Offline (uncorrectable) Sectors, but tests fine?

Norlig · Jan 4, 2020

Hi,

One of the Harddrives in my NAS is throwing an Device error.
It's a Seagate 8TB drive, one of 4 in RaidZ1, running FreeNAS-11.2-U7

However, when I take the disk out and test it with Seagate SeaTools and HDTune, it seems to come out fine:

Can anyone explain what this error indicates is actually wrong?
Predicted failure?

artlessknave · Jan 4, 2020

the way zfs tests and verifies data is often more accurate than even testing tools, because zfs doesnt trust any drive to return correct data in the first place, ever......
errors like this can also be caused by bad controllers/ports/cables, not just the drive itself
basically what this means is that your raidz1 is very much at risk. hopefully you have a backup, or the contents aren't very important to you....

AlexGG · Jan 4, 2020

artlessknave said:
the way zfs tests and verifies data is often more accurate than even testing tools, because zfs doesnt trust any drive to return correct data in the first place, ever......
errors like this can also be caused by bad controllers/ports/cables, not just the drive itself

The report says "Current pending sectors count" and "Offline uncorrectable". There are other SMART attibutes and signals related to cabling and whatnot, but these "Current pending" and "Offline uncorrectable" are both internal to the drive.

Norlig said:
Can anyone explain what this error indicates is actually wrong?

Both of these refer to bad sectors which are not yet finally declared bad, but eventually invariably will be. This drive is to be replaced as soon as practical. It is not dead yet, but it is likely to degrade further, and can no longer be considered reliable.

Can you get us SMART attribute data for the offending drive?

Jailer · Jan 4, 2020

It failed a long smart test, the drive is toast and you should replace it asap.

Unfortunately sifting through the chafe is something that is required of this forum these days.....

Tsaukpaetra · Jan 5, 2020

Yeah. I've experienced this with a brand-new (DOM September 2019) drive. I was like "WTF I thought I burned-in fine" (Only two passes though), yet here we are.
Hoping Seagate will cross-ship a replacement; That one's in a RaidZ2 so I'm not overly concerned with (checks) 40 (holy crap) uncorrectable sectors so far, but it annoying...

Norlig · Jan 5, 2020

AlexGG said:
The report says "Current pending sectors count" and "Offline uncorrectable". There are other SMART attibutes and signals related to cabling and whatnot, but these "Current pending" and "Offline uncorrectable" are both internal to the drive.

Both of these refer to bad sectors which are not yet finally declared bad, but eventually invariably will be. This drive is to be replaced as soon as practical. It is not dead yet, but it is likely to degrade further, and can no longer be considered reliable.

Can you get us SMART attribute data for the offending drive?

Code:

root@FREENAS:~ # smartctl -a /dev/ada2
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 INFORMATION SECTION ===
Device Model:     ST8000DM004-2CX188
Serial Number:    <edited out by me>
LU WWN Device Id: <edited out by me>
Firmware Version: 0001
User Capacity:    8,001,563,222,016 bytes [8.00 TB]
Sector Sizes:     512 bytes logical, 4096 bytes physical
Rotation Rate:    5425 rpm
Device is:        Not in smartctl database [for details use: -P showall]
ATA Version is:   ACS-3 T13/2161-D revision 5
SATA Version is:  SATA 3.1, 6.0 Gb/s (current: 6.0 Gb/s)
Local Time is:    Sun Jan  5 11:17:01 2020 CET
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:  (0x82) Offline data collection activity
                                        was completed without error.
                                        Auto Offline Data Collection: Enabled.
Self-test execution status:      (   0) The previous self-test routine completed
                                        without error or no self-test has ever
                                        been run.
Total time to complete Offline
data collection:                (    0) seconds.
Offline data collection
capabilities:                    (0x7b) SMART execute Offline immediate.
                                        Auto Offline data collection on/off supp                                                                                                                                                             ort.
                                        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:        (   1) minutes.
Extended self-test routine
recommended polling time:        ( 947) minutes.
Conveyance self-test routine
recommended polling time:        (   2) minutes.
SCT capabilities:              (0x30a5) SCT Status supported.
                                        SCT Data Table supported.

