--- title: "DrsInvocationFailedEvent" description: "DRS invocation failure: invocation was not completed. vCenter Server has failed to activate the DRS algorithm. Check DRS event history and log files." canonical: "https://helpcenter.veeam.com/docs/mp/kb/drsinvocationfailedevent.html" breadcrumb: "Veeam MP for VMware Online Knowledge Base > Event-Based Rules > vSphere Cluster Error > DrsInvocationFailedEvent" dateModified: "2026-09-10" --- # DrsInvocationFailedEvent ## Summary DRS invocation failure: invocation was not completed. ## Causes vCenter Server has failed to activate the DRS algorithm. ## Resolutions Check DRS event history and log files. There may be an issue such as unavailable host, host in Maintenance Mode, or host which is in Standby mode and will not respond to wake-on-LAN. ## External Refer to the [VMware Online Documentation](https://techdocs.broadcom.com/) for more information.