Discovering cluster resources to efficiently perform cluster backups and restores

摘要

A system and method for identifying properties of virtual resources to efficiently perform backups and restores of cluster data. A cluster of nodes is coupled to a data storage medium. A node receives a request for a backup or a restore of cluster data. In response to this request, the node queries a cluster subsystem and a virtual subsystem of all other cluster nodes for identification of VMs, a subset of corresponding stored data, and an identification of VMs which are highly available (HA). In response to receiving query responses, the node aggregates the results and sends them to a backup server. These to aggregated results may then be used to schedule subsequent backup and restore operations. In addition, the node may use the results to complete the current backup or restore operation.