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Write Errors On Parity Disk

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Post the syslog and smartctl report for the respective drive in question.

  • Author

=== START OF INFORMATION SECTION ===
Model Family:     Western Digital Caviar Green (AF)
Device Model:     WDC WD20EARS-00MVWB0
Serial Number:    WD-WMAZA3056033
LU WWN Device Id: 5 0014ee 2affea483
Firmware Version: 51.0AB51
User Capacity:    2,000,398,934,016 bytes [2.00 TB]
Sector Size:      512 bytes logical/physical
Device is:        In smartctl database [for details use: -P show]
ATA Version is:   ATA8-ACS (minor revision not indicated)
SATA Version is:  SATA 2.6, 3.0 Gb/s
Local Time is:    Sun Nov 16 17:01:12 2014 EST
SMART support is: Available - device has SMART capability.
SMART support is: Enabled

=== START OF READ SMART DATA SECTION ===
SMART overall-health self-assessment test result: PASSED

General SMART Values:
Offline data collection status:  (0x84)	Offline data collection activity
				was suspended by an interrupting command from host.
				Auto Offline Data Collection: Enabled.
Self-test execution status:      ( 113)	The previous self-test completed having
				the read element of the test failed.
Total time to complete Offline 
data collection: 		(36600) seconds.
Offline data collection
capabilities: 			 (0x7b) SMART execute Offline immediate.
				Auto Offline data collection on/off support.
				Suspend Offline collection upon new
				command.
				Offline surface scan supported.
				Self-test supported.
				Conveyance Self-test supported.
				Selective Self-test supported.
SMART capabilities:            (0x0003)	Saves SMART data before entering
				power-saving mode.
				Supports SMART auto save timer.
Error logging capability:        (0x01)	Error logging supported.
				General Purpose Logging supported.
Short self-test routine 
recommended polling time: 	 (   2) minutes.
Extended self-test routine
recommended polling time: 	 ( 353) minutes.
Conveyance self-test routine
recommended polling time: 	 (   5) minutes.
SCT capabilities: 	       (0x3035)	SCT Status supported.
				SCT Feature Control supported.
				SCT Data Table supported.

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   197   197   051    Pre-fail  Always       -       18868
  3 Spin_Up_Time            0x0027   253   169   021    Pre-fail  Always       -       1033
  4 Start_Stop_Count        0x0032   100   100   000    Old_age   Always       -       462
  5 Reallocated_Sector_Ct   0x0033   193   193   140    Pre-fail  Always       -       138
  7 Seek_Error_Rate         0x002e   200   200   000    Old_age   Always       -       0
  9 Power_On_Hours          0x0032   055   055   000    Old_age   Always       -       33118
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       -       211
192 Power-Off_Retract_Count 0x0032   200   200   000    Old_age   Always       -       360
193 Load_Cycle_Count        0x0032   001   001   000    Old_age   Always       -       1235035
194 Temperature_Celsius     0x0022   120   110   000    Old_age   Always       -       30
196 Reallocated_Event_Count 0x0032   095   095   000    Old_age   Always       -       105
197 Current_Pending_Sector  0x0032   199   198   000    Old_age   Always       -       646
198 Offline_Uncorrectable   0x0030   200   200   000    Old_age   Offline      -       48
199 UDMA_CRC_Error_Count    0x0032   200   200   000    Old_age   Always       -       2
200 Multi_Zone_Error_Rate   0x0008   187   159   000    Old_age   Offline      -       3664

SMART Error Log Version: 1
ATA Error Count: 2
CR = Command Register [HEX]
FR = Features Register [HEX]
SC = Sector Count Register [HEX]
SN = Sector Number Register [HEX]
CL = Cylinder Low Register [HEX]
CH = Cylinder High Register [HEX]
DH = Device/Head Register [HEX]
DC = Device Command Register [HEX]
ER = Error register [HEX]
ST = Status register [HEX]
Powered_Up_Time is measured from power on, and printed as
DDd+hh:mm:SS.sss where DD=days, hh=hours, mm=minutes,
SS=sec, and sss=millisec. It "wraps" after 49.710 days.

Error 2 occurred at disk power-on lifetime: 32742 hours (1364 days + 6 hours)
  When the command that caused the error occurred, the device was active or idle.

