I have three 1TB RE3 (WDC WD1002FBYS-01A6B0) and three 160GB RE1 (WDC WD1600YS-01SHB1) installed in my local servers. Every HDD should have a power on time of at least one year now, though SMART reports 66 hours for every RE3, while its close to three years for my old RE1s.
Why doesn’t it keep properly track of its total power on time?
Here is a sample log of one of my RE3:
ID# ATTRIBUTE_NAME FLAGS VALUE WORST THRESH FAIL RAW_VALUE
1 Raw_Read_Error_Rate POSR-K 200 200 047 - 0
3 Spin_Up_Time bleep --K 253 253 039 - 1233
4 Start_Stop_Count -O–CK 098 098 050 - 2411
5 Reallocated_Sector_Ct PO–CK 200 200 051 - 0
7 Seek_Error_Rate -OSR-K 200 200 046 - 0
9 Power_On_Hours -O–CK 100 100 050 - 66
10 Spin_Retry_Count -O–CK 100 100 050 - 0
11 Calibration_Retry_Count -O–CK 100 100 050 - 0
12 Power_Cycle_Count -O–CK 098 098 050 - 2368
192 Power-Off_Retract_Count -O–CK 200 200 050 - 480
193 Load_Cycle_Count -O–CK 200 200 050 - 2405
194 Temperature_Celsius -O—K 111 090 034 - 39
196 Reallocated_Event_Count -O–CK 200 200 050 - 0
197 Current_Pending_Sector -O–CK 200 200 050 - 0
198 Offline_Uncorrectable ----CK 200 200 048 - 0
199 UDMA_CRC_Error_Count -O–CK 200 200 050 - 0
200 Multi_Zone_Error_Rate —R-- 200 200 008 - 0
||||||_ K auto-keep
||||| C event count
||||_ R error rate
||| S speed/performance
||_ O updated online
| ______ P prefailure warning
And here’s a RE1 smartlog:
ID# ATTRIBUTE_NAME FLAGS VALUE WORST THRESH FAIL RAW_VALUE
1 Raw_Read_Error_Rate POSR-- 200 200 015 - 0
3 Spin_Up_Time PO---- 183 028 003 - 3808
4 Start_Stop_Count -O–CK 096 096 050 - 4466
5 Reallocated_Sector_Ct PO–CK 200 200 051 - 0
7 Seek_Error_Rate POSR-- 200 200 015 - 0
9 Power_On_Hours -O–CK 065 065 050 - 25901
10 Spin_Retry_Count PO–C- 100 100 019 - 0
11 Calibration_Retry_Count PO–C- 100 100 019 - 0
12 Power_Cycle_Count -O–CK 098 098 050 - 2617
194 Temperature_Celsius -O—K 120 086 034 - 27
196 Reallocated_Event_Count -O–CK 200 200 050 - 0
197 Current_Pending_Sector -O–C- 200 200 018 - 0
198 Offline_Uncorrectable ----C- 200 200 016 - 0
199 UDMA_CRC_Error_Count -OSRCK 200 200 062 - 1
200 Multi_Zone_Error_Rate P–R-- 200 200 009 - 0
||||||_ K auto-keep
||||| C event count
||||_ R error rate
||| S speed/performance
||_ O updated online
| ______ P prefailure warning