2TB Caviar Blacks 140 Reallocated Sectors Count

[Mannaman]

Well, that's the "problem," though I'm assuming it's a problem. I'm not completely sure.

I bought two 2TB Caviar Black HDDs a few weeks ago with a thirty day return/exchange policy and using several "disk info" programs, they all return the same information that both drives have "Threshold" of 140 Reallocated Sectors Count with a "Current" of 200 and a "Worst" of 200.

My Hitachi 1TB shows only "5" in the "Threshold" column and it's been running 6417 hours.

Do I have a misunderstanding here or do these drives have too many reallocated sectors for new drives?

I called the store where I purchased the drives and no one can tell me anything.

 

[Fear No Evil]

I don't think those numbers mean what you think they do. When I check SMART attributes of my 1.5GB WD Black (Using the Intel SSD Toolbox, it still shows results for non-Intel drives) it shows 140 as the Threshold and 200 for Normalized and Worst. But it also has a column called 'RAW' and its 0. You'd probably have to check with Western Digital but I bet its not a problem.

 

[Elixer]

Yeah, it isn't a problem until those start to degrade.

 

[Soulkeeper]

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 0x002f 170 170 051 Pre-fail Always - 32642
3 Spin_Up_Time 0x0027 177 173 021 Pre-fail Always - 4150
4 Start_Stop_Count 0x0032 100 100 000 Old_age Always - 22
5 Reallocated_Sector_Ct 0x0033 112 112 140 Pre-fail Always FAILING_NOW 701
7 Seek_Error_Rate 0x002e 200 200 000 Old_age Always - 0
9 Power_On_Hours 0x0032 097 097 000 Old_age Always - 2895
10 Spin_Retry_Count 0x0032 100 253 000 Old_age Always - 0
11 Calibration_Retry_Count 0x0032 100 253 000 Old_age Always - 0
12 Power_Cycle_Count 0x0032 100 100 000 Old_age Always - 21
192 Power-Off_Retract_Count 0x0032 200 200 000 Old_age Always - 20
193 Load_Cycle_Count 0x0032 200 200 000 Old_age Always - 1
194 Temperature_Celsius 0x0022 109 108 000 Old_age Always - 38
196 Reallocated_Event_Count 0x0032 001 001 000 Old_age Always - 517
197 Current_Pending_Sector 0x0032 200 200 000 Old_age Always - 0
198 Offline_Uncorrectable 0x0030 200 200 000 Old_age Offline - 3
199 UDMA_CRC_Error_Count 0x0032 200 200 000 Old_age Always - 0
200 Multi_Zone_Error_Rate 0x0008 196 196 000 Old_age Offline - 909


Here is an example of a failed WD black that I just RMA'd last week.
don't confuse the raw values with thresholds

If you do indeed have reallocated sectors then immediately backup and zero the drive for return.
Fortunately I had a mirrored backup because my drive was too far gone to allow a backup when I noticed the problem.