公开(公告)号：US20140068184A1

公开(公告)日：2014-03-06

申请号：US14020042

申请日：2013-09-06

Applicant: NetApp, Inc.

Inventor： John K. Edwards ,  Steven R. Kleiman

IPC: G06F3/06

CPC classification number: G06F3/0689 ,  G06F3/0607 ,  G06F3/0614 ,  G06F3/0632 ,  G06F3/0646 ,  G06F3/067 ,  G06F3/0685 ,  G06F2212/205

Abstract: A storage system provides highly flexible data layouts that can be tailored to various different applications and use cases. The system defines several types of data containers, including “regions”, “logical extents” and “slabs”. Each region includes one or more logical extents. Allocated to each logical extent is at least part of one or more slabs allocated to the region that includes the extent. Each slab is a set of blocks of storage from one or more physical storage devices. The slabs can be defined from a heterogeneous pool of physical storage. The system also maintains multiple “volumes” above the region layer. Each volume includes one or more logical extents from one or more regions. A foreign LUN can be assimilated into the system by defining slabs as separate portions of the foreign LUN. Layouts of the extents within the regions are not visible to any of the volumes.

Abstract translation: 存储系统提供高度灵活的数据布局，可以针对各种不同的应用程序和用例进行定制。 系统定义了几种类型的数据容器，包括“区域”，“逻辑盘区”和“板”。 每个区域包括一个或多个逻辑盘区。 分配到每个逻辑范围的至少一部分是分配给包含该范围的区域的一个或多个slab。 每个平板是来自一个或多个物理存储设备的一组存储块。 板可以从物理存储的异构池定义。 该系统还在区域层之上维护多个“体积”。 每个卷包括来自一个或多个区域的一个或多个逻辑盘区。 外部LUN可以通过将slab定义为外部LUN的单独部分而被同化到系统中。 区域内的区域的布局对于任何卷都不可见。

公开(公告)号：US20140019704A1

公开(公告)日：2014-01-16

申请号：US14023176

申请日：2013-09-10

Applicant: NetApp, Inc.

Inventor： John K. Edwards

IPC: G06F3/06

CPC classification number: G06F17/30233 ,  G06F3/0604 ,  G06F3/061 ,  G06F3/0631 ,  G06F3/064 ,  G06F3/067 ,  G06F3/0689 ,  G06F17/30091 ,  Y10S707/99943 ,  Y10S707/99952 ,  Y10S707/99953 ,  Y10S707/99956

Abstract: A plurality of storage devices is organized into a physical volume called an aggregate, and the aggregate is organized into a global storage space, and a data block is resident on one of the storage devices of the plurality of storage devices. A plurality of virtual volumes is organized within the aggregate and the data block is allocated to a virtual volume. A physical volume block number (pvbn) is selected for the data block from a pvbn space of the aggregate, and virtual volume block number (vvbn) for the data block is selected from a vvbn space of the selected vvol. Both the selected pvbn and the selected vvbn are inserted in a parent block as block pointers to point to the allocated data block on the storage device.

Abstract translation: 将多个存储设备组织成称为聚合的物理卷，并且聚合被组织成全局存储空间，并且数据块驻留在多个存储设备中的一个存储设备上。 在聚合内组织多个虚拟卷，并将数据块分配给虚拟卷。 从聚合的pvbn空间为数据块选择物理卷块号（pvbn），并且从所选vvol的vvbn空间中选择数据块的虚拟卷块号（vvbn）。 所选择的pvbn和所选的vvbn都作为块指针插入到父块中，以指向存储设备上分配的数据块。

公开(公告)号：US20190155793A1

公开(公告)日：2019-05-23

申请号：US16254921

申请日：2019-01-23

Applicant: NetApp Inc.

Inventor： Blake Lewis ,  John K. Edwards ,  Vijay Deshmukh ,  Kapil Kumar ,  Rajesh Desai

IPC: G06F16/182 ,  G06F3/06

Abstract: A technique to name data is disclosed to allow preservation of storage efficiency over a link between a source and a destination in a replication relationship as well as in storage at the destination. The technique allows the source to send named data to the destination once and refer to it by name multiple times in the future, without having to resend the data. The technique also allows the transmission of data extents to be decoupled from the logical containers that refer to the data extents. Additionally, the technique allows a replication system to accommodate different extent sizes between replication source and destination while preserving storage efficiency.

