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Self-Monitoring, Analysis and Reporting Technology

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S.M.A.R.T. - Self-Monitoring, Analysis, Reporting Technology

This Technology is a monitoring tool for computer hard disks to see troubles in the hardware before they start.

In short words: the hard disk itself checks a lot of parameters and when there are enough parameters not working as they should, the hard disk reports an error. So the hard disk says, when it will die. Links:
http://www.pc-king.co.uk/tips3.htm
http://www.charismac.com/Products/smart/smartrelease.html
Hard disk Specification IBM Deskstar 40GV & 75GXP
[To be continued]
better overview (70-80% of errors can be detected, software errors are detected with other tools, also surface errors of the disk)
What parameters are monitored
what will be notified (changes of parameters, not only absolute values)
article in german