  After command completion occurred, registers were:
  ER ST SC SN CL CH DH
  -- -- -- -- -- -- --
  40 51 70 60 c4 43 ee  Error: UNC 112 sectors at LBA = 0x0e43c460 = 239322208

  Commands leading to the command that caused the error were:
  CR FR SC SN CL CH DH DC   Powered_Up_Time  Command/Feature_Name
  -- -- -- -- -- -- -- --  ----------------  --------------------
  c8 00 70 40 c4 43 ee 08      00:33:04.084  READ DMA
  c8 00 a8 98 c3 43 ee 08      00:33:04.083  READ DMA
  c8 00 48 50 c3 43 ee 08      00:33:04.083  READ DMA
  c8 00 60 f0 c2 43 ee 08      00:33:04.082  READ DMA
  c8 00 38 b8 c2 43 ee 08      00:33:04.082  READ DMA

Error 1 occurred at disk power-on lifetime: 32742 hours (1364 days + 6 hours)
  When the command that caused the error occurred, the device was active or idle.

  After command completion occurred, registers were:
  ER ST SC SN CL CH DH
  -- -- -- -- -- -- --
  40 51 68 c8 97 e8 ea  Error: UNC 104 sectors at LBA = 0x0ae897c8 = 183015368

  Commands leading to the command that caused the error were:
  CR FR SC SN CL CH DH DC   Powered_Up_Time  Command/Feature_Name
  -- -- -- -- -- -- -- --  ----------------  --------------------
  c8 00 68 b8 97 e8 ea 08      00:27:20.309  READ DMA
  c8 00 40 f8 95 e8 ea 08      00:27:16.247  READ DMA
  c8 00 a8 50 95 e8 ea 08      00:27:16.246  READ DMA
  c8 00 30 20 95 e8 ea 08      00:27:16.246  READ DMA

SMART Self-test log structure revision number 1
Num  Test_Description    Status                  Remaining  LifeTime(hours)  LBA_of_first_error
# 1  Short offline       Completed: read failure       10%     33118         314752308
# 2  Extended offline    Completed without error       00%     19422         -

SMART Selective self-test log data structure revision number 1
SPAN  MIN_LBA  MAX_LBA  CURRENT_TEST_STATUS
    1        0        0  Not_testing
    2        0        0  Not_testing
    3        0        0  Not_testing
    4        0        0  Not_testing
    5        0        0  Not_testing
Selective self-test flags (0x0):
  After scanning selected spans, do NOT read-scan remainder of disk.
If Selective self-test is pending on power-up, resume after 0 minute delay.

 

syslog.zip

The SMART report looks a bit doubtful as it shows lots of Pending sectors indicating reads where the data is unreliable.  Those sometimes go away the next time the disk is written but are not a good sign.  The syslig is also showing lots of read errors on the parity disk.

 

Although there may be external factors at work I would certainly be looking to replace that parity disk.

This disk would be useful as a door stopper or to stop a car from rolling downhill, but that's about all.

 

Reallocated sectors, pending sectors, multizone errors, and looks like you had a loose cable error a couple weeks ago. But the other issues have nothing to do with cabling - the drive is dying.

 

=== START OF INFORMATION SECTION ===
Model Family:     Western Digital Caviar Green (AF)
Device Model:     WDC WD20EARS-00MVWB0
Serial Number:    WD-WMAZA3056033
LU WWN Device Id: 5 0014ee 2affea483
Firmware Version: 51.0AB51
User Capacity:    2,000,398,934,016 bytes [2.00 TB]
Sector Size:      512 bytes logical/physical
Device is:        In smartctl database [for details use: -P show]
ATA Version is:   ATA8-ACS (minor revision not indicated)
SATA Version is:  SATA 2.6, 3.0 Gb/s
Local Time is:    Sun Nov 16 17:01:12 2014 EST
SMART support is: Available - device has SMART capability.
SMART support is: Enabled

=== START OF READ SMART DATA SECTION ===
SMART overall-health self-assessment test result: PASSED

General SMART Values:
Offline data collection status:  (0x84)	Offline data collection activity
				was suspended by an interrupting command from host.
				Auto Offline Data Collection: Enabled.
Self-test execution status:      ( 113)	The previous self-test completed having
				the read element of the test failed.
Total time to complete Offline 
data collection: 		(36600) seconds.
Offline data collection
capabilities: 			 (0x7b) SMART execute Offline immediate.
				Auto Offline data collection on/off support.
				Suspend Offline collection upon new
				command.
				Offline surface scan supported.
				Self-test supported.
				Conveyance Self-test supported.
				Selective Self-test supported.
SMART capabilities:            (0x0003)	Saves SMART data before entering
				power-saving mode.
				Supports SMART auto save timer.
Error logging capability:        (0x01)	Error logging supported.
				General Purpose Logging supported.
Short self-test routine 
recommended polling time: 	 (   2) minutes.
Extended self-test routine
recommended polling time: 	 ( 353) minutes.
Conveyance self-test routine
recommended polling time: 	 (   5) minutes.
SCT capabilities: 	       (0x3035)	SCT Status supported.
				SCT Feature Control supported.
				SCT Data Table supported.

