====== S.M.A.R.T. Disk Monitoring ======
Incorporating [[wp>S.M.A.R.T.]] allows most modern disks to be monitored during their operation.  This article shows how to perform periodic tests, monitor parameters and report unusual events to an operator by e-mail.
===== Supported Releases =====
Should work in all Ubuntu releases.  Tested from 8.04 (Hardy Heron) to 10.10 (Maverick Meerkat) on Ubuntu Server & Desktop 32/64-bit.
===== Required Packages =====
<code>
sudo apt-get install smartmontools
</code>
===== Configuration =====
Log on and become root:
<code>sudo -s</code>
Edit the file ''/etc/default/smartmontools'' and un-comment the following line:
<code>start_smartd=yes</code>
Next, edit ''/etc/smartd.conf'' and make the following changes:
<code>
#DEVICESCAN -m root -M exec /usr/share/smartmontools/smartd-runner

/dev/sda -d ata -a \
-W 2,35,40 \
-s (O/../../7/01|L/../../7/03|C/../../7/05) \
-m user@example.net -M diminishing -M test

/dev/sdb -d ata -a \
-W 2,35,40 \
-s (O/../../7/02|L/../../7/04|C/../../7/06) \
-m user@example.net -M diminishing -M test
</code>
The options for each drive are described below or in more detail on the smartd.conf [[http://smartmontools.sourceforge.net/man/smartd.conf.5.html|man page]]:
^ Parameter  ^ Description  ^
| -d  | Specify the device type: 'ata', 'scsi', 'sat', 'marvell', 'cciss,''N''', 'areca,''N''', 'megaraid,''N''' or '3ware,''N''' where:\\ ''N'' is the controller number |
| -a  | Enable monitoring of the specified device  |
| -W  | Monitor drive temperature in ºC as ''DIFF,INFO,CRIT'' where:\\ ''DIFF'' is the number of degrees change reported\\ ''INFO'' is a warning alarm level\\ ''CRIT'' is critical alarm temperature  |
| -s  | Schedule one or more tests (separated by ''|'') as ''T/MM/DD/d/HH'' where:\\ ''T'' is  'L' for Long, 'S' for Short, 'C' for Conveyance or 'O' for an Offline Immediate Self-Test\\ ''MM'' is the month of the year\\ ''DD'' is the day of the month\\ ''d'' is the day of the week, from 1 (Monday) to 7 (Sunday) inclusive\\ ''HH'' is the hour of the day, in 24 hour format  |
| -m  | Specifies one or more (comma separated, without spaces) e-mail recipients  |
| -M  | Specifies the type of warnings to be sent:\\ 'once' send only one warning e-mail for each type of disk problem detected\\ 'daily' send additional warning reminder e-mails, once per day, for each type of disk problem detected\\ 'diminishing' send additional warning reminder e-mails, after a one-day interval, then a two-day interval, then a four-day interval, and so on for each type of disk problem detected\\ 'test' send a single test e-mail immediately upon smartd startup\\ 'exec ''PATH''' run the executable ''PATH'' instead of the default mail command, when smartd needs to send e-mail  |
Start the monitoring daemon:
<code>service smartmontools start</code>
Check the test e-mail messages are received at the address specified, then edit ''/etc/smartd.conf'' to remove the ''-M test'' parameter and restart the daemon to run it normally:
<code>service smartmontools restart</code>
===== See Also =====
  * [[sigma:how_to]]
  * [[sigma:contact]]