After the user logs on to iManager, the user can access the iManager overview page, view the status information for the GIS server, the GIS portal, and the database (MySQL, Oracle, MongoDB and PostgreSQL); View system CPU occupation, system memory, and access statistics for the GIS server and GIS portals; View system alarm information. The topology provides GIS environment monitoring in the form of topology map to visually display monitoring results, you can export the topology, refresh the topology, and control the node display in the topology. On the top right side of iManager navigation bar, you can click the button to hide/expose the navigation bar; On the top right corner of iManager page, you can select the skin of iManager, see the number of unread alarm messages(click the clock to view the alarm history), link to the help documentation, select the language, modify the account’s password, and log out iManager.