Multiple Failure Detection Option for Failover
Besides standard failover detection due to system failure, ClusterReplica Standard Edition supports
additional failure detections.
- Keep-alive failover detection (default, required)
This is the duration of time which helps the local system to determine whether the
remote system is still alive. If the local system gets no response from the remote system
within the defined time period, the local system will start the Failover
process if it is the Secondary station; or begin to operate in
standalone mode if it is the Primary station.
- Network card failover detection
If the Primary system
detects a problem with its network card in the failover enabled mode, failover
will be activated to promote the Secondary system to be the Primary.
- Monitored services failover detection
This
option allows ClusterReplica to monitor user specified services in the
failover enabled mode. As soon as any monitored service fails to respond,
failover is activated to promote the Secondary system to be the Primary
system.
- User-defined web page failover detection
This option allows
ClusterReplica to monitor user specified web pages for pre-defined keywords
in the failover enabled mode. If the keyword is missing from the monitored
pages, failover is activated to promote the Secondary system to be the
Primary system.
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