Bad sector alert-GUI vs smartctl

1kokies

Contributor
Joined
Oct 7, 2017
Messages
138
Hi Guys,

Been away for a while

1. 14/02 GUI gives an alert 16 bad sectors on /dev/da0

2. 14/02 smartctl -A /dev/da0 shows 16 bad sectors

Code:
root@freenas:~ # smartctl -A /dev/da0
smartctl 6.6 2017-11-05 r4594 [FreeBSD 11.2-STABLE amd64] (local build)
Copyright (C) 2002-17, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF READ SMART DATA SECTION ===
SMART Attributes Data Structure revision number: 10
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME          FLAG     VALUE WORST THRESH TYPE      UPDATED  WHEN_FAILED RAW_VALUE
  1 Raw_Read_Error_Rate     0x000f   078   064   044    Pre-fail  Always       -       60398392
  3 Spin_Up_Time            0x0003   094   093   000    Pre-fail  Always       -       0
  4 Start_Stop_Count        0x0032   100   100   020    Old_age   Always       -       282
  5 Reallocated_Sector_Ct   0x0033   100   100   010    Pre-fail  Always       -       0
  7 Seek_Error_Rate         0x000f   090   060   045    Pre-fail  Always       -       992659476
  9 Power_On_Hours          0x0032   079   079   000    Old_age   Always       -       18517 (195 44 0)
10 Spin_Retry_Count        0x0013   100   100   097    Pre-fail  Always       -       0
12 Power_Cycle_Count       0x0032   100   100   020    Old_age   Always       -       283
184 End-to-End_Error        0x0032   100   100   099    Old_age   Always       -       0
187 Reported_Uncorrect      0x0032   100   100   000    Old_age   Always       -       0
188 Command_Timeout         0x0032   100   097   000    Old_age   Always       -       8590065679
189 High_Fly_Writes         0x003a   100   100   000    Old_age   Always       -       0
190 Airflow_Temperature_Cel 0x0022   064   048   040    Old_age   Always       -       36 (Min/Max 28/40)
191 G-Sense_Error_Rate      0x0032   100   100   000    Old_age   Always       -       0
192 Power-Off_Retract_Count 0x0032   100   100   000    Old_age   Always       -       248
193 Load_Cycle_Count        0x0032   100   100   000    Old_age   Always       -       509
194 Temperature_Celsius     0x0022   036   052   000    Old_age   Always       -       36 (0 22 0 0 0)
197 Current_Pending_Sector  0x0012   100   100   000    Old_age   Always       -       16
198 Offline_Uncorrectable   0x0010   100   100   000    Old_age   Offline      -       16
199 UDMA_CRC_Error_Count    0x003e   200   200   000    Old_age   Always       -       0
240 Head_Flying_Hours       0x0000   100   253   000    Old_age   Offline      -       18497 (186 212 0)
241 Total_LBAs_Written      0x0000   100   253   000    Old_age   Offline      -       76102343178
242 Total_LBAs_Read         0x0000   100   253   000    Old_age   Offline      -       33575802391



3. 17/02 did smartctl -t long /dev/da0 and after that smartctl -A /dev/da0 (which shows there is no more 16 bad sectors)

Code:
root@freenas:~ # smartctl -A /dev/da0
smartctl 6.6 2017-11-05 r4594 [FreeBSD 11.2-STABLE amd64] (local build)
Copyright (C) 2002-17, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF READ SMART DATA SECTION ===
SMART Attributes Data Structure revision number: 10
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME          FLAG     VALUE WORST THRESH TYPE      UPDATED  WHEN_FAILED RAW_VALUE
  1 Raw_Read_Error_Rate     0x000f   084   064   044    Pre-fail  Always       -       236480392
  3 Spin_Up_Time            0x0003   094   093   000    Pre-fail  Always       -       0
  4 Start_Stop_Count        0x0032   100   100   020    Old_age   Always       -       282
  5 Reallocated_Sector_Ct   0x0033   100   100   010    Pre-fail  Always       -       0
  7 Seek_Error_Rate         0x000f   090   060   045    Pre-fail  Always       -       998698138
  9 Power_On_Hours          0x0032   079   079   000    Old_age   Always       -       18567 (242 113 0)
10 Spin_Retry_Count        0x0013   100   100   097    Pre-fail  Always       -       0
12 Power_Cycle_Count       0x0032   100   100   020    Old_age   Always       -       283
184 End-to-End_Error        0x0032   100   100   099    Old_age   Always       -       0
187 Reported_Uncorrect      0x0032   100   100   000    Old_age   Always       -       0
188 Command_Timeout         0x0032   100   097   000    Old_age   Always       -       8590065679
189 High_Fly_Writes         0x003a   100   100   000    Old_age   Always       -       0
190 Airflow_Temperature_Cel 0x0022   064   048   040    Old_age   Always       -       36 (Min/Max 28/40)
191 G-Sense_Error_Rate      0x0032   100   100   000    Old_age   Always       -       0
192 Power-Off_Retract_Count 0x0032   100   100   000    Old_age   Always       -       248
193 Load_Cycle_Count        0x0032   100   100   000    Old_age   Always       -       509
194 Temperature_Celsius     0x0022   036   052   000    Old_age   Always       -       36 (0 22 0 0 0)
197 Current_Pending_Sector  0x0012   100   100   000    Old_age   Always       -       0
198 Offline_Uncorrectable   0x0010   100   100   000    Old_age   Offline      -       0
199 UDMA_CRC_Error_Count    0x003e   200   200   000    Old_age   Always       -       0
240 Head_Flying_Hours       0x0000   100   253   000    Old_age   Offline      -       18547 (234 21 0)
241 Total_LBAs_Written      0x0000   100   253   000    Old_age   Offline      -       76274377074
242 Total_LBAs_Read         0x0000   100   253   000    Old_age   Offline      -       33579850503


4. 17/02 GUI still has alerts of 16 bad sectors (as attached screenshot)

so which one to trust & should i activate warranty replacement ?

Advice and experience sharing please
 

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Alecmascot

Guru
Joined
Mar 18, 2014
Messages
1,175
Pending Sectors often go away when that area is over-written.
The alert in your graphic is from the 14th.
Just keep an eye on the drive.
 

1kokies

Contributor
Joined
Oct 7, 2017
Messages
138
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