MicroColor ServHA Cluster For Windows X64 dual-machine hot backup software (shared storage version)

ServHA is a dual-machine cluster product running on Windows and Linux platforms. It is responsible for managing two hosts to run their own application systems. When the host or the software on the host fails, manual intervention is not required. The other host in the dual-machine cluster can detect the problem through the heartbeat line. The faulty host is detected, and the application system of the original host is accurately and quickly transferred to another host to continue running, achieving uninterrupted operation of the entire system, thereby ensuring the normal external services of the entire system, and providing a strong guarantee for the 24 hours × 365 days of key business applications of enterprises and institutions.

The two servers (hosts) of the ServHA dual-machine system are connected to the disk array (shared storage) system. The user's operating system, application software and ServHA software are installed on the two hosts respectively. Shared data such as databases are stored on the storage system. A heartbeat connection is established between the two hosts through a private (or public) network. After the configured system host starts working, the ServHA service starts to monitor the system. Through the heartbeat connection, the ServHA service on each host can monitor the status of the other host. When the working host fails, the heartbeat information will change, and this change can be captured by the ServHA service through the heartbeat connection. After capturing this change, ServHA will control the system to perform host switching, that is, the backup machine starts the same application as the working host to take over the work of the working host (including providing TCP/IP network services, storage system access and other services) and issues an alarm to prompt managers to repair the faulty host.