Release 10.1A: OpenEdge Data Management:
Database Administration

> ## Fail over policies

> The fail over policies for Clusters are as follows:

> - IsAliveInterval — The polling interval in between calls to the IsAlive method to determine if the application is still alive. The IsAliveInterval is 60 seconds.

> - LooksAliveInterval — The polling interval in between calls to the LooksAlive method to determine if an application appears alive. The LooksAliveInterval is 5 seconds.

> - CheckInterval — The amount of time to attempt to restart a database on its current node. The CheckInterval period is 900 seconds.

> - FailureReportThreshold — The number of unsuccessful restarts to allow during a CheckInterval period before signaling a fail over request. The FailureReportThreshold is 3.

> - Retries — The number of attempts to start the application before initiating failover. Retries is 3.

> - Delay — The number of seconds to wait prior to initiating fail over. Delay allows the operating system time to perform clean up or other transfer related actions. Delay is 0 seconds.

> - FailBack — Indicates if the application is to be transferred back to the primary node upon its return to operation. FailBack is False (Windows).

> - AutoStart — Indicates to the cluster software that the application should automatically start without operator intervention. AutoStart is True.(Windows).

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