Monitor Disk Health

Monitor Disk Health

Self-Monitoring, Analysis and Reporting Technology (SMART) is built into many ATA-3 and later ATA, IDE and SCSI-3 hard drives. The purpose of SMART is to monitor the reliability of the hard drive and predict drive failures, and to carry out different types of drive self-tests.

To enable

config setprop smartd status enabled

And start, (smartd will start automatically on a reboot if enabled)

/etc/rc.d/init.d/smartd start

Errors are emailed admin if and when they are found.

If you receive an email indicating problems, then you should manually run tests & view the report & take appropriate action (eg replace drive if necessary).

To manually check disks

Generate report

smartctl -t short /dev/sda (1 minute)
smartctl -t long /dev/sda (1 hour)
smartctl -t conveyance /dev/sda (5 minutes)

View report

smartctl -a /dev/sda

For additional information see:

http://linuxcommand.org/man_pages/smartd8.html

http://linux.die.net/man/8/smartctl

Error code description: http://en.wikipedia.org/wiki/S.M.A.R.T.