Medical information system has been running rely on highly available information system infrastructure construction, the traditional hot standby technology can not meet the current actual demand. This article discusses the management point of view from the shared disk type cluster failover technology program, discusses the LAN from a safety point of view and business flow load balancing, high availability implementation of technology, operating system security and terminal management. Build a real high available information systems infrastructure platform, clear the planned and unplanned outages. Medical institutions in the ordinary course of business protection, application software systems for sustainable operation, to maintain the normal order and medical services for treatment.