Reliability and failover

Feature	Description
Backup drives	One or more drives may be assigned to operate as backup drives: they will be used for recording only in case of failure of all the main drives; at that, once one of the main drives becomes available, the recording to the backup drives will stop
Self-diagnostics	In the course of operation, the video surveillance system components perform automatic self-diagnostics, informing the users about the issues encountered and giving recommendations regarding their rectification
Increased database reliability	Automatic creation of backup copies of the database and automatic restoration of the database after failures