There are several logs provided by AIX that are very useful, but often overlooked:
Shutdown LogsA log can happen during shutdown that gets missed. Fortunately there is a simple remedy! Always use the "-l" (Logging) flag e.g. shutdown -lF, as this creates the file "/etc/shutdown.log" and this can yield a lot of interesting information and aid fault resolution.
SNMP LoggingStart by checking with version of SNMPD you are using:
# ls -l /usr/sbin/snmpd
lrwxrwxrwx 1 root system 19 Apr 17 2012 /usr/sbin/snmpd -> /usr/sbin/snmpdv3ne
The example above shows that this system is using version-3.
SNMPD Version 1.If you are using traditional SNMPD (not recommended as it has lots of security issues)
The "/etc/snmpd.conf" file controls the behaviour of this daemon and the default is not to log anything. To start logging see the following entries:
logging file=/usr/tmp/snmpd.log enabled
logging size=100000 level=0
Ensure that the file "??.log" exists and that the "level" is either 1, 2, or 3, then restart the daemon. You should then