公开(公告)号：US09430493B2

公开(公告)日：2016-08-30

申请号：US14522951

申请日：2014-10-24

Applicant: NetApp, Inc.

Inventor： John K. Edwards

IPC: G06F17/30 ,  G06F3/06

CPC classification number: G06F17/30233 ,  G06F3/0604 ,  G06F3/061 ,  G06F3/0631 ,  G06F3/064 ,  G06F3/067 ,  G06F3/0689 ,  G06F17/30091 ,  Y10S707/99943 ,  Y10S707/99952 ,  Y10S707/99953 ,  Y10S707/99956

Abstract: A write allocation technique extends a conventional write allocation procedure employed by a write anywhere file system of a storage system. A write allocator of the file system implements the extended write allocation technique in response to an event in the file system. The extended write allocation technique efficiently allocates blocks, and frees blocks, to and from a virtual volume (vvol) of an aggregate. The aggregate is a physical volume comprising one or more groups of disks, such as RAID groups, underlying one or more vvols of the storage system. The aggregate has its own physical volume block number (pvbn) space and maintains metadata, such as block allocation structures, within that pvbn space. Each vvol also has its own virtual volume block number (vvbn) space and maintains metadata, such as block allocation structures, within that vvbn space. The inventive technique extends input/output efficiencies of the conventional write allocation procedure to comport with an extended file system layout of the storage system.

Abstract translation: 写分配技术扩展了存储系统的写任意文件系统所采用的常规写分配过程。 文件系统的写分配器响应于文件系统中的事件实现扩展写分配技术。 扩展写分配技术有效地分配块，并将块从聚合体的虚拟卷（vvol）中分离出来。 聚合是包含一组或多组磁盘的物理卷，例如RAID组，存储系统的一个或多个vvol。 聚合具有自己的物理卷块数（pvbn）空间，并在该pvbn空间内维护诸如块分配结构之类的元数据。 每个vvol还具有自己的虚拟卷块号（vvbn）空间，并在该vvbn空间内维护诸如块分配结构的元数据。 本发明的技术扩展了常规写入分配过程的输入/输出效率，以与存储系统的扩展文件系统布局相匹配。

公开(公告)号：US08903830B2

公开(公告)日：2014-12-02

申请号：US14023176

申请日：2013-09-10

Applicant: NetApp, Inc.

Inventor： John K. Edwards

IPC: G06F17/30 ,  G06F3/06

CPC classification number: G06F17/30233 ,  G06F3/0604 ,  G06F3/061 ,  G06F3/0631 ,  G06F3/064 ,  G06F3/067 ,  G06F3/0689 ,  G06F17/30091 ,  Y10S707/99943 ,  Y10S707/99952 ,  Y10S707/99953 ,  Y10S707/99956

Abstract: A plurality of storage devices is organized into a physical volume called an aggregate, and the aggregate is organized into a global storage space, and a data block is resident on one of the storage devices of the plurality of storage devices. A plurality of virtual volumes is organized within the aggregate and the data block is allocated to a virtual volume. A physical volume block number (pvbn) is selected for the data block from a pvbn space of the aggregate, and virtual volume block number (vvbn) for the data block is selected from a vvbn space of the selected vvol. Both the selected pvbn and the selected vvbn are inserted in a parent block as block pointers to point to the allocated data block on the storage device.

Abstract translation: 将多个存储设备组织成称为聚合的物理卷，并且聚合被组织成全局存储空间，并且数据块驻留在多个存储设备中的一个存储设备上。 在聚合内组织多个虚拟卷，并将数据块分配给虚拟卷。 从聚合的pvbn空间为数据块选择物理卷块号（pvbn），并且从所选vvol的vvbn空间中选择数据块的虚拟卷块号（vvbn）。 所选择的pvbn和所选的vvbn都作为块指针插入到父块中，以指向存储设备上分配的数据块。

公开(公告)号：US20140082281A1

公开(公告)日：2014-03-20

申请号：US14077812

申请日：2013-11-12

Applicant: NetApp, Inc.

