Hi Ioannis, The one thing that looks problematic is the "UDMA_CRC_Error_Count", which I've always understood (and successfully treated) as a problem with the cable. This is not covered by the self-tests (which indicate that the disk itself is fine). Running a disk test like bonnie from a rescue disk should normally trigger these errors (and you should see the count (RAW_VALUE) increase) Good luck, Maarten. Ioannis Vranos wrote: ... > SMART Attributes Data Structure revision number: 16 > Vendor Specific SMART Attributes with Thresholds: > ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE > UPDATED WHEN_ FAILED RAW_VALUE > 1 Raw_Read_Error_Rate 0x000b 200 200 051 Pre-fail > Always - 0 > 3 Spin_Up_Time 0x0007 113 101 021 Pre-fail > Always - 1683 > 4 Start_Stop_Count 0x0032 099 099 040 Old_age > Always - 1891 > 5 Reallocated_Sector_Ct 0x0033 200 200 140 Pre-fail > Always - 0 > 7 Seek_Error_Rate 0x000b 200 200 051 Pre-fail > Always - 0 > 9 Power_On_Hours 0x0032 092 092 000 Old_age > Always - 5906 > 10 Spin_Retry_Count 0x0013 100 100 051 Pre-fail > Always - 0 > 11 Calibration_Retry_Count 0x0013 100 100 051 Pre-fail > Always - 0 > 12 Power_Cycle_Count 0x0032 099 099 000 Old_age > Always - 1872 > 194 Temperature_Celsius 0x0022 103 010 000 Old_age > Always - 40 > 196 Reallocated_Event_Count 0x0032 200 200 000 Old_age > Always - 0 > 197 Current_Pending_Sector 0x0012 200 200 000 Old_age > Always - 0 > 198 Offline_Uncorrectable 0x0012 200 200 000 Old_age > Always - 0 > 199 UDMA_CRC_Error_Count 0x000a 200 200 000 Old_age > Always - 142 > 200 Multi_Zone_Error_Rate 0x0009 200 200 051 Pre-fail > Offline - 0 > > SMART Error Log Version: 1 > No Errors Logged > > > > That is Pre-fail and Old_age. Is it just old age? :-)