SAP Basis

ADM100 Lesson: System Start: Logs
Operating system and application messages
• Application Log:
List of errors, warnings, and information that is generated by
application software.
• Security Log:
Events such as log ons and log offs and user access to files.
You can call the event log by choosing Start → Programs → Administrative
Tools → Event Viewer. Choose the relevant component from the menu bar.
The system displays a list of errors, warnings, and information that have
been generated. For detailed information, double click a particular log.
Figure 15: Logging of the Start Process in the SAP System
Logs about the start process of the SAP system are stored in the file system.
If there are problems during the start, these logs can provide useful
information such as error messages or problem descriptions. These files
are stored in the home directory (DIR_HOME) of the relevant instance.
The log files STDERR are created by the SAP service during the start
process. The starting processes write to the individual files, depending on
the sequence in which they are listed in the start profile. The contents
of these log files therefore depends on the individual system setup, and
could, for example, be as follows:
• STDERR1: Information about the start process of the database system.
• STDERR2: Information about the start process of the message server.
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