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   082   062   006    Pre-fail  Always       -                                                                                                                                                                    146865024
  3 Spin_Up_Time            0x0003   091   091   000    Pre-fail  Always       -                                                                                                                                                                    0
  4 Start_Stop_Count        0x0032   097   097   020    Old_age   Always       -                                                                                                                                                                    3833
  5 Reallocated_Sector_Ct   0x0033   100   100   010    Pre-fail  Always       -                                                                                                                                                                    0
  7 Seek_Error_Rate         0x000f   085   060   045    Pre-fail  Always       -                                                                                                                                                                    299953092
  9 Power_On_Hours          0x0032   080   080   000    Old_age   Always       -                                                                                                                                                                    17944 (50 101 0)
10 Spin_Retry_Count        0x0013   100   100   097    Pre-fail  Always       -                                                                                                                                                                    0
12 Power_Cycle_Count       0x0032   100   100   020    Old_age   Always       -                                                                                                                                                                    56
183 Runtime_Bad_Block       0x0032   100   100   000    Old_age   Always       -                                                                                                                                                                    0
184 End-to-End_Error        0x0032   100   100   099    Old_age   Always       -                                                                                                                                                                    0
187 Reported_Uncorrect      0x0032   098   098   000    Old_age   Always       -                                                                                                                                                                    2
188 Command_Timeout         0x0032   100   100   000    Old_age   Always       -                                                                                                                                                                    0
189 High_Fly_Writes         0x003a   100   100   000    Old_age   Always       -                                                                                                                                                                    0
190 Airflow_Temperature_Cel 0x0022   061   054   040    Old_age   Always       -                                                                                                                                                                    39 (Min/Max 36/41)
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       -                                                                                                                                                                    317
193 Load_Cycle_Count        0x0032   095   095   000    Old_age   Always       -                                                                                                                                                                    11337
194 Temperature_Celsius     0x0022   039   046   000    Old_age   Always       -                                                                                                                                                                    39 (0 17 0 0 0)
195 Hardware_ECC_Recovered  0x001a   082   064   000    Old_age   Always       -                                                                                                                                                                    146865024
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      -                                                                                                                                                                    13256 (215 57 0)
241 Total_LBAs_Written      0x0000   100   253   000    Old_age   Offline      -                                                                                                                                                                    10102564444
242 Total_LBAs_Read         0x0000   100   253   000    Old_age   Offline      -                                                                                                                                                                    281916847577

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: 17896 hours (745 days + 16 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 00 ff ff ff 0f  Error: UNC at LBA = 0x0fffffff = 268435455

  Commands leading to the command that caused the error were:
  CR FR SC SN CL CH DH DC   Powered_Up_Time  Command/Feature_Name
  -- -- -- -- -- -- -- --  ----------------  --------------------
  60 00 e8 ff ff ff 4f 00  11d+19:40:27.330  READ FPDMA QUEUED
  60 00 00 ff ff ff 4f 00  11d+19:40:27.330  READ FPDMA QUEUED
  60 00 00 ff ff ff 4f 00  11d+19:40:27.329  READ FPDMA QUEUED
  60 00 00 ff ff ff 4f 00  11d+19:40:27.329  READ FPDMA QUEUED
  60 00 00 ff ff ff 4f 00  11d+19:40:27.329  READ FPDMA QUEUED

Error 1 occurred at disk power-on lifetime: 15304 hours (637 days + 16 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 00 ff ff ff 0f  Error: UNC at LBA = 0x0fffffff = 268435455

  Commands leading to the command that caused the error were:
  CR FR SC SN CL CH DH DC   Powered_Up_Time  Command/Feature_Name
  -- -- -- -- -- -- -- --  ----------------  --------------------
  60 00 e8 ff ff ff 4f 00   1d+21:12:47.788  READ FPDMA QUEUED
  60 00 00 ff ff ff 4f 00   1d+21:12:47.788  READ FPDMA QUEUED
  60 00 00 ff ff ff 4f 00   1d+21:12:47.788  READ FPDMA QUEUED
  60 00 00 ff ff ff 4f 00   1d+21:12:47.788  READ FPDMA QUEUED
  60 00 00 ff ff ff 4f 00   1d+21:12:47.787  READ FPDMA QUEUED

