Multi-tenant high-availability system based on SAN (Storage Area Network) storage

The invention provides a multi-tenant high-availability system based on SAN storage, and the system comprises a timer which is configured to trigger a monitoring event according to a set time interval; the monitoring module is configured to return state information to the CTDB event processing module according to a monitoring event; the takeover module is configured to receive resources of a fault node according to a takeover event; and the release module is configured to release resources and sharing of the specified ip according to the release event. The method has the beneficial effects that resources and sharing of a specified ip are released according to a release event, after downtime occurs, all services such as CIFS, NFS, FTP and S3 using a storage system are not influenced, a user can continue to access the services, all tenant virtual environments are not influenced, and after the downtime occurs, the xfile storage service is automatically switched back, so that the user experience is improved. In t