公开(公告)号：US10346194B2

公开(公告)日：2019-07-09

申请号：US15902510

申请日：2018-02-22

Applicant: NetApp Inc.

Inventor： Balaji Ramani ,  Kazunobu Nishime ,  Pankti Vinay Majmudar ,  Prachi Bapurao Deshmukh ,  Susan M. Coatney ,  Vijay Singh

IPC: G06F9/455 ,  G06F3/06 ,  G06F11/14

Abstract: One or more techniques and/or devices are provided for storage virtual machine relocation (e.g., ownership change) between storage clusters. For example, operational statistics of a first storage cluster and a second storage cluster may be evaluated to identify a set of load balancing metrics. Ownership of one or more storage aggregates and/or one or more storage virtual machines may be changed (e.g., permanently changed for load balancing purposes or temporarily changed for disaster recovery purposes) between the first storage cluster and the second storage cluster utilizing zero-copy ownership change operations based upon the set of load balancing metrics. For example, if the first storage cluster is experiencing a relatively heavier load of client I/O operations and the second storage cluster has available resources, ownership of a storage aggregate and a storage virtual machine may be switched from the first storage cluster to the second storage cluster for load balancing.

公开(公告)号：US09959064B2

公开(公告)日：2018-05-01

申请号：US15588726

申请日：2017-05-08

Applicant: NetApp Inc.

Inventor： Manoj V. Sundararajan ,  Ching-Yuk Paul Ngan ,  Yuedong Mu ,  Susan M. Coatney

IPC: G06F3/06

CPC classification number: G06F3/0619 ,  G06F3/065 ,  G06F3/067

Abstract: A primary write request that is to modify a primary portion of primary data stored in a primary storage node is received. The primary write request is to be replicated to create a current secondary write request. The current secondary write request is to modify a current secondary portion of secondary data that is stored in a secondary storage node. A current data range of the current secondary portion is determined. A determination is made of whether a previous secondary write request is in process of modifying a previous data range that at least partially overlaps with a current data range of the current secondary portion. Execution of the primary write request is suspended, until the previous secondary write request has completed updating the secondary storage node.

公开(公告)号：US09848043B2

公开(公告)日：2017-12-19

申请号：US15431063

申请日：2017-02-13

Applicant: NetApp Inc.

Inventor： Jeffrey S. Kimmel ,  Susan M. Coatney ,  Yuedong Mu ,  Santosh Rao

IPC: H04L29/08 ,  G06F3/06 ,  G06F17/30

CPC classification number: H04L67/1095 ,  G06F3/0619 ,  G06F3/065 ,  G06F3/067 ,  G06F17/30215 ,  H04L67/1097

Abstract: Data consistency and availability can be provided at the granularity of logical storage objects in storage solutions that use storage virtualization in clustered storage environments. To ensure consistency of data across different storage elements, synchronization is performed across the different storage elements. Changes to data are synchronized across storage elements in different clusters by propagating the changes from a primary logical storage object to a secondary logical storage object. To satisfy the strictest RPOs while maintaining performance, change requests are intercepted prior to being sent to a filesystem that hosts the primary logical storage object and propagated to a different managing storage element associated with the secondary logical storage object.

公开(公告)号：US20170242603A1

公开(公告)日：2017-08-24

申请号：US15588726

申请日：2017-05-08

Applicant: NetApp Inc.

Inventor： Manoj V. Sundararajan ,  Ching-Yuk Paul Ngan ,  Yuedong Mu ,  Susan M. Coatney

IPC: G06F3/06

CPC classification number: G06F3/0619 ,  G06F3/065 ,  G06F3/067

Abstract: A primary write request that is to modify a primary portion of primary data stored in a primary storage node is received. The primary write request is to be replicated to create a current secondary write request. The current secondary write request is to modify a current secondary portion of secondary data that is stored in a secondary storage node. A current data range of the current secondary portion is determined. A determination is made of whether a previous secondary write request is in process of modifying a previous data range that at least partially overlaps with a current data range of the current secondary portion. Execution of the primary write request is suspended, until the previous secondary write request has completed updating the secondary storage node.