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       20%     17851         -
# 2  Short offline       Completed without error       00%     17767         -
# 3  Short offline       Completed without error       00%     17695         -
# 4  Short offline       Completed without error       00%     17623         -
# 5  Short offline       Completed without error       00%     17550         -
# 6  Short offline       Completed without error       00%     17478         -
# 7  Extended offline    Completed without error       00%     17446         -
# 8  Short offline       Completed without error       00%     17382         -
# 9  Short offline       Completed without error       00%     17311         -
#10  Short offline       Completed without error       00%     17239         -
#11  Short offline       Completed without error       00%     17167         -
#12  Extended offline    Completed without error       00%     17111         -
#13  Short offline       Completed without error       00%     17047         -
#14  Short offline       Completed without error       00%     16975         -
#15  Short offline       Completed without error       00%     16903         -
#16  Short offline       Completed without error       00%     16831         -
#17  Short offline       Completed without error       00%     16759         -
#18  Extended offline    Completed without error       00%     16728         -
#19  Short offline       Completed without error       00%     16663         -
#20  Short offline       Completed without error       00%     16593         -
#21  Short offline       Completed without error       00%     16521         -

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.

It is currently resilvering back into the Pool, as I don't have another drive to replace it with just yet.
It's just outside of manufacturers-warranty, but still under consumer-warranty (Norwegian law says electronics have a minimum of 5 years life expectancy)

I had another drive in this pool fail 4 months ago, and got it replaced by manufacturers-warranty, but that one did show errors in both SeaTools and HDTune, so I dont know if they will replace this drive for me just yet if its not detecting in Seagates own tool..

Tsaukpaetra · Jan 5, 2020

How curious, the drive that's acting up on my is also a ST8000DM004-2CX188. Curious indeed....

Constantin · Jan 5, 2020

Scenarios like this is why I standardized my pool and my backup disks around one drive type, for which I keep a burned in but cold spare on site.

It also speaks in favor of buying a motley collection of used stuff based on a known good platform (ie HGST in the past) since the failures should be more random than with drives from the same batch.

Despite some very oligopolistic pricing behavior on the part of OEMs, service has only gotten worse. Too bad the sale of HGST was allowed.

AlexGG · Jan 5, 2020

That's strange.

SMART attributes say the drive is clean, with raw values of zero for "Current pending sectors", "Offline uncorrectable" and generally everything looks just great about the drive. However the screenshot from the first post clearly mentions these being non-zero. And the error log, referencing

Code:

Error 2 occurred at disk power-on lifetime: 17896 hours (745 days + 16 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 00 ff ff ff 0f  Error: UNC at LBA = 0x0fffffff = 268435455

repeats twice with the same LBA and the address looks strange, being 128 GB minus one sector (if I'm not mistaken with my calculation)?

Since serial numbers are understandably blanked out of the log, can you check with Seagate website if there is a firmware update available for this drive? I would much like to take a look at their change log if they have any, but I don't recommend you apply any firmware updates, if available, at the moment.

Tsaukpaetra · Jan 5, 2020

AlexGG said:
can you check with Seagate website if there is a firmware update available for this drive? I would much like to take a look at their change log if they have any, but I don't recommend you apply any firmware updates, if available, at the moment.

Yeah, I checked mine and there was nothing (which makes sense, it's only three months old). Firmware last released... uh... Hmm, they don't show prior versions of firmware.

Norlig · Jan 5, 2020

AlexGG said:
That's strange.

