公开(公告)号：US20200089546A1

公开(公告)日：2020-03-19

申请号：US16690860

申请日：2019-11-21

Applicant: NetApp Inc.

Inventor： Rakshit Karnawat ,  Veena TS ,  Ganesh Marappa

IPC: G06F9/50 ,  G06F11/14 ,  G06F11/20

Abstract: Techniques for load balancing and fault tolerant service are described. An apparatus may comprise load balancing and fault tolerant component operative to execute a load balancing and fault tolerant service in a distributed data system. The load balancing and fault tolerant service distributes a load of a task to a first node in a cluster of nodes using a routing table. The load balancing and fault tolerant service stores information to indicate the first node from the cluster of nodes is assigned to perform the task. The load balancing and fault tolerant service detects a failure condition for the first node. The load balancing and fault tolerant service moves the task to a second node from the cluster of nodes to perform the task for the first node upon occurrence of the failure condition.

公开(公告)号：US20140359058A1

公开(公告)日：2014-12-04

申请号：US13905920

申请日：2013-05-30

Applicant: NETAPP, INC.

Inventor： Rakshit Karnawat ,  Harsha Sridhara ,  Balaji Ramani

IPC: H04L29/08

CPC classification number: H04L67/1097 ,  G06F3/0611 ,  G06F3/0617 ,  G06F3/0647 ,  G06F3/067 ,  G06F17/30283 ,  H04L47/10 ,  H04L47/125 ,  H04L47/13 ,  H04L47/225 ,  H04L47/25 ,  H04L47/263

Abstract: Method and system for a non-disruptive migration of a source virtual storage system from a source cluster to a destination cluster is provided. The method includes monitoring a current transfer rate for migrating information from the source cluster to the destination cluster during a migration operation; iteratively reducing a rate at which I/O requests are processed until a transfer rate for transferring the information from the source cluster to the destination cluster within the duration is reached; and entering a cutover phase for the migration operation when the virtual storage system presented by the source cluster is taken offline for the duration and after the information is migrated to the destination cluster, the virtual storage system is presented by the destination cluster.

Abstract translation: 提供了源虚拟存储系统从源集群到目标集群的非中断迁移的方法和系统。 该方法包括监视在迁移操作期间将信息从源集群迁移到目的地集群的当前传输速率; 迭代地减少处理I / O请求的速率，直到达到在持续时间内将信息从源集群传送到目标集群的传输速率; 并且当由源集群呈现的虚拟存储系统在持续时间内脱机并且在将信息迁移到目的地集群之后，进入迁移操作的切换阶段，则由目的地集群呈现虚拟存储系统。

公开(公告)号：US10521276B2

公开(公告)日：2019-12-31

申请号：US15727713

申请日：2017-10-09

Applicant: NetApp Inc.

Inventor： Rakshit Karnawat ,  Veena TS ,  Ganesh Marappa

IPC: G06F11/07 ,  G06F9/50 ,  G06F11/14 ,  G06F11/20 ,  G06F11/34

Abstract: Techniques for load balancing and fault tolerant service are described. An apparatus may comprise load balancing and fault tolerant component operative to execute a load balancing and fault tolerant service in a distributed data system. The load balancing and fault tolerant service distributes a load of a task to a first node in a cluster of nodes using a routing table. The load balancing and fault tolerant service stores information to indicate the first node from the cluster of nodes is assigned to perform the task. The load balancing and fault tolerant service detects a failure condition for the first node. The load balancing and fault tolerant service moves the task to a second node from the cluster of nodes to perform the task for the first node upon occurrence of the failure condition.

公开(公告)号：US20220276941A1

公开(公告)日：2022-09-01

申请号：US17744875

申请日：2022-05-16

Applicant: NetApp Inc.

Inventor： Balaji Ramani ,  Harsha Sridhara ,  Rakshit Karnawat

IPC: G06F11/20 ,  G06F3/06 ,  G06F21/00 ,  G06F21/53 ,  G06F21/57

Abstract: One or more techniques and/or systems are provided for migrating a trust relationship. For example, a first storage cluster and a second storage cluster have a disaster recovery relationship where the second storage cluster provides failover client access to replicated data, replicated from the first storage cluster to the second storage cluster, in the event the first storage cluster fails. The first storage cluster may have a trust relationship with a third storage cluster, such that data is mirrored from a volume of the first storage cluster into a mirrored volume of the third storage cluster based upon the trust relationship. In the event the first storage cluster fails over to the second storage cluster due to a disaster at the first storage cluster, the trust relationship is migrated to be between the second storage cluster and the third storage cluster for non-disruptive mirroring of data to the mirrored volume.

