*Failover setup (2.5 and lower)
- Tom Polman
Configuration Article | CA-20200930-TP-26 VDG Sense | Setup | Failover  |  |
Introduction
This article explains the function of the Failover tab. The Failover tab shows the list of configured Failover servers on the left side, the list of monitored server of the selected Failover server in the middle and the configuration of the selected failover server on the right side. In the lower left corner of the screen are plus and minus buttons are there to add or remove failover servers or to add and remove monitored servers.
See below for an example of a failover server and associated monitored servers, in this case the failover server is monitoring two servers:
Setup
Daily Backup
Enable or disable daily backup of settings. It is recommended to enable this setting as this will ensure the Failover server always has the latest settings.UTC time
Time when the settings backup needs to take placeLocal time
This is a translation of the UTC time to local timeBackup all servers
Do a settings backup of all server. If one or more servers are not available the Last backup colon will show ‘failed backup’.Automatically take over server
If enabled the failover server will automatically takeover the monitored server which has failed.Automatically restore server
If enabled the failover server will automatically restore the original configuration when the monitored server is restored.Take over server
Manually take over server, assuming it is offlineReset restored server
Manually restore serverAdvanced
Open dialog for Advanced failover settings, see below
Advanced
In VDG Sense 2.4.24 and higher, you have the ability to modify the timeout settings for the failover server. Click the ‘Advanced’ button, to open the following dialog.
Type | Default value | Min value | Max value | Description |
|---|---|---|---|---|
Connected | 5 minutes | 5 minutes | 60 minutes | A network connection has been made, but the first startup message has not been received |
Started | 5 minutes | 5 minutes | 60 minutes | The startup message has been received, but the first keep-alive message has not been received |
Keep alive | 30 seconds | 30 seconds | 300 seconds | No new keep-alive message is received |
Normal shutdown | 15 minutes | 5 minutes | 60 minutes | The server has been shutdown normally, but has not restarted yet |
Abnormal shutdown | 5 minutes | 5 minutes | 60 minutes | The server has exited with an error and has not restarted yet |
Storage
To access the recorded videodata on the failover server, the monitored server needs to know where to find it. This is done by adding a configuration parameter to the file ‘DivaServer.ini’ for DIVA or ‘SenseVideoManager.ini’ for Sense, which can be found in the server settings folder.
The syntax of the configuration parameter is as follows:
[FailoverStorePath]
Value=<Failover server address><monitored server address>
For example if the Failover server has IP address ‘192.168.204.151’ and the monitored server has IP address ‘192.168.205.2’ the configuration option in DivaServer.ini / SenseVideoManager.ini on the monitored server looks like this:
Plugin
For more information about configuring the Failover plugin, click here.