Inventor： John K. Edwards ,  Blake H. Lewis ,  Robert M. English ,  Eric Hamilton ,  Peter F. Corbett

IPC: G06F3/06

CPC classification number: G06F3/0689 ,  G06F3/0619 ,  G06F3/0665 ,  G06F17/30233

Abstract: A file system layout apportions an underlying physical volume into one or more virtual volumes (vvols) of a storage system. The underlying physical volume is an aggregate comprising one or more groups of disks, such as RAID groups, of the storage system. The aggregate has its own physical volume block number (pvbn) space and maintains metadata, such as block allocation structures, within that pvbn space. Each vvol has its own virtual volume block number (vvbn) space and maintains metadata, such as block allocation structures, within that vvbn space. Notably, the block allocation structures of a vvol are sized to the vvol, and not to the underlying aggregate, to thereby allow operations that manage data served by the storage system (e.g., snapshot operations) to efficiently work over the vvols. The file system layout extends the file system layout of a conventional write anywhere file layout system implementation, yet maintains performance properties of the conventional implementation.

Abstract translation: 文件系统布局将底层物理卷分配到存储系统的一个或多个虚拟卷（vvols）中。 底层物理卷是包含存储系统的一组或多组磁盘（如RAID组）的聚合。 聚合具有自己的物理卷块数（pvbn）空间，并在该pvbn空间内维护诸如块分配结构之类的元数据。 每个vvol具有自己的虚拟卷块号（vvbn）空间，并在该vvbn空间内维护诸如块分配结构的元数据。 值得注意的是，vvol的块分配结构的大小适合于vvol，而不是基础聚合，从而允许管理由存储系统服务的数据（例如，快照操作）的操作有效地在vvols上工作。 文件系统布局扩展了常规写入任何文件布局系统实现的文件系统布局，但是保持了传统实现的性能特性。

公开(公告)号：US11169972B2

公开(公告)日：2021-11-09

申请号：US16254921

申请日：2019-01-23

Applicant: NetApp Inc.

Inventor： Blake Lewis ,  John K. Edwards ,  Vijay Deshmukh ,  Kapil Kumar ,  Rajesh Desai

IPC: G06F16/182 ,  G06F3/06 ,  G06F11/20

Abstract: A technique to name data is disclosed to allow preservation of storage efficiency over a link between a source and a destination in a replication relationship as well as in storage at the destination. The technique allows the source to send named data to the destination once and refer to it by name multiple times in the future, without having to resend the data. The technique also allows the transmission of data extents to be decoupled from the logical containers that refer to the data extents. Additionally, the technique allows a replication system to accommodate different extent sizes between replication source and destination while preserving storage efficiency.

公开(公告)号：US09170883B2

公开(公告)日：2015-10-27

申请号：US14307372

申请日：2014-06-17

Applicant: NetApp, Inc.

Inventor： Yong Cho ,  Maya Palem ,  Vignesh Sukumar ,  John K. Edwards ,  David Grunwald ,  Andy Kahn

IPC: G06F17/30 ,  G06F11/10 ,  H04L29/08

CPC classification number: G06F11/1076 ,  G06F17/3007 ,  H04L67/1097

Abstract: A network storage server includes a tool for detecting and fixing errors while the network storage server remains online (available for servicing client requests), which includes enabling a user to approve or disapprove remedial changes before the changes are committed. The technique bypasses the usual consistency point process for new or modified data blocks representing potential remedial changes. At a consistency point, dirty data blocks representing the potential remedial changes are written to a change log file residing outside the volume. The modified data blocks are written in sequential order to logical blocks of the change log file. In response to a user input indicating that a potential change should be committed, the corresponding modified data blocks are read from the change log file in the order in which they were written to the change log file, and they are written to persistent storage in that order.

