You can assign alerts to the appropriate administrator for their timely resolution. When issues are investigated and resolved, you can clear them so they no longer require your attention.

You can annotate alert messages to keep an historical record of issues and their resolutions, or you can note a decision that affected the alert resolution.

24.3.1.1 Activity types: alerts and tasks24.3.1.1.1 About alerts

The appliance uses alert messages to report issues with the resources it manages. An alert represents an event for a given resource that typically originates from the resource.

An event describes a single problem or change that occurred on a resource. For example, an event might be an SNMP trap received from a server's Integrated Lights-Out (iLO) management processor.

Each alert has a severity, a state, a description, and an urgency. A user with the proper privileges can clear alerts, assign owners to alerts, and add notes to alerts.

Resources generate alerts to notify you that some action is required.

Alerts contribute to a resource's overall displayed status, but only if the alerts are still active (that is, you have not changed their state to Cleared).

IMPORTANT:

The appliance stores up to 75,000 alert messages. Every 500 alert messages, the appliance determines if the maximum of 75,000 was exceeded. If it has, an auto-cleanup occurs. The auto-cleanup deletes alert messages in the following order until the total number is fewer than 74,200:

Oldest cleared alertsOldest alerts by severityThese stored alert messages differ from the database of stored tasks.24.3.1.1.2 About tasksAll user- or system-initiated tasks are reported as activities:

User-initiated tasks are created when a user adds, creates, removes, updates, or deletes resources.

Other tasks are created by processes running on the appliance, such as gathering utilization data for a server.

The task log provides a valuable source of monitoring and troubleshooting information that you can use to resolve an issue. You can determine the type of task performed, whether the task was completed, when the task was completed, and who initiated the task.

The types of tasks are:

Task type

Description

 

 

User

A user-initiated task, such as creating, editing, or removing an enclosure group or a network set

 

 

Appliance

An appliance-initiated task, such as updating utilization data

 

 

Background

A task performed in the background. This type of task is not displayed in the log.

 

 

174 Monitoring data center status, health, and performance