NON-DISRUPTIVE CONTROLLER REPLACEMENT IN A CROSS-CLUSTER REDUNDANCY CONFIGURATION

摘要

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.

主权项

1. A method, comprising:
during a storage redundancy giveback from a first node to a second node, initializing the second node following a storage redundancy takeover from the second node by the first node, wherein the initializing the second node comprises:
receiving from the second node a node identification indicator that includes an intra-cluster node connectivity identifier, anddetermining whether the second node is an intra-cluster takeover partner for the first node based on the intra-cluster node connectivity identifier, and in response to determining that the second node is an intra-cluster takeover partner for the first node, performing a giveback of storage resources from the first node to the second node.