H3C Technologies H3C Intelligent Management Center - Manual (Page 41)

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3 Monitor management
Monitor management in APM allows you to collect performance indexes, health statuses, and
availability of applications, and provides analysis and statistics reports based on this information in
various views. Important concepts and terms in monitor management include:
• Monitor—Employs a background program to collect application index data by using a set of
access parameters and to analyze the health status and availability for the application.
• Host monitor—Organizes applications by host and displays the availability and the health status of
each application.
• Class monitor—Organizes applications by class and type and displays the health status of each
application type.
• Custom View—Displays the performance and health status of monitored applications.
Application monitor
All monitors in APM are defined as application monitors. APM provides the ability to query, add, modify,
and delete the application monitors, as well as the ability to customize the application monitor list,
manage/unmanage an application monitor, poll the monitored applications, and view associated
applications and root cause analysis.
You can view the management status, availability, health status, and traffic statistics of applications
through the application monitor list.
An application monitor has the following statuses:
• Management status—Whether APM attempts to collect monitor indexes from the target application.
The state can be Managed or Unmanaged. For applications in Managed state, APM attempts to
collect their monitor indexes in each polling period. For applications in Unmanaged state, APM
does not collect their monitor indexes. By default, the management status of an application is
Managed.
• Availability—State of the connection between the target application and APM. Available states
include:
{
Available—APM can connect with the target application and collect the specified monitored
indexes.
{
Inaccessible—APM can connect with the target application but cannot collect the specified
monitored indexes. This status can trigger a critical alarm.
{
Unavailable—APM cannot connect with the target application. This status can trigger a critical
alarm.
{
Unmanaged—The target application is not monitored by APM. If the management state is
Unmanaged, the availability of the application also becomes Unmanaged.
• Health Status—Evaluation result of the target application. Available states include:
{
Healthy—The application is available and all indexes collected by APM do not meet the
condition of a Level-1 threshold.
{
Minor—The application is available but APM cannot collect partial monitored indexes. This
health status can trigger a minor alarm.