This has been going on for some time, but nothing has yet gone bang!  I can't 
understand what the errors mean.  They seem to occur every other day.  The 
machine is a laptop.  Also I am not sure if these errors occurred when I 
forced a reboot a few times when a WiFi USB driver crashed and locked up my 
keyboard.  Should I be worried?

======================================================
# cat /var/log/messages | grep Prefailure
Dec 17 13:36:15 lappy smartd[6284]: Device: /dev/hda, SMART Prefailure 
Attribute: 1 Raw_Read_Error_Rate changed from 99 to 98
Dec 17 22:00:27 lappy smartd[6267]: Device: /dev/hda, SMART Prefailure 
Attribute: 1 Raw_Read_Error_Rate changed from 98 to 99
Dec 19 14:37:02 lappy smartd[6268]: Device: /dev/hda, SMART Prefailure 
Attribute: 1 Raw_Read_Error_Rate changed from 99 to 100
Dec 19 14:37:02 lappy smartd[6268]: Device: /dev/hda, SMART Prefailure 
Attribute: 2 Throughput_Performance changed from 105 to 100
Dec 19 14:37:02 lappy smartd[6268]: Device: /dev/hda, SMART Prefailure 
Attribute: 8 Seek_Time_Performance changed from 120 to 100
Dec 19 16:07:01 lappy smartd[6268]: Device: /dev/hda, SMART Prefailure 
Attribute: 2 Throughput_Performance changed from 100 to 105
Dec 19 16:07:01 lappy smartd[6268]: Device: /dev/hda, SMART Prefailure 
Attribute: 8 Seek_Time_Performance changed from 100 to 116
======================================================
-- 
Regards,
Mick

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