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   197   197   051    Pre-fail  Always       -       18868
  3 Spin_Up_Time            0x0027   253   169   021    Pre-fail  Always       -       1033
  4 Start_Stop_Count        0x0032   100   100   000    Old_age   Always       -       462
  5 Reallocated_Sector_Ct   0x0033   193   193   140    Pre-fail  Always       -       138
  7 Seek_Error_Rate         0x002e   200   200   000    Old_age   Always       -       0
  9 Power_On_Hours          0x0032   055   055   000    Old_age   Always       -       33118
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       -       211
192 Power-Off_Retract_Count 0x0032   200   200   000    Old_age   Always       -       360
193 Load_Cycle_Count        0x0032   001   001   000    Old_age   Always       -       1235035
194 Temperature_Celsius     0x0022   120   110   000    Old_age   Always       -       30
196 Reallocated_Event_Count 0x0032   095   095   000    Old_age   Always       -       105
197 Current_Pending_Sector  0x0032   199   198   000    Old_age   Always       -       646
198 Offline_Uncorrectable   0x0030   200   200   000    Old_age   Offline      -       48
199 UDMA_CRC_Error_Count    0x0032   200   200   000    Old_age   Always       -       2
200 Multi_Zone_Error_Rate   0x0008   187   159   000    Old_age   Offline      -       3664

SMART Error Log Version: 1
ATA Error Count: 2
CR = Command Register [HEX]
FR = Features Register [HEX]
SC = Sector Count Register [HEX]
SN = Sector Number Register [HEX]
CL = Cylinder Low Register [HEX]
CH = Cylinder High Register [HEX]
DH = Device/Head Register [HEX]
DC = Device Command Register [HEX]
ER = Error register [HEX]
ST = Status register [HEX]
Powered_Up_Time is measured from power on, and printed as
DDd+hh:mm:SS.sss where DD=days, hh=hours, mm=minutes,
SS=sec, and sss=millisec. It "wraps" after 49.710 days.

Error 2 occurred at disk power-on lifetime: 32742 hours (1364 days + 6 hours)
  When the command that caused the error occurred, the device was active or idle.

  After command completion occurred, registers were:
  ER ST SC SN CL CH DH
  -- -- -- -- -- -- --
  40 51 70 60 c4 43 ee  Error: UNC 112 sectors at LBA = 0x0e43c460 = 239322208

  Commands leading to the command that caused the error were:
  CR FR SC SN CL CH DH DC   Powered_Up_Time  Command/Feature_Name
  -- -- -- -- -- -- -- --  ----------------  --------------------
  c8 00 70 40 c4 43 ee 08      00:33:04.084  READ DMA
  c8 00 a8 98 c3 43 ee 08      00:33:04.083  READ DMA
  c8 00 48 50 c3 43 ee 08      00:33:04.083  READ DMA
  c8 00 60 f0 c2 43 ee 08      00:33:04.082  READ DMA
  c8 00 38 b8 c2 43 ee 08      00:33:04.082  READ DMA

Error 1 occurred at disk power-on lifetime: 32742 hours (1364 days + 6 hours)
  When the command that caused the error occurred, the device was active or idle.

  After command completion occurred, registers were:
  ER ST SC SN CL CH DH
  -- -- -- -- -- -- --
  40 51 68 c8 97 e8 ea  Error: UNC 104 sectors at LBA = 0x0ae897c8 = 183015368

  Commands leading to the command that caused the error were:
  CR FR SC SN CL CH DH DC   Powered_Up_Time  Command/Feature_Name
  -- -- -- -- -- -- -- --  ----------------  --------------------
  c8 00 68 b8 97 e8 ea 08      00:27:20.309  READ DMA
  c8 00 40 f8 95 e8 ea 08      00:27:16.247  READ DMA
  c8 00 a8 50 95 e8 ea 08      00:27:16.246  READ DMA
  c8 00 30 20 95 e8 ea 08      00:27:16.246  READ DMA

SMART Self-test log structure revision number 1
Num  Test_Description    Status                  Remaining  LifeTime(hours)  LBA_of_first_error
# 1  Short offline       Completed: read failure       10%     33118         314752308
# 2  Extended offline    Completed without error       00%     19422         -

SMART Selective self-test log data structure revision number 1
SPAN  MIN_LBA  MAX_LBA  CURRENT_TEST_STATUS
    1        0        0  Not_testing
    2        0        0  Not_testing
    3        0        0  Not_testing
    4        0        0  Not_testing
    5        0        0  Not_testing
Selective self-test flags (0x0):
  After scanning selected spans, do NOT read-scan remainder of disk.
If Selective self-test is pending on power-up, resume after 0 minute delay.

