Availability Monitoring (SAP Library

Availability Monitoring

Purpose

With this function, you can monitor in the Alert Monitor of a central SAP system whether remote SAP systems and their application servers are available for work. Important performance attributes for the dialog system are also collected on the application servers as of SAP Web Application Server 6.10.

Integration

Availability monitoring uses the alert and display functions of the monitoring architecture. However, for data collection (that is, to determine whether a remote system is active and available), availability monitoring uses the CCMS agent CCMSPING (see also Installing Availability Agent CCMSPING). This agent is a stand-alone program that runs outside the SAP system. By using an agent, you can efficiently monitor the availability of a large number of systems from a central location, without an inactive system causing an error in the display of the Alert Monitor.

Features

Availability monitoring has the following special features:

You can decide which systems and which application servers in your environment should be monitored for availability.
Availability monitoring also displays the following performance attributes for monitored application servers:

Dialog Response Time
Number of Users Logged On
Standardized dialog response time (as of SAP Basis 4.5B)

The prerequisites for this are:

Central monitoring system with SAP Web Application Server ³ 6.10
Monitored system with SAP Basis ³ 3.1I
CCMSPING with release status 6.20.

Availability monitoring is independent of monitoring of other objects in the Alert Monitor. You do not need to register a remote system in the central monitoring system to be able to monitor its availability.
The Alert Monitor does not need to log on to a remote system to be able to determine its availability. The data collection procedure with which you can check the availability of hundreds of systems from a central CCMS Alert Monitor is therefore extremely fast. The availability agent also waits for a short time (timeout) in case a system is temporarily unavailable.

CCMSPOING 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.

Functional Principle of the Availability Agent CCMSPING

This graphic is explained in the accompanying text

Customizing Availability Monitoring