公开(公告)号：US11409708B2

公开(公告)日：2022-08-09

申请号：US16679545

申请日：2019-11-11

Applicant: NetApp Inc.

Inventor： Devang Kundanlal Shah ,  Dipankar Roy ,  Krishnaveni Budati ,  Kai Tan ,  Pranab Patnaik ,  Akhil Kaushik

IPC: G06F16/10 ,  G06F16/178 ,  G06F16/11 ,  G06F3/06

Abstract: One or more techniques and/or computing devices are provided for managing an arbitrary set of storage items using a granset. For example, a storage controller may host a plurality of storage items and/or logical unit numbers (LUNs). A subset of the storage items are grouped into a consistency group. A granset is created for tracking, managing, and/or providing access to the storage items within the consistency group. For example, the granset comprises application programming interfaces (APIs) and/or properties used to provide certain levels of access to the storage items (e.g., read access, write access, no access), redirect operations to access either data of an active file system or to a snapshot, fence certain operations (e.g., rename and delete operations), and/or other properties that apply to each storage item within the consistency group. Thus, the granset provides a persistent on-disk layout used to manage an arbitrary set of storage items.

公开(公告)号：US10862966B2

公开(公告)日：2020-12-08

申请号：US16188794

申请日：2018-11-13

Applicant: NetApp Inc.

Inventor： Santosh Ananth Rao ,  Geoffrey Stewart Brown ,  Srikumar Natarajan ,  Pranab Patnaik ,  Kai Tan ,  Peter Frank Corbett ,  Vivek Venkatesan

IPC: H04L29/08 ,  H04L12/26 ,  G06F13/22

Abstract: A storage area network (SAN)-attached storage system architecture is disclosed. The storage system provides strongly consistent distributed storage communication protocol semantics, such as SCSI target semantics. The system includes a mechanism for presenting a single distributed logical unit, comprising one or more logical sub-units, as a single logical unit of storage to a host system by associating each of the logical sub-units that make up the single distributed logical unit with a single host visible identifier that corresponds to the single distributed logical unit. The system further includes mechanisms to maintain consistent context information for each of the logical sub-units such that the logical sub-units are not visible to a host system as separate entities from the single distributed logical unit.

公开(公告)号：US20190324950A1

公开(公告)日：2019-10-24

申请号：US16456775

申请日：2019-06-28

Applicant: NetApp Inc.

Inventor： Rithin Kumar Shetty ,  Akhil Kaushik ,  Nagender Somavarapu ,  Yuedong Mu ,  Pranab Patnaik

IPC: G06F16/178 ,  G06F11/20 ,  H04L29/08 ,  G06F9/455 ,  G06F11/14 ,  G06F16/188

Abstract: One or more techniques and/or computing devices are provided for replicating virtual machine disk clones. For example, a first storage controller, hosting first storage, may have a synchronous replication relationship with a second storage controller hosting second storage. A virtual machine, within the first storage, may be specified as having synchronous replication protection. Accordingly, virtual machine disk clones of a virtual machine disk of the virtual machine may be replicated from the first storage to the second storage. For example, virtual machine disk clones may be synchronous replicated, replicated by a resync process invoked by a hypervisor agent, and/or stored and replicated from a clone backup directory.

公开(公告)号：US20190163382A1

公开(公告)日：2019-05-30

申请号：US16265032

申请日：2019-02-01

Applicant: NetApp Inc.

Inventor： Pranab Patnaik ,  Akhil Kaushik

IPC: G06F3/06 ,  G06F11/20

Abstract: One or more techniques and/or computing devices are provided for utilizing snapshots for data integrity validation and/or faster application recovery. For example, a first storage controller, hosting first storage, has a synchronous replication relationship with a second storage controller hosting second storage. A snapshot replication policy rule is defined to specify that a replication label is to be used for snapshot create requests, targeting the first storage, that are to be replicated to the second storage. A snapshot creation policy is created to issue snapshot create requests comprising the replication label. Thus a snapshot of the first storage and a replication snapshot of the second storage are created based upon a snapshot create request comprising the replication label. The snapshot and the replication snapshot may be compared for data integrity validation (e.g., determine whether the snapshots comprise the same data) and/or quickly recovering an application after a disaster.