  • Author

thank you all time to get a 3 or 4 tb drive

thank you all time to get a 3 or 4 tb drive

 

As a piece of information that you may NOT be aware of, you are now essentially running without parity protection.  If one of your data drives goes 'south', you will lose data!  I would be replacing that drive as soon as possible.

 

(I had a similar situation about six weeks ago.  I shut that server down, ordered a replacement parity drive, ran two preclear cycles on it (on my test bed server), installed the drive and rebuilt parity.  I then ran a non-correcting parity check to assure that I was fully protected again.) 

You have to wonder how it came to this conclusion

 

"SMART overall-health self-assessment test result: PASSED"

 

That drive doesn't look healthy at all.

You have to wonder how it came to this conclusion

 

"SMART overall-health self-assessment test result: PASSED"

 

That drive doesn't look healthy at all.

 

It can be rationalized that the drive will work just fine for many applications.  Most uses of hard drives do not require that all the sectors on a drive be readable-- just the ones that have "data" stored in them in an recognized operating system file.  unRAID requires that every sector on the drive that is in the 'good sector' table be readable for what most of us consider to be a extremely important operation-- rebuilding another drive!

You have to wonder how it came to this conclusion

 

"SMART overall-health self-assessment test result: PASSED"

 

That drive doesn't look healthy at all.

 

 


5 Reallocated_Sector_Ct   0x0033   193   193   140    Pre-fail  Always       -       138
196 Reallocated_Event_Count 0x0032   095   095   000    Old_age   Always       -       105
197 Current_Pending_Sector  0x0032   199   198   000    Old_age   Always       -       646
198 Offline_Uncorrectable   0x0030   200   200   000    Old_age   Offline      -       48
...
# 1  Short offline       Completed: read failure       10%     33118         314752308

 

 

This is why I suggested to Bonnel (dynamix) that using the self-assessment value as PASSED isn't good enough for unRAID.

Given the current method of providing thumbs up isn't the whole story.

 

 

You have to wonder how it came to this conclusion

 

"SMART overall-health self-assessment test result: PASSED"

 

That drive doesn't look healthy at all.

 

Hard drive manufacturers don't want people RMAing drives due to a handful of SMART errors.  This costs them money.  Manufacturers would probably rather that SMART didn't exist.

You have to wonder how it came to this conclusion

 

"SMART overall-health self-assessment test result: PASSED"

 

That drive doesn't look healthy at all.

 

Hard drive manufacturers don't want people RMAing drives due to a handful of SMART errors.  This costs them money.  Manufacturers would probably rather that SMART didn't exist.

 

I'm sure they wouldn't but the "program" that checks the SMART status and prints out all that data isn't doing anyone any favours telling you the drive has "passed".  Some people will only read that far!  The manufacturers didn't make that program did they?

 

SMART isn't even that accurate due to the fact that each manufacturer has different parameters, and then SSD drives changed it all again.  I haven't found a SMART test program that actually does a good job across a range of drives.  Manually accessing the data is always best.

 

If any drive, in my PC or NAS has a decent amount of errors in SMART (after manually looking over the data), I remove it from use and replace it, and test it a lot before I even think of reusing it.  OCD maybe but under these uses I don't want to take the chance and have to clean up later if it all goes wrong.  For stuff you don't care about like HDD TV Tuner devices that just record TV you wouldn't really care, but there aren't that many situations where a failing hard drive is a good think to keep using.  Hard drives are also pretty cheap these days.  $120AU gets 2Tb here which for most isn't going to be a massive issue.

 

I've had 2 hard drives fail on my PC last month.  One was partially recoverable, and has loads of issues with slow read speeds but passed a SMART test, and only had 50 bad sectors.  The other was passing tests fine, but the PC didn't like it being connected on boot, and even in a USB enclosure it was throwing up errors all over the place.

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