公开(公告)号：US20170155716A1

公开(公告)日：2017-06-01

申请号：US15431063

申请日：2017-02-13

Applicant: NetApp Inc.

Inventor： Jeffrey S. Kimmel ,  Susan M. Coatney ,  Yuedong Mu ,  Santosh Rao

IPC: H04L29/08 ,  G06F3/06

CPC classification number: H04L67/1095 ,  G06F3/0619 ,  G06F3/065 ,  G06F3/067 ,  G06F17/30215 ,  H04L67/1097

Abstract: Data consistency and availability can be provided at the granularity of logical storage objects in storage solutions that use storage virtualization in clustered storage environments. To ensure consistency of data across different storage elements, synchronization is performed across the different storage elements. Changes to data are synchronized across storage elements in different clusters by propagating the changes from a primary logical storage object to a secondary logical storage object. To satisfy the strictest RPOs while maintaining performance, change requests are intercepted prior to being sent to a filesystem that hosts the primary logical storage object and propagated to a different managing storage element associated with the secondary logical storage object.

公开(公告)号：US20160140003A1

公开(公告)日：2016-05-19

申请号：US14541119

申请日：2014-11-13

Applicant: NetApp, Inc.

Inventor： Amit V. Panara ,  Chaitanya V. Patel ,  Hrishikesh Keremane ,  Pankti Vinay Majmudar ,  Santhosh Unnikrishnan ,  Sravan Kumar Elpula ,  Susan M. Coatney

IPC: G06F11/20

CPC classification number: G06F11/2092 ,  G06F3/0617 ,  G06F3/0629 ,  G06F3/0632 ,  G06F3/0653 ,  G06F3/067 ,  G06F11/2017 ,  G06F11/2071 ,  G06F11/2097

Abstract: During a storage redundancy giveback from a first node to a second node following a storage redundancy takeover from the second node by the first node, the second node is initialized in part by receiving a node identification indicator from the second node. The node identification indicator is included in a node advertisement message sent by the second node during a giveback wait phase of the storage redundancy giveback. The node identification indicator includes an intra-cluster node connectivity identifier that is used by the first node to determine whether the second node is an intra-cluster takeover partner. In response to determining that the second node is an intra-cluster takeover partner, the first node completes the giveback of storage resources to the second node.

Abstract translation: 在从第一节点从第二节点接收存储冗余之后，从第一节点到第二节点的存储冗余中，第二节点通过从第二节点接收节点识别指示符而被初始化。 节点识别指示符包括在由存储冗余回授的回馈等待阶段由第二节点发送的节点通告消息中。 节点识别指示符包括簇内节点连接性标识符，第一节点使用该标识符来确定第二节点是否是集群内收购伙伴。 响应于确定第二节点是群内接管伙伴，第一节点完成对第二节点的存储资源的回馈。

公开(公告)号：US11422908B2

公开(公告)日：2022-08-23

申请号：US16353120

申请日：2019-03-14

Applicant: NetApp Inc.

Inventor： Amit V. Panara ,  Chaitanya V. Patel ,  Hrishikesh Keremane ,  Pankti Vinay Majmudar ,  Santhosh Unnikrishnan ,  Sravan Kumar Elpula ,  Susan M. Coatney

IPC: G06F11/00 ,  G06F11/20 ,  G06F3/06

Abstract: During a storage redundancy giveback from a first node to a second node following a storage redundancy takeover from the second node by the first node, the second node is initialized in part by receiving a node identification indicator from the second node. The node identification indicator is included in a node advertisement message sent by the second node during a giveback wait phase of the storage redundancy giveback. The node identification indicator includes an intra-cluster node connectivity identifier that is used by the first node to determine whether the second node is an intra-cluster takeover partner. In response to determining that the second node is an intra-cluster takeover partner, the first node completes the giveback of storage resources to the second node.

公开(公告)号：US20180217771A1

公开(公告)日：2018-08-02

申请号：US15933556

申请日：2018-03-23

Applicant: NetApp Inc.