公开(公告)号：US09256377B2

公开(公告)日：2016-02-09

申请号：US14289296

申请日：2014-05-28

Applicant: NetApp, Inc.

Inventor： Pranab Patnaik ,  Kai Tan ,  Vivek Venkatesan

IPC: G06F12/06 ,  G06F3/06 ,  H04L29/08

CPC classification number: G06F3/0631 ,  G06F3/0605 ,  G06F3/061 ,  G06F3/0665 ,  G06F3/067 ,  G06F3/0683 ,  G06F12/0646 ,  H04L67/1097

Abstract: Consistent distributed storage communication protocol semantics, such as SCSI target semantics, in a clustered storage system are disclosed. The system includes a mechanism for presenting a single distributed logical unit, comprising one or more logical sub-units, as a single logical unit of storage to a host system by associating each of the logical sub-units that make up the single distributed logical unit with a single host visible identifier that corresponds to the single distributed logical unit. The system further includes a mechanism to maintain consistent context information for each of the logical sub-units such that the logical sub-units are not visible to a host system as separate entities from the single distributed logical unit.

Abstract translation: 在集群存储系统中公开了一致的分布式存储通信协议语义，如SCSI目标语义。 该系统包括通过将构成单个分布式逻辑单元的每个逻辑子单元相关联来向主机系统提供包括一个或多个逻辑子单元作为单个逻辑单元的单个分布式逻辑单元的机制 具有对应于单个分布式逻辑单元的单个主机可见标识符。 该系统还包括一种用于为每个逻辑子单元维护一致的上下文信息的机制，使得逻辑子单元对于作为与单个分布式逻辑单元的分离实体不是主机系统可见的。

公开(公告)号：US20150033209A1

公开(公告)日：2015-01-29

申请号：US13951675

申请日：2013-07-26

Applicant: NETAPP, INC.

Inventor： Clifford Conklin ,  Kai Tan ,  Pranab Patnaik

IPC: G06F11/36

CPC classification number: G06F11/3636

Abstract: A method of invoking an action in response to encountering a tracepoint of an executing application including: encountering a tracepoint of an executing application at a processor of a computer node; receiving tracepoint data at a tracepoint interpretation utility, wherein the tracepoint data includes metadata that describes the state of the processor; analyzing the metadata associated with the tracepoint data to determine whether the metadata further includes action data that describe whether further action should be taken, wherein the action data describes an action other than buffering the tracepoint data; and when it is determined that the metadata includes action data, invoking one or more actions associated with the action data.

Abstract translation: 响应于遇到执行应用的跟踪点而调用动作的方法，包括：在计算机节点的处理器处遇到执行应用的跟踪点; 在跟踪点解释实用程序处接收跟踪点数据，其中所述跟踪点数据包括描述所述处理器的状态的元数据; 分析与所述跟踪点数据相关联的元数据，以确定所述元数据是否进一步包括描述是否应采取进一步动作的动作数据，其中所述动作数据描述除了缓存所述跟踪点数据之外的动作; 并且当确定元数据包括动作数据时，调用与动作数据相关联的一个或多个动作。

公开(公告)号：US08793432B2

公开(公告)日：2014-07-29

申请号：US14167220

申请日：2014-01-29

Applicant: NetApp, Inc.

Inventor： Pranab Patnaik ,  Kai Tan ,  Vivek Venkatesan

IPC: G06F12/08

CPC classification number: G06F3/0631 ,  G06F3/0605 ,  G06F3/061 ,  G06F3/0665 ,  G06F3/067 ,  G06F3/0683 ,  G06F12/0646 ,  H04L67/1097

Abstract: Consistent distributed storage communication protocol semantics, such as SCSI target semantics, in a SAN-attached clustered storage system are disclosed. The system includes a mechanism for presenting a single distributed logical unit, comprising one or more logical sub-units, as a single logical unit of storage to a host system by associating each of the logical sub-units that make up the single distributed logical unit with a single host visible identifier that corresponds to the single distributed logical unit. The system further includes a mechanism to maintain consistent context information for each of the logical sub-units such that the logical sub-units are not visible to a host system as separate entities from the single distributed logical unit.