公开(公告)号：US20160105313A1

公开(公告)日：2016-04-14

申请号：US14510300

申请日：2014-10-09

Applicant: NetApp, Inc.

Inventor： Sudhakar Jha ,  Reshmi G. ,  Ganesh Marappa ,  Vineeth Kumar T. ,  Balaji Ramani ,  Veena TS ,  Rakshit Karnawat ,  Prasad V. Srinivas ,  Harsha Handral Sridhara ,  Anoop Chakkalakkal Vijayan

IPC: H04L12/24 ,  G06F11/14 ,  H04L29/08

CPC classification number: H04L41/0816 ,  G06F11/1451 ,  G06F11/2069 ,  G06F11/2071 ,  G06F11/2082 ,  G06F2201/84 ,  H04L67/1095 ,  H04L67/1097

Abstract: A method includes receiving a change in a primary configuration of a primary storage node while the primary storage node is operational, wherein primary data stored in the primary storage node is to be backed up as backup data in a backup storage node. The method includes locating at least one identifier in the change that identifies the primary storage node. The method includes replacing the at least one identifier in the change that identifies the primary storage node with an identification of the backup storage node to create an updated configuration change. The method includes updating a backup configuration of the backup storage node based on the updated configuration change.

Abstract translation: 一种方法包括在主存储节点可操作时接收主存储节点的主配置的改变，其中存储在主存储节点中的主数据将作为备份存储节点中的备份数据进行备份。 该方法包括在识别主存储节点的改变中定位至少一个标识符。 该方法包括用识别主存储节点的变化中的至少一个标识符替换备份存储节点的标识，以创建更新的配置更改。 该方法包括基于更新的配置更改来更新备份存储节点的备份配置。

公开(公告)号：US11983083B2

公开(公告)日：2024-05-14

申请号：US17744875

申请日：2022-05-16

Applicant: NetApp Inc.

Inventor： Balaji Ramani ,  Harsha Sridhara ,  Rakshit Karnawat

IPC: G06F11/00 ,  G06F3/06 ,  G06F11/20 ,  G06F21/00 ,  G06F21/53 ,  G06F21/57 ,  G06F11/14

CPC classification number: G06F11/2069 ,  G06F3/0619 ,  G06F3/0647 ,  G06F3/065 ,  G06F3/0683 ,  G06F11/2071 ,  G06F11/2094 ,  G06F21/00 ,  G06F21/53 ,  G06F21/57 ,  G06F11/1456 ,  G06F2201/805

Abstract: One or more techniques and/or systems are provided for migrating a trust relationship. For example, a first storage cluster and a second storage cluster have a disaster recovery relationship where the second storage cluster provides failover client access to replicated data, replicated from the first storage cluster to the second storage cluster, in the event the first storage cluster fails. The first storage cluster may have a trust relationship with a third storage cluster, such that data is mirrored from a volume of the first storage cluster into a mirrored volume of the third storage cluster based upon the trust relationship. In the event the first storage cluster fails over to the second storage cluster due to a disaster at the first storage cluster, the trust relationship is migrated to be between the second storage cluster and the third storage cluster for non-disruptive mirroring of data to the mirrored volume.

公开(公告)号：US11681566B2

公开(公告)日：2023-06-20

申请号：US17391122

申请日：2021-08-02

Applicant: NetApp Inc.

Inventor： Rakshit Karnawat ,  Veena Ts ,  Ganesh Marappa

IPC: G06F11/07 ,  G06F9/50 ,  G06F11/14 ,  G06F11/20 ,  G06F11/34

CPC classification number: G06F9/5088 ,  G06F11/1425 ,  G06F11/1484 ,  G06F11/2035 ,  G06F11/203 ,  G06F11/3433 ,  G06F2201/805

Abstract: Techniques for load balancing and fault tolerant service are described. An apparatus may comprise load balancing and fault tolerant component operative to execute a load balancing and fault tolerant service in a distributed data system. The load balancing and fault tolerant service distributes a load of a task to a first node in a cluster of nodes using a routing table. The load balancing and fault tolerant service stores information to indicate the first node from the cluster of nodes is assigned to perform the task. The load balancing and fault tolerant service detects a failure condition for the first node. The load balancing and fault tolerant service moves the task to a second node from the cluster of nodes to perform the task for the first node upon occurrence of the failure condition.

