By default, Agent Manager specifies one or more central computers the agent can contact in the event that its assigned central computer is unavailable. However, you can disable this setting and specify backup central computers for each central computer in your configuration group.
Under certain circumstances, such as maintenance or communications problems, an agent may not be able to communicate with the central computer to which it is assigned. Agent Manager does not leave the agent without a central computer. Instead, Agent Manager temporarily assigns the agent to another central computer, chosen from a list you specify.
When failover to another central computer occurs, the backup central computer provides many of the functions the primary central computer provided until the primary central computer is again accessible. Following failover, agents send events to the backup central computer. The backup central computer can pass rules and configuration to the agent and can scan the agent.
Each central computer can have more than one backup computer. When Agent Manager initiates failover, the inaccessible central computer fails to the first designated backup central computer. If the backup central computer is also unavailable, Agent Manager continues down the list until it identifies an available computer.
NOTE:If you are permanently removing a primary central computer, do not rely on failover to provide agent coverage. Instead, reassign the agent to a different central computer. For more information about changing the central computer to which an agent is assigned, see Section 6.9.3, Changing Which central computer Manages an Agent.
To manually specify central computers for failover:
If the central computers use different service accounts, ensure the service account used by each backup central computer is a member of the local Administrators group on all agents managed by the primary central computer and that each is also either in a trusted domain or the same domain as the database server.
Log on to the Agent Manager Console computer using an account that is a member of the OnePointOp ConfgAdms group.
Start the Agent Manager Console in the NetIQ Sentinel Agent Manager program group.
If you want to disable automatic failover, complete the following steps.
In the left pane, expand Agent Manager Agent Manager Console > Configuration > Global Settings.
In the right pane, click central computers.
On the Action menu, click Properties.
Click Redundancy Policy.
Clear System controlled.
Click OK.
In the left pane, click central computers.
In the right pane, select a central computer for which you want to specify failover computers.
On the Action menu, click Properties.
Click Redundant central computers.
In Available central computers, select a computer.
Click >>.
Repeat Step 9 and Step 10 for each central computer that you want to designate as a failover computer.
Click Move Up and Move Down to arrange the computers in the order that you want failover to occur.
Click OK.