Icon
State
Explanation
Agent Unreachable
Indicates that the status of a target is unknown because the network is down, the Agent is unavailable, or the host on which the target resides is unavailable.
For more information, see About Management Agents.
Under Blackout
Indicates that the target is under scheduled maintenance. Blackouts allow Enterprise Manager users to suspend any data collection activity. For more information, see About Blackouts.
Blackout time is not included when Enterprise Manager calculates the availability percentage for a target.
Metric Collection Error
Indicates that there were problems collecting metric information. There may be a few situations wherein problems in the environment or configuration can cause problems in the metric collection. If this occurs, Enterprise Manager signals this with a metric error.
Investigate this issue by clicking the Management Systems tab and viewing the errors on the Errors subtab.
"Metric Error" is a state that does not occur for the Host and Agent.
Up
Indicates that the target is up.
Down
Indicates that the target is down.
"Down" is a transient state for the Agent. For more information, see the explanation for "Agent Down."
"Down" is a state that does not occur for a host.
Indicates that at least one of the instances in a cluster database is up and at least one instance is down.
The availability of a cluster database is given as a roll-up of all its instances; as long as one instance is up, the cluster database is considered available. This icon will normally be followed by text indicating the number of up instances. For example, (2 of 4 up) indicates that two of four total instances of the cluster database are up.
Agent Down
Indicates that the Agent monitoring the target is "down."
The Agent is a "high availability" component. The "Agent Down" as a current status is rare. It occurs if:
The Agent is down and up again within a two minute cycle (heartbeat interval)
The Agent sends two severity records: "Agent Down" and "Agent Up"
The "Agent Down" status reaches the Management Service but there is a delay in sending the "Agent Up" status
During this state, all targets are in the "Agent Down" availability state and the Agent is in the "Down" availability state.
Status Pending
Indicates a temporary state of the target when the Agent is still calculating its availability.
Status Pending time is not included when Enterprise Manager calculates the availability percentage for a target.
Status Pending is a transient state. It occurs in the following situations:
-
A target is newly added to Enterprise Manager while the Agent is calculating its availability state
-
After a metric error of a target, and the Agent is calculating its availability state
-
After the end of a Blackout of a target, and the Agent is calculating its availability state