公开(公告)号：US11334454B2

公开(公告)日：2022-05-17

申请号：US16806031

申请日：2020-03-02

Applicant: NetApp Inc.

Inventor： Balaji Ramani ,  Harsha Sridhara ,  Rakshit Karnawat

IPC: G06F11/00 ,  G06F11/20 ,  G06F3/06 ,  G06F21/00 ,  G06F21/53 ,  G06F21/57 ,  G06F11/14

Abstract: One or more techniques and/or systems are provided for migrating a trust relationship. For example, a first storage cluster and a second storage cluster have a disaster recovery relationship where the second storage cluster provides failover client access to replicated data, replicated from the first storage cluster to the second storage cluster, in the event the first storage cluster fails. The first storage cluster may have a trust relationship with a third storage cluster, such that data is mirrored from a volume of the first storage cluster into a mirrored volume of the third storage cluster based upon the trust relationship. In the event the first storage cluster fails over to the second storage cluster due to a disaster at the first storage cluster, the trust relationship is migrated to be between the second storage cluster and the third storage cluster for non-disruptive mirroring of data to the mirrored volume.

公开(公告)号：US10187256B2

公开(公告)日：2019-01-22

申请号：US14510300

申请日：2014-10-09

Applicant: NetApp, Inc.

Inventor： Sudhakar Jha ,  Reshmi G ,  Ganesh Marappa ,  Vineeth Kumar T ,  Balaji Ramani ,  Veena T S ,  Rakshit Karnawat ,  Prasad V. Srinivas ,  Harsha Handral Sridhara ,  Anoop Chakkalakkal Vijayan

IPC: G06F15/16 ,  H04L12/24 ,  G06F11/14 ,  H04L29/08 ,  G06F11/20

Abstract: A method includes receiving a change in a primary configuration of a primary storage node while the primary storage node is operational, wherein primary data stored in the primary storage node is to be backed up as backup data in a backup storage node. The method includes locating at least one identifier in the change that identifies the primary storage node. The method includes replacing the at least one identifier in the change that identifies the primary storage node with an identification of the backup storage node to create an updated configuration change. The method includes updating a backup configuration of the backup storage node based on the updated configuration change.

公开(公告)号：US09083724B2

公开(公告)日：2015-07-14

申请号：US13905920

申请日：2013-05-30

Applicant: NETAPP, INC.

Inventor： Rakshit Karnawat ,  Harsha Sridhara ,  Balaji Ramani

IPC: G06F15/16 ,  H04L29/08 ,  H04L12/801 ,  H04L12/803 ,  H04L12/825 ,  H04L12/815 ,  G06F17/30 ,  G06F3/06

CPC classification number: H04L67/1097 ,  G06F3/0611 ,  G06F3/0617 ,  G06F3/0647 ,  G06F3/067 ,  G06F17/30283 ,  H04L47/10 ,  H04L47/125 ,  H04L47/13 ,  H04L47/225 ,  H04L47/25 ,  H04L47/263

Abstract: Method and system for a non-disruptive migration of a source virtual storage system from a source cluster to a destination cluster is provided. The method includes monitoring a current transfer rate for migrating information from the source cluster to the destination cluster during a migration operation; iteratively reducing a rate at which I/O requests are processed until a transfer rate for transferring the information from the source cluster to the destination cluster within the duration is reached; and entering a cutover phase for the migration operation when the virtual storage system presented by the source cluster is taken offline for the duration and after the information is migrated to the destination cluster, the virtual storage system is presented by the destination cluster.

Abstract translation: 提供了源虚拟存储系统从源集群到目标集群的非中断迁移的方法和系统。 该方法包括监视在迁移操作期间将信息从源集群迁移到目的地集群的当前传输速率; 迭代地减少处理I / O请求的速率，直到达到在持续时间内将信息从源集群传送到目标集群的传输速率; 并且当由源集群呈现的虚拟存储系统在持续时间内脱机并且在将信息迁移到目的地集群之后，进入迁移操作的切换阶段，则由目的地集群呈现虚拟存储系统。