The fire drill procedure is most effective only when it is performed on a regular basis. The above method requires you to test the Secondary failover, manually, at frequent intervals. However, in case VVR is used in a VCS setup where the appropriate agents are installed, then the fire drill procedure can be automated using the RVGSnapshot and RVGPrimary agents that VCS provides. For more information on how you can use these agents to automate the fire drill testing, refer to the VCS Documents.