My WD Elements has only a few operating hours because it was only used for backup operations, but still a lot of bad sectors.
The warranty check says, it is expired.
I never had such problemes with other hard drives, so it seems to fail for no reason. 
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE UPDATED WHEN_FAILED RAW_VALUE
1 Raw_Read_Error_Rate 0x002f 141 141 051 Pre-fail Always - 48057
3 Spin_Up_Time 0x0027 122 118 021 Pre-fail Always - 4883
4 Start_Stop_Count 0x0032 100 100 000 Old_age Always - 153
5 Reallocated_Sector_Ct 0x0033 200 200 140 Pre-fail Always - 6
7 Seek_Error_Rate 0x002e 200 200 000 Old_age Always - 0
9 Power_On_Hours 0x0032 100 100 000 Old_age Always - 412
10 Spin_Retry_Count 0x0032 100 100 000 Old_age Always - 0
11 Calibration_Retry_Count 0x0032 100 100 000 Old_age Always - 0
12 Power_Cycle_Count 0x0032 100 100 000 Old_age Always - 140
192 Power-Off_Retract_Count 0x0032 200 200 000 Old_age Always - 123
193 Load_Cycle_Count 0x0032 197 197 000 Old_age Always - 10180
194 Temperature_Celsius 0x0022 103 093 000 Old_age Always - 44
196 Reallocated_Event_Count 0x0032 198 198 000 Old_age Always - 2
197 Current_Pending_Sector 0x0032 177 176 000 Old_age Always - 2871
198 Offline_Uncorrectable 0x0030 100 253 000 Old_age Offline - 0
199 UDMA_CRC_Error_Count 0x0032 200 200 000 Old_age Always - 0
200 Multi_Zone_Error_Rate 0x0008 100 253 000 Old_age Offline - 0
SMART Error Log Version: 1
No Errors Logged
SMART Self-test log structure revision number 1
Num Test_Description Status Remaining LifeTime(hours) LBA_of_first_error
# 1 Extended offline Completed: read failure 90% 301 1098181220
# 2 Extended offline Completed: read failure 90% 300 1098181216
# 3 Extended offline Completed: read failure 90% 296 1098181216
WD Data Lifeguard Diagnostic:
On the first try, the repair was successfull. But the second scan cancelled with “Too many bad sectors detected”.
Badblocks
The Badblocks scan deteced the frist bad block on 620018163 (with a block size 1024), it should be somewhere at 630GB?
Would it make sense to use the hard drive for uninportant files as a temporary network storage?
Thanks
