The storage system maintains messages in the /etc/messages file on its root volume. The level of information that the storage system records in the /etc/messages file is configurable in the /etc/syslog.conf file.
Every Sunday at midnight, the /etc/messages file is copied to /etc/messages.0, the /etc/messages.0 file is copied to /etc/messages.1, and so on. The system saves messages for up to six weeks; therefore, you can have up to seven message files (/etc/messages.0 through /etc/messages.5 and the current /etc/messages file).
Message logging is done by a syslogd daemon. The /etc/syslog.conf configuration file on the storage system’s root volume determines how system messages are logged. Depending on their severity and origin, messages can be sent to the following entities:
By default, all system messages (except those with debug-level severity) are sent to the console and logged in the /etc/messages file. The messages include the storage system name.