SMART attributes say the drive is clean, with raw values of zero for "Current pending sectors", "Offline uncorrectable" and generally everything looks just great about the drive. However the screenshot from the first post clearly mentions these being non-zero. And the error log, referencing

Code:
Error 2 occurred at disk power-on lifetime: 17896 hours (745 days + 16 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 00 ff ff ff 0f Error: UNC at LBA = 0x0fffffff = 268435455

repeats twice with the same LBA and the address looks strange, being 128 GB minus one sector (if I'm not mistaken with my calculation)?

Since serial numbers are understandably blanked out of the log, can you check with Seagate website if there is a firmware update available for this drive? I would much like to take a look at their change log if they have any, but I don't recommend you apply any firmware updates, if available, at the moment.

"No newer firmware available" on the link @Tsaukpaetra referenced.

I dont know if the S.M.A.R.T log might be different now since the drive was wiped during my testing in windows, and FreeNas havent detected it yet?
I have scheduled a long S.M.A.R.T for tomorrow, so possibly it will find something again.

AlexGG · Jan 6, 2020

Norlig said:
I don't know if the S.M.A.R.T log might be different now since the drive was wiped during my testing in windows, and FreeNas havent detected it yet?

In any case,
1. SMART is (or should be) persistent, not something which goes away when disk is wiped
2. there was a reference to dev/ada2 in both warning message quoting pending sectors, and your smartctl output, so it is supposedly is the same drive

there must be some simple explanation, but I can only suggest the drive jumped /dev/adaX positions, and test is from the different drive from the one which produced the original message. The error from the log is also mighty suspicious, regardless of other shenanigans.

acutally, the other possibility is that overwrite corrected the presumably defective sectors, although I have never seen that happen without leaving some or other trace in SMART attributes.

Tsaukpaetra · Jan 6, 2020

AlexGG said:
acutally, the other possibility is that overwrite corrected the presumably defective sectors, although I have never seen that happen without leaving some or other trace in SMART attributes.

Yeah, in theory those pending sectors should be converted into reallocated sectors, but that didn't happen to me (and it looks like it didn't happen here either). Really strange...

HoneyBadger · Jan 6, 2020

Norlig said:
ST8000DM004

Tsaukpaetra said:
How curious, the drive that's acting up on my is also a ST8000DM004-2CX188.

More Seagate SMR drives. I'm starting to notice a pattern here with them kicking back offline uncorrectable sectors; or it could just be that they're lousy gear.

Regarding the counters resetting, I know there's been some situations where a "bad sector" that was given an erase command was simply marked as "permanently dead" by the drive, rolled over into a failed/reallocated sector. It really ought to have something in there.

Norlig · Jan 7, 2020

New S.M.A.R.T log after Long test in Freenas:

Code:

root@Petter-NAS:~ # smartctl -a /dev/ada2
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 INFORMATION SECTION ===
Device Model:     ST8000DM004-2CX188
Serial Number:    <edited out by me>
LU WWN Device Id: <edited out by me>
Firmware Version: 0001
User Capacity:    8,001,563,222,016 bytes [8.00 TB]
Sector Sizes:     512 bytes logical, 4096 bytes physical
Rotation Rate:    5425 rpm
Device is:        Not in smartctl database [for details use: -P showall]
ATA Version is:   ACS-3 T13/2161-D revision 5
SATA Version is:  SATA 3.1, 6.0 Gb/s (current: 6.0 Gb/s)
Local Time is:    Tue Jan  7 10:12:11 2020 CET
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:  (0x82) Offline data collection activity
                                        was completed without error.
                                        Auto Offline Data Collection: Enabled.
Self-test execution status:      (   0) The previous self-test routine completed
                                        without error or no self-test has ever
                                        been run.
Total time to complete Offline
data collection:                (    0) seconds.
Offline data collection
capabilities:                    (0x7b) SMART execute Offline immediate.
                                        Auto Offline data collection on/off supp                                                         ort.
                                        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:        (   1) minutes.
Extended self-test routine
recommended polling time:        ( 947) minutes.
Conveyance self-test routine
recommended polling time:        (   2) minutes.
SCT capabilities:              (0x30a5) SCT Status supported.
                                        SCT Data Table supported.

