/or sequentially accessed data may be stored within the higher-latency storage tier. Because the hybrid storage aggregate may comprise a single logical container derived from the higher-latency storage tier and the lower-latency storage tier, additional storage and/or file system functionality may be implemented across the storage tiers. For example, deduplication functionality, caching functionality, backup/restore functionality, and/or other functionality may be provided through a single file system (or other type of arrangement) and/or a cache map implemented within the hybrid storage aggregate.

    Abstract translation: 除其他之外，提供一个或多个技术和/或系统用于在包括较低延迟存储层和较高延迟存储层的混合存储聚合中存储数据。 特别地，经常访问的数据，随机访问的数据和/或短寿命数据可以在较低延迟存储层内被存储（例如，读取高速缓存和/或写入高速缓存）。 不经常访问的数据和/或顺序访问的数据可以存储在更高延迟的存储层中。 因为混合存储聚合可以包括从较高延迟存储层和较低延迟存储层导出的单个逻辑容器，所以可以跨存储层实现附加的存储和/或文件系统功能。 例如，重复数据删除功能，缓存功能，备份/恢复功能和/或其他功能可以通过单个文件系统（或其他类型的安排）和/或在混合存储聚合中实现的缓存映射来提供。

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