Abstract translation: 网络存储服务器包括用于在网络存储服务器保持联机（可用于服务客户端请求）的情况下检测和修复错误的工具，其中包括使用户在更改发生之前批准或不批准补救更改。 该技术绕过代表潜在补救变化的新的或修改的数据块的通常一致性点过程。 在一致性点上，将表示潜在补救措施更改的脏数据块写入驻留在卷外的更改日志文件。 经修改的数据块按顺序写入变更日志文件的逻辑块。 响应于指示应该提交潜在变化的用户输入，从更改日志文件中读取相应的修改后的数据块，并将它们写入到更改日志文件中，并将它们写入永久存储器 订购。

公开(公告)号：US09454332B2

公开(公告)日：2016-09-27

申请号：US14020042

申请日：2013-09-06

Applicant: NetApp, Inc.

Inventor： John K. Edwards ,  Steven R. Kleiman

IPC: G06F3/06

CPC classification number: G06F3/0689 ,  G06F3/0607 ,  G06F3/0614 ,  G06F3/0632 ,  G06F3/0646 ,  G06F3/067 ,  G06F3/0685 ,  G06F2212/205

Abstract: A storage system provides highly flexible data layouts that can be tailored to various different applications and use cases. The system defines several types of data containers, including “regions”, “logical extents” and “slabs”. Each region includes one or more logical extents. Allocated to each logical extent is at least part of one or more slabs allocated to the region that includes the extent. Each slab is a set of blocks of storage from one or more physical storage devices. The slabs can be defined from a heterogeneous pool of physical storage. The system also maintains multiple “volumes” above the region layer. Each volume includes one or more logical extents from one or more regions. A foreign LUN can be assimilated into the system by defining slabs as separate portions of the foreign LUN. Layouts of the extents within the regions are not visible to any of the volumes.

Abstract translation: 存储系统提供高度灵活的数据布局，可以针对各种不同的应用程序和用例进行定制。 系统定义了几种类型的数据容器，包括“区域”，“逻辑盘区”和“板”。 每个区域包括一个或多个逻辑盘区。 分配到每个逻辑范围的至少一部分是分配给包含该范围的区域的一个或多个slab。 每个平板是来自一个或多个物理存储设备的一组存储块。 板可以从物理存储的异构池定义。 该系统还在区域层之上维护多个“体积”。 每个卷包括来自一个或多个区域的一个或多个逻辑盘区。 外部LUN可以通过将slab定义为外部LUN的单独部分而被同化到系统中。 区域内的区域的布局对于任何卷都不可见。

公开(公告)号：US08990539B2

公开(公告)日：2015-03-24

申请号：US14077812

申请日：2013-11-12

Applicant: NetApp, Inc.

Inventor： John K. Edwards ,  Blake H. Lewis ,  Robert M. English ,  Eric Hamilton ,  Peter F. Corbett

IPC: G06F12/00 ,  G06F3/06 ,  G06F17/30

CPC classification number: G06F3/0689 ,  G06F3/0619 ,  G06F3/0665 ,  G06F17/30233

Abstract: A file system layout apportions an underlying physical volume into one or more virtual volumes (vvols) of a storage system. The underlying physical volume is an aggregate comprising one or more groups of disks, such as RAID groups, of the storage system. The aggregate has its own physical volume block number (pvbn) space and maintains metadata, such as block allocation structures, within that pvbn space. Each vvol has its own virtual volume block number (vvbn) space and maintains metadata, such as block allocation structures, within that vvbn space. Notably, the block allocation structures of a vvol are sized to the vvol, and not to the underlying aggregate, to thereby allow operations that manage data served by the storage system (e.g., snapshot operations) to efficiently work over the vvols. The file system layout extends the file system layout of a conventional write anywhere file layout system implementation, yet maintains performance properties of the conventional implementation.

Abstract translation: 文件系统布局将底层物理卷分配到存储系统的一个或多个虚拟卷（vvols）中。 底层物理卷是包含存储系统的一组或多组磁盘（如RAID组）的聚合。 聚合具有自己的物理卷块数（pvbn）空间，并在该pvbn空间内维护诸如块分配结构的元数据。 每个vvol具有自己的虚拟卷块号（vvbn）空间，并在该vvbn空间内维护诸如块分配结构的元数据。 值得注意的是，vvol的块分配结构的大小适合于vvol，而不是基础聚合，从而允许管理由存储系统服务的数据（例如，快照操作）的操作有效地在vvols上工作。 文件系统布局扩展了常规写入任何文件布局系统实现的文件系统布局，但是保持了传统实现的性能特性。