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2. Failover server monitoring
(1) NVR Status: network connection lost, NVR software and hardware failure
Failover server will check the status of NVR recording server every minute.
User can set up when to make failover server take over the NVR recording
server if NVR recording server has no response sequentially for the set-time.
(Default is 3 times)
(2) Recording Status: HDD failure
Failover server will check the HDD status of NVR recording server every minute.
Once NVR recording server cannot record video to HDD, failover server will
take over it, except for RAID fault tolerance situation.
3. What fails over?
Failover server only takes over below settings of failed NVR recording server to
maintain IP video surveillance system:
Camera settings, Recording settings, Event and action settings, Email settings,
Server setting (server name with UPnP and admin username/password)
Note: NVR failover server will synchronize NVR’s configuration each hour.
4. Failback: cease take-over
(1) NVR Status:
Failover server will check the status of NVR recording server every minute.
Once failover server detects that NVR has been successfully reconnected
network environment, failover NVR will stop take over that NVR.
Note: The IP address and configuration of NVR recording server must have
its original setting.
(2) Recording Status: Change to a new HDD
Once failover server detects NVR recording server has changed to a new HDD,
failover server will stop take over NVR recording server
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