公开(公告)号：US20130318210A1

公开(公告)日：2013-11-28

申请号：US13873091

申请日：2013-04-29

Applicant: NETAPP, INC.

Inventor： Arthur F. Lent ,  Nagender Somavarapu ,  Mohammed Nazeem ,  Aditya Rajeev Kulkarni ,  Ravikanth Dronamraju

IPC: H04L29/06

CPC classification number: H04L67/42 ,  G06F3/0617 ,  G06F3/0647 ,  G06F3/067

Abstract: The techniques introduced here provide a storage server migration that is non-disruptive to client applications. The techniques described here allow the migration of data from a source storage server to a destination storage server without the need for planned downtime typically associated with storage server migration. Using the techniques described here, data migration operations are performed while client applications continue to run and access data from the source storage server. Once data migration operations are complete, all applications and clients are transitioned to the destination storage server without disruption to the client applications.

Abstract translation: 这里介绍的技术提供了一种不会破坏客户端应用程序的存储服务器迁移。 这里描述的技术允许将数据从源存储服务器迁移到目标存储服务器，而不需要通常与存储服务器迁移相关联的计划停机时间。 使用这里描述的技术，在客户端应用程序继续运行并从源存储服务器访问数据时执行数据迁移操作。 一旦数据迁移操作完成，所有应用程序和客户端都将转换到目标存储服务器，而不会中断客户端应用程序。

公开(公告)号：US09436409B2

公开(公告)日：2016-09-06

申请号：US14163022

申请日：2014-01-24

Applicant: NETAPP, INC.

Inventor： Aditya Rajeev Kulkarni ,  Nagender Somavarapu

IPC: G06F3/06

CPC classification number: G06F3/065 ,  G06F3/0604 ,  G06F3/0607 ,  G06F3/0647 ,  G06F3/0661 ,  G06F3/067 ,  G06F3/0683

Abstract: A method includes reading a superblock of a read-only replica of a source virtual volume in a source virtual storage partition associated with a source aggregate of a source storage system at the destination storage system, modifying the superblock of the read-only replica in a memory of the destination storage system, and associating the modified superblock with one or more virtual volume block number(s) configured to be previously associated with the superblock of the read-only replica of the source virtual volume without initiating a destination consistency point (DCP) at the destination storage system to render the destination virtual volume writable. The method also includes modifying a disk group label to reflect an association of the destination storage disk with the writable destination virtual volume, and initiating DCP to ensure that the modified superblock and the modified disk group label are flushed to the destination storage disk.

Abstract translation: 一种方法包括：在与目的地存储系统的源存储系统的源聚合相关联的源虚拟存储分区中读取源虚拟卷的只读副本的超级块，修改所述只读副本的超级块 目的地存储系统的存储器，以及将修改的超级块与配置为先前与源虚拟卷的只读副本的超级块相关联的一个或多个虚拟卷块号，而不启动目的地一致性点（DCP ），以使目标虚拟卷可写。 该方法还包括修改磁盘组标签以反映目标存储磁盘与可写目标虚拟卷的关联，并启动DCP以确保修改的超级块和修改的磁盘组标签被刷新到目标存储磁盘。

公开(公告)号：US20140143514A1

公开(公告)日：2014-05-22

申请号：US14163022

申请日：2014-01-24

Applicant: NETAPP, INC.

Inventor： Aditya Rajeev Kulkarni ,  Nagender Somavarapu, II

IPC: G06F3/06

CPC classification number: G06F3/065 ,  G06F3/0604 ,  G06F3/0607 ,  G06F3/0647 ,  G06F3/0661 ,  G06F3/067 ,  G06F3/0683

Abstract: A method includes reading a superblock of a read-only replica of a source virtual volume in a source virtual storage partition associated with a source aggregate of a source storage system at the destination storage system, modifying the superblock of the read-only replica in a memory of the destination storage system, and associating the modified superblock with one or more virtual volume block number(s) configured to be previously associated with the superblock of the read-only replica of the source virtual volume without initiating a destination consistency point (DCP) at the destination storage system to render the destination virtual volume writable. The method also includes modifying a disk group label to reflect an association of the destination storage disk with the writable destination virtual volume, and initiating DCP to ensure that the modified superblock and the modified disk group label are flushed to the destination storage disk.

Abstract translation: 一种方法包括：在与目的地存储系统的源存储系统的源聚合相关联的源虚拟存储分区中读取源虚拟卷的只读副本的超级块，修改所述只读副本的超级块 目的地存储系统的存储器，以及将修改的超级块与配置为先前与源虚拟卷的只读副本的超级块相关联的一个或多个虚拟卷块号，而不启动目的地一致性点（DCP ），以使目标虚拟卷可写。 该方法还包括修改磁盘组标签以反映目标存储磁盘与可写目标虚拟卷的关联，并启动DCP以确保修改的超级块和修改的磁盘组标签被刷新到目标存储磁盘。