Logging smartd (or any daemon) messages with rsyslog

Rsyslog is the enhanced syslogd for Linux and Unix, extending the good syslog-ng.

If you use smartmontools to monitor your disks with smartd, you can see that your logs are filled with too many information related to your disks. The first solution is to tell smartd to send messages into a local facility (1-7 are available) and then in syslog-ng write all messages sent to that facility into file smartd.log. It's a good solution, as long as this facility is not used for something else.