Netapp, Inc.

Network Appliance, Inc.

William R Taylor

Stephen Lee Manley

Atul Ramesh Pandit

Ching-Yuk Paul Ngan

Kalaivani Arumugham

Rakesh Bhargava M R

Akhil Kaushik

Kazunobu Nishime

Methods and systems for Vserver migration are provided. One method includes executing a transfer phase of a migrate operation for migrating a Vserver of a source cluster to a destination cluster, using asynchronous baseline transfer to transfer a plurality of source storage volumes configured in a consistency group (CG) for the migrate operation to a plurality of destination storage volumes of a destination cluster; updating a state of each of the plurality of source storage volumes to a sync state indicating completion of a pre-commit phase of the migrate operation to initiate a commit phase of the migrate operation; and generating a snapshot of the plurality of destination storage volumes for performing data integrity checks between data stored at the source cluster and migrated data at destination cluster, after completing a commit phase of the migrate operation.

Methods and systems for storage virtual machine migration between clusters of a networked storage system

A method and apparatus to generate information representing differences between two data sets are described. Information representing differences between a first data set and a second data set is acquired, where the first and second data sets each include multiple nodes. A traversal map that identifies nodes for which a difference has been detected between the first and second data sets is generated, and then during an output phase, a hierarchy of nodes is traversed to generate output indicating user-level differences between the first and second data sets. The traversal map is used to avoid traversing at least some of the nodes in the hierarchy during the output phase. A child map may be generated to represent parent-child relationships between the nodes and used during the output phase to prefetch certain nodes in the hierarchy.

Method and apparatus for generating user-level difference information about two data sets

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San Jose, CA, United States of America

William R Taylor