About understanding alert counts in the Monitor view
Alerts apply only to the object (primary server) where the corresponding alert policy is created. When alerts are raised for that policy they are raised on the selected object. For example, a Frozen Media alert occurs when any of the selected media on the selected primary server (object) are frozen. Consider a case where you create an alert policy for a selected view that contains two primary servers. For creating the policy, you select an alert condition of Frozen Media type. Since this primary server is present in the view, the alert is listed when you select the specific server and the specific view from the View Pane.
Some types of alerts, for example Low Disk Volume Capacity apply across managed server groups. In this case, the disk volume capacity is calculated based on the disks from all primary servers in the selected group. The alert does not apply to a single primary server in the group but applies to the server group on which the alert policy was created. This means that only one alert is raised for the group, if the disk volume capacity for the servers in the selected group is lower than the user-defined threshold. An alert is not generated for every primary server that is a part of the group. Therefore, the alert is listed only when you select the server group on which alert policy is created (or a parent group of that group).
If you create this type of alert policy for a single managed server, the alert is raised on the server since the server is the selected object. The alert can also be viewed if all the nodes or views that contain the primary server are selected.
The following OpsCenter alert policy conditions apply across groups:
High Frozen Media
Low Disk Volume Capacity
Low Available Media
The following OpsCenter alert policy conditions apply for single managed server:
High Down Drives
High Job Failure Rate
High Suspended Media
Some types of alerts for example, High Job Failure Rate apply to a single primary server. In this case, the job failure rate is calculated based on the jobs per primary server in the selected group. Alert is raised, if the job failure rate for any primary server is greater than the user-defined threshold. Only one alert is raised for all those primary servers, for which the job failure rate is greater than the user-defined threshold.