The GV-VSM is event-alert text messages service recommended for a large cluster of networked GV-Systems where an enormous amount of maintenance service is required. When any online GV-System is event-triggered, instant text messages will be sent to GV-VSM for IT operator to proceed with maintenance on the GV-System cluster. Following the receipt of the messages, the GV-VSM can activate alarms to the operator’s attention while sending emails and SMS alerts to local subscribers. The purpose of adopting GV-VSM is to help IT operators easily notice GV-Systems health status and response instantly to various frequent events. It can co-work with GV-Center V2 Server and serve as many as 1,000 GV-Systems simultaneously.