US Patent 10133619 Cluster-wide virtual machine health monitoring

Systems for self-configuring health monitoring instrumentation for clustered storage platforms. Master and slave health modules implement a health monitoring system in a clustered virtualization environment comprising a plurality of nodes of the cluster with an installed health module instance running on the nodes. The health module system may gather and analyze data on a node level and at a cluster level to manage the cluster. The cluster health module system observes I/O commands issued to, and I/O command responses returned from, a common storage pool. Health data is stored in the storage pool.