Tuesday, 20 July 2010

Scan hard drive for errors with badblocks

To scan a suspect hard drive for errors I use the linux badblocks program. Windows often seems to silently try to "fix" problems without telling you what if anything was wrong which does not help if I want to know if a hdd is starting to get bad sectors.  Be careful as this program in destructive mode will overwrite your data (but also give a more thorough test as it will try writing to the disk as well as reading)
#badblocks -nvs /dev/sda
-n = non destructive (read only mode)
-v = verbose
-s = Print out progress

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