公开(公告)号：US20180150367A1

公开(公告)日：2018-05-31

申请号：US15820940

申请日：2017-11-22

Applicant: NetApp Inc.

Inventor： Balaji Ramani ,  Harsha Sridhara ,  Rakshit Kamawat

IPC: G06F11/20

CPC classification number: G06F11/2069 ,  G06F3/0619 ,  G06F3/0647 ,  G06F3/065 ,  G06F3/0683 ,  G06F11/1456 ,  G06F11/2071 ,  G06F11/2094 ,  G06F21/00 ,  G06F21/53 ,  G06F21/57 ,  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：US20170109184A1

公开(公告)日：2017-04-20

申请号：US14883838

申请日：2015-10-15

Applicant: NetApp Inc.

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

IPC: G06F9/455 ,  G06F3/06

CPC classification number: G06F9/45558 ,  G06F3/0619 ,  G06F3/0647 ,  G06F3/065 ,  G06F3/067 ,  G06F11/14 ,  G06F2009/4557 ,  G06F2009/45575 ,  G06F2009/45583

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：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。