Wikipedia
Smartmontools
__NOTOC__ Smartmontools (S.M.A.R.T. Monitoring Tools) is a set of utility programs (smartctl and smartd) to control and monitor computer storage systems using the Self-Monitoring, Analysis and Reporting Technology (S.M.A.R.T.) system built into most modern (P)ATA, Serial ATA and SCSI hard drives.
Smartmontools displays early warning signs of hard drive problems detected by S.M.A.R.T., often giving notice of impending failure while it is still possible to back data up.
From late 2010 ATA Error Recovery Control configuration has been supported by Smartmontools, allowing it to configure many desktop-and laptop-class hard drives for use in a RAID array and vice versa.
Most Linux distributions provide the smartmontools package.