A hot spare is used as a failover mechanism to provide reliability for your system. If you build the hot spare system when installing the SYS service, you can enable the hot spare function and configure the hot spare property of the current SYS server as host server or spare server. When the host server fails, the spare server switches into operation, thus ensuring the stability of the system.

1. Click System > Advanced > Hot Spare.
2. Set the Hot Spare Configuration switch to ON to enable the hot spare function.

   The current SYS server's server name and available IP address will be displayed.

3. Set the server as host server or spare server in Hot Spare Property.
4. Click Save.