{{MessageBox|backgroundcolor = #faa|image =Warning.png|heading =WARNING|message = This is recommended only for advanced users, proceed with caution.}}Finding out a disk is bad after it crashes can often prove disastrous. To be warned of a failing disk is something we all would appreciate. This can be done via [http://smartmontools.sourceforge.net/|smartmontools]], a free software package that can monitor S.M.A.R.T. attributes and run hard drive self-tests. Basically, S.M.A.R.T. may give you enough of a warning that you can safely backup all your data before your hard drive dies. Obviously, nothing replaces regular backups, but it's absolutely better than knowing nothing!

 First, Sendmail is off by default with Amahi installed. To You will need to enable it, so do the following as '''root''' user('''NOTE:''' Skip if using Postfix):{{Code| service sendmail start chkconfig sendmail on}}

This may already be installed in your system. If not, as '''root ''' user do:{{Code| yum -y install smartmontools}}

{{Code| smartctl -i /dev/sda}}

To setup smartd to monitor your system automatically, edit the file ''/etc/smartd.conf'' (alternate location is ''/etc/smartmontools/smartd.conf''' ) and check for a line that begins with ''DEVICESCAN''. Comment it out by adding a ‘#’ to the beginning of the line something like this:{{Text|Text= #DEVICESCAN -H -m root -n standby,10,q}}

{{Text|Text= /dev/sda -n standby -a -I 194 -W 6,45,55 -R 5 -M daily -M test -m root}}

{{Code| service smartd start}}

To restart after a rebootenable start on boot:{{Code| chkconfig smartd on}}

You can read local mail sent to root using [http://www.amahi.org/appapps/webmin Webmin].