Inventor： Manoj V. Sundararajan ,  Ching-Yuk Paul Ngan ,  Yuedong Mu ,  Susan M. Coatney

IPC: G06F3/06

CPC classification number: G06F3/0619 ,  G06F3/065 ,  G06F3/067

Abstract: A primary write request that is to modify a primary portion of primary data stored in a primary storage node is received. The primary write request is to be replicated to create a current secondary write request. The current secondary write request is to modify a current secondary portion of secondary data that is stored in a secondary storage node. A current data range of the current secondary portion is determined. A determination is made of whether a previous secondary write request is in process of modifying a previous data range that at least partially overlaps with a current data range of the current secondary portion. Execution of the primary write request is suspended, until the previous secondary write request has completed updating the secondary storage node.

公开(公告)号：US09571575B2

公开(公告)日：2017-02-14

申请号：US14473621

申请日：2014-08-29

Applicant: NetApp, Inc.

Inventor： Jeffrey S. Kimmel ,  Susan M. Coatney ,  Yuedong Mu ,  Santosh Rao

IPC: G06F15/16 ,  H04L29/08 ,  G06F17/30

CPC classification number: H04L67/1095 ,  G06F3/0619 ,  G06F3/065 ,  G06F3/067 ,  G06F17/30215 ,  H04L67/1097

Abstract: Data consistency and availability can be provided at the granularity of logical storage objects in storage solutions that use storage virtualization in clustered storage environments. To ensure consistency of data across different storage elements, synchronization is performed across the different storage elements. Changes to data are synchronized across storage elements in different clusters by propagating the changes from a primary logical storage object to a secondary logical storage object. To satisfy the strictest RPOs while maintaining performance, change requests are intercepted prior to being sent to a filesystem that hosts the primary logical storage object and propagated to a different managing storage element associated with the secondary logical storage object.

Abstract translation: 可以在集群存储环境中使用存储虚拟化的存储解决方案中的逻辑存储对象的粒度提供数据一致性和可用性。 为了确保不同存储元件之间的数据的一致性，跨不同存储元件执行同步。 通过将更改从主逻辑存储对象传播到辅助逻辑存储对象，对数据的更改在不同群集中的存储元素之间进行同步。 为了在维护性能的同时满足最严格的RPO，在发送到托管主逻辑存储对象的文件系统之前，更改请求将被拦截，并传播到与辅助逻辑存储对象关联的其他管理存储元素。

公开(公告)号：US20160012117A1

公开(公告)日：2016-01-14

申请号：US14861699

申请日：2015-09-22

Applicant: NetApp, Inc.

Inventor： Poonam Dhavale ,  Susan M. Coatney ,  Steven S. Watanabe

IPC: G06F17/30

CPC classification number: G06F17/30575 ,  G06F3/0647 ,  G06F7/00 ,  G06F11/2005 ,  G06F11/2033 ,  G06F11/2046 ,  G06F11/2092 ,  G06F17/30 ,  G06F17/30067 ,  G06F17/30079 ,  G06F17/30091 ,  G06F17/30194 ,  G06F17/30203 ,  G06F17/30221 ,  G06F17/30607 ,  G06F17/30864

Abstract: A storage object is migrated between nodes by a source node automatically verifying that another node is configured to service the storage object and changing ownership of the storage object based on the verifying. A cluster manager for the clustered storage system receives a request and provides the request to the source which owns the storage object. The source verifies that the destination is configured according to a predetermined configuration for servicing the storage object. Based on the verifying, the source offlines the storage object and updates ownership information of the storage object, thereafter allowing the destination to online the storage object. The cluster manager further provides the updated ownership information to all the nodes in the cluster, so an access request intended for the storage object may be received by any node and forwarded to the destination using the updated ownership information to effect a transparent migration.

Abstract translation: 存储对象在节点之间由源节点进行迁移，自动验证另一个节点被配置为为存储对象提供服务，并根据验证更改存储对象的所有权。 集群存储系统的集群管理器接收请求，并向拥有该存储对象的源提供请求。 源验证根据用于维护存储对象的预定配置来配置目的地。 基于验证，源会关闭存储对象并更新存储对象的所有权信息，然后允许目的地联机存储对象。 集群管理器还向群集中的所有节点提供更新的所有权信息，因此可以由任何节点接收用于存储对象的访问请求，并使用更新的所有权信息将其转发到目的地以实现透明迁移。