During a node failure, VM configuration files are moved to the next member node in the HA and auto started. Note that this migration applies to the configuration files only and not the virtual disk image. A VM cannot be started by HA when the disk image is not stored on shared storage. When a VM is stored locally, then HA will only move the configuration file and will be unable to move the disk image. This will produce error when HA tries to auto start the VM.