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288 Advanced configuration
Establishing high availability failover
Configuring availability for single nodes
specified intervals. If a node fails to respond for a specified number of times, the
Availability Monitor generates an event that indicates a drop in availability.
To edit the Availability Monitor configuration file
1
In the Network Security console, click Configuration > Node > Availability
Monitor.
2
In Select Node, click the node from the pull-down list.
3
In Availability Monitor Configuration, add the following line for each host
that you want to monitor:
<hostname or ip address> PING [poll interval] [number failed
responses]
Use the following guidelines in the configuration file:
List only one host per line.
■
Delimit the variables with spaces or tabs.
■
For example, the following line configures the Availability Monitor to
■
ping the host every 8 seconds, and to generate an availability-drop
event if the host fails to respond 8 times in a row, slightly longer than a
minute:
10.0.5.8 PING 8 8
Note: SuperUsers can monitor availability; Administrators, StandardUsers, and
RestrictedUsers cannot. See
about permissions.
Symantec Network Security provides a parameter to monitor the processes of a
single node regularly, and automatically restart any processes that have failed.
If a process on a single node fails, the failure recovery feature notes the failure
and takes action to restart that process. This may include restarting or rebooting
the system. You can enable this restart functionality on a single node outside of
a failover group. Simply enable the Watchdog Process Restart Only parameter for
the node, but do not add it to a failover group.
"User groups reference"
on page 319 for more
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