Availability and Performance Overview Monitor (SAP Library

Availability and Performance Overview Monitor

Use

With this monitor, you can perform availability monitoring for selected systems and their application servers. The results of this monitoring are displayed in a tree structure, first for each system itself and below that for all of the system’s application servers. The monitor also displays the most important performance attributes for the status of the dialog system for the monitored application servers. For more information about selecting systems and application servers for monitoring, see Customizing Availability Monitoring.

Description of the Tree Structure of the Monitor

This graphic is explained in the accompanying text

Prerequisites

You have performed the Installation of the Availability Agent CCMSPING.

Features

Availability of Systems

Availability monitoring uses the stand-alone agent CCMSPING. This agent checks the availability of the message server of the corresponding system. A system is reported as active in availability monitoring if the message server responds to the availability agent’s query and at least one application server is registered as active with the message server.

Note

The availability agent does not need to log on to a remote system to determine its availability. The data collection procedure with which you can check the availability of possibly hundreds of systems from a central Alert Monitor is therefore extremely fast. The availability monitor also waits for a short time (the default setting is 1.5 seconds) in case a system is unavailable.

The percentage value for availability is calculated from the availability for the last 15 minutes. As the default setting is for the method to be run every five minutes, the last three measurements should be included in the calculation. The threshold value was set by SAP so that an alert is generated at an availability of less than 75%. With one failed availability check and three values in the calculation, the availability is 66%. An alert is therefore triggered by one failed availability check.

Availability of Application Servers

In addition to the availability data for the monitored application servers, this monitor displays the most important values about the status of the dialog system:

Monitoring Tree Element	Description
Dialog Response Time	Average response time for processing a dialog step
Standardized Response Time	As Dialog Response Time, but for a predefined standard transaction
Users Logged On	Number of users that are logged on to an application server

Note

For more information about these nodes, see Dialog Overview Monitor.

If an application server is not available, only a yellow alert is generated. You can check or restart application servers of a system by calling the CCMS Control Panel (Transaction RZ03) in the relevant system.

Analysis Method

If you double click an MTE in this monitor, you start the analysis method Configure Availability and Performance Overview. You can use this method to activate or deactivate availability monitoring for individual systems or application servers. When doing so, note the following:

You can monitor the availability of all systems that are listed in the SAPMSG.ININ file. This file also determines which systems you can reach using SAPLOGON. The system does not need to be known to the monitoring architecture; that is, you do not need to Create an entry for remote monitoring.
The availability monitoring of a system and its application server function independently of each other. Even if you deactivate the monitoring of all application servers for a system, you can still monitor the availability of the system.

Activities

To start the monitor, follow the procedure below:

Start the Alert Monitor using transaction RZ20 or choose CCMS ® Control/Monitoring ® Alert Monitor.
On the CCMS Monitor Sets screen, expand the SAP CCMS Monitor Templates set.
Start the Availability and Performance Overview monitor from the list by double clicking it.