Abstract translation: 公开了在SAN连接的集群存储系统中的一致的分布式存储通信协议语义，例如SCSI目标语义。 该系统包括通过将构成单个分布式逻辑单元的每个逻辑子单元相关联来向主机系统提供包括一个或多个逻辑子单元作为单个逻辑单元的单个分布式逻辑单元的机制 具有对应于单个分布式逻辑单元的单个主机可见标识符。 该系统还包括一种用于为每个逻辑子单元维护一致的上下文信息的机制，使得逻辑子单元对于作为与单个分布式逻辑单元的分离实体不是主机系统可见的。

公开(公告)号：US11818212B2

公开(公告)日：2023-11-14

申请号：US17083860

申请日：2020-10-29

Applicant: NetApp Inc.

Inventor： Santosh Ananth Rao ,  Geoffrey Stewart Brown ,  Srikumar Natarajan ,  Pranab Patnaik ,  Kai Tan ,  Peter Frank Corbett ,  Vivek Venkatesan

IPC: H04L67/1097 ,  H04L43/10 ,  G06F13/22

CPC classification number: H04L67/1097 ,  H04L43/10 ,  G06F13/22

Abstract: A storage area network (SAN)-attached storage system architecture is disclosed. The storage system provides strongly consistent distributed storage communication protocol semantics, such as SCSI target semantics. The system includes a mechanism for presenting a single distributed logical unit, comprising one or more logical sub-units, as a single logical unit of storage to a host system by associating each of the logical sub-units that make up the single distributed logical unit with a single host visible identifier that corresponds to the single distributed logical unit. The system further includes mechanisms to maintain consistent context information for each of the logical sub-units such that the logical sub-units are not visible to a host system as separate entities from the single distributed logical unit.

公开(公告)号：US20220382484A1

公开(公告)日：2022-12-01

申请号：US17882713

申请日：2022-08-08

Applicant: NetApp Inc.

Inventor： Devang Kundanlal Shah ,  Dipankar Roy ,  Krishnaveni Budati ,  Kai Tan ,  Pranab Patnaik ,  Akhil Kaushik

IPC: G06F3/06

Abstract: One or more techniques and/or computing devices are provided for managing an arbitrary set of storage items using a granset. For example, a storage controller may host a plurality of storage items and/or logical unit numbers (LUNs). A subset of the storage items are grouped into a consistency group. A granset is created for tracking, managing, and/or providing access to the storage items within the consistency group. For example, the granset comprises application programming interfaces (APIs) and/or properties used to provide certain levels of access to the storage items (e.g., read access, write access, no access), redirect operations to access either data of an active file system or to a snapshot, fence certain operations (e.g., rename and delete operations), and/or other properties that apply to each storage item within the consistency group. Thus, the granset provides a persistent on-disk layout used to manage an arbitrary set of storage items.

公开(公告)号：US20220171544A1

公开(公告)日：2022-06-02

申请号：US17548990

申请日：2021-12-13

Applicant: NetApp Inc.

Inventor： Pranab Patnaik ,  Akhil Kaushik

IPC: G06F3/06 ,  G06F11/20 ,  G06F11/16

Abstract: One or more techniques and/or computing devices are provided for utilizing snapshots for data integrity validation and/or faster application recovery. For example, a first storage controller, hosting first storage, has a synchronous replication relationship with a second storage controller hosting second storage. A snapshot replication policy rule is defined to specify that a replication label is to be used for snapshot create requests, targeting the first storage, that are to be replicated to the second storage. A snapshot creation policy is created to issue snapshot create requests comprising the replication label. Thus a snapshot of the first storage and a replication snapshot of the second storage are created based upon a snapshot create request comprising the replication label. The snapshot and the replication snapshot may be compared for data integrity validation (e.g., determine whether the snapshots comprise the same data) and/or quickly recovering an application after a disaster.