Netapp, Inc.

Pankti Vinay Majmudar

Susan M Coatney

Balaji Ramani

Vijay Singh

Kazunobu Nishime

Hrishikesh Keremane

Chaitanya V Patel

Prachi Deshmukh

Amit Valjibhai Panara

Santhosh Unnikrishnan

Sravan Kumar Elpula

Amit V Panara

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.

Storage virtual machine relocation

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.

Non-disruptive controller replacement in a cross-cluster redundancy configuration

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Sunnyvale, CA, United States of America

Pankti Vinay Majmudar