Restricting your AIX Error Logs

Sometimes, you do not want certain error conditions to show in the errorlog. If at this very moment, you think “what a silly idea this is” – please refrain from any further judgement – eventually you will get the picture.
AIX error reporting facilities, use templates in order to know what conditions constitue an error, and how to collect and display the associated with them information.
For these in need or more in-depth info, please look it up in AIX docs or on-line.
Instructing error logging facilities what not to report and/or not to include in the log (among many other things) is done with help of the errupdate command. This command can process your directives contained in an ASCI files or directly from the command line. Error IDENTIFIER is used to identify the error you want to work with. Multiple entries (error IDENTIFIERs and the associated with them processing instructions) must be separated with a blank line.
Look at the few lines shown next showing interaction with errupdate via command line:

root@MarcoPolo: /root> errupdate
=B6048838:
REPORT=FALSE

The first character you type is the = character to indicate modification of existing reporting behaviour associated with error label B6048838. Do you notice the : character following the error label? After you hit the Enter key, you can enter any of the following directives: REPORT, LOG and ALERT. Each may equal either TRUE or FALSE. When you are done, hit Enter twice to activate the changes.
REPORT - The info about events for which REPORTING is disabled is saved in the error log but it is not displayed with the errpt command.
LOG - The info about events for which LOGGING is disabled is not sent to the error log file.
To achieve identical results using an ASCI file to specify the modifications, follow the procedure bellow:
root@MarcoPolo: /root> mkdir -p /var/adm/errorFilter
root@MarcoPolo: /root> cd /var/adm/errorFilter
root@MarcoPolo: /var/adm/errorFilter> vi errorFilter Edit to your satisfaction.
root@MarcoPolo: /var/adm/errorFilter> cat errorFilter
=B6048838:
REPORT=FALSE
LOG=FALSE
ALERT=FALSE

root@MarcoPolo: /var/adm/errorFilter> errupdate ./errorFilter
0 entries added.
0 entries deleted.
1 entries updated.
The results will not only be the requires modifications but also a file in the same directory as the errorFilter named errorFilter.undo - its name reveals its purpose.