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   073   062   006    Pre-fail  Always       -                                                                101054024
  3 Spin_Up_Time            0x0003   091   091   000    Pre-fail  Always       -                                                                0
  4 Start_Stop_Count        0x0032   097   097   020    Old_age   Always       -                                                                3843
  5 Reallocated_Sector_Ct   0x0033   100   100   010    Pre-fail  Always       -                                                                0
  7 Seek_Error_Rate         0x000f   085   060   045    Pre-fail  Always       -                                                                306228597
  9 Power_On_Hours          0x0032   080   080   000    Old_age   Always       -                                                                17991 (220 118 0)
 10 Spin_Retry_Count        0x0013   100   100   097    Pre-fail  Always       -                                                                0
 12 Power_Cycle_Count       0x0032   100   100   020    Old_age   Always       -                                                                56
183 Runtime_Bad_Block       0x0032   100   100   000    Old_age   Always       -                                                                0
184 End-to-End_Error        0x0032   100   100   099    Old_age   Always       -                                                                0
187 Reported_Uncorrect      0x0032   098   098   000    Old_age   Always       -                                                                2
188 Command_Timeout         0x0032   100   100   000    Old_age   Always       -                                                                0
189 High_Fly_Writes         0x003a   100   100   000    Old_age   Always       -                                                                0
190 Airflow_Temperature_Cel 0x0022   064   054   040    Old_age   Always       -                                                                36 (Min/Max 32/42)
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       -                                                                317
193 Load_Cycle_Count        0x0032   095   095   000    Old_age   Always       -                                                                11370
194 Temperature_Celsius     0x0022   036   046   000    Old_age   Always       -                                                                36 (0 17 0 0 0)
195 Hardware_ECC_Recovered  0x001a   080   064   000    Old_age   Always       -                                                                101054024
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      -                                                                13298 (105 133 0)
241 Total_LBAs_Written      0x0000   100   253   000    Old_age   Offline      -                                                                12758087524
242 Total_LBAs_Read         0x0000   100   253   000    Old_age   Offline      -                                                                281916859713

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: 17896 hours (745 days + 16 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 00 ff ff ff 0f  Error: UNC at LBA = 0x0fffffff = 268435455

  Commands leading to the command that caused the error were:
  CR FR SC SN CL CH DH DC   Powered_Up_Time  Command/Feature_Name
  -- -- -- -- -- -- -- --  ----------------  --------------------
  60 00 e8 ff ff ff 4f 00  11d+19:40:27.330  READ FPDMA QUEUED
  60 00 00 ff ff ff 4f 00  11d+19:40:27.330  READ FPDMA QUEUED
  60 00 00 ff ff ff 4f 00  11d+19:40:27.329  READ FPDMA QUEUED
  60 00 00 ff ff ff 4f 00  11d+19:40:27.329  READ FPDMA QUEUED
  60 00 00 ff ff ff 4f 00  11d+19:40:27.329  READ FPDMA QUEUED

Error 1 occurred at disk power-on lifetime: 15304 hours (637 days + 16 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 00 ff ff ff 0f  Error: UNC at LBA = 0x0fffffff = 268435455

  Commands leading to the command that caused the error were:
  CR FR SC SN CL CH DH DC   Powered_Up_Time  Command/Feature_Name
  -- -- -- -- -- -- -- --  ----------------  --------------------
  60 00 e8 ff ff ff 4f 00   1d+21:12:47.788  READ FPDMA QUEUED
  60 00 00 ff ff ff 4f 00   1d+21:12:47.788  READ FPDMA QUEUED
  60 00 00 ff ff ff 4f 00   1d+21:12:47.788  READ FPDMA QUEUED
  60 00 00 ff ff ff 4f 00   1d+21:12:47.788  READ FPDMA QUEUED
  60 00 00 ff ff ff 4f 00   1d+21:12:47.787  READ FPDMA QUEUED

SMART Self-test log structure revision number 1
Num  Test_Description    Status                  Remaining  LifeTime(hours)  LBA                                                         _of_first_error
# 1  Short offline       Completed without error       00%     17982         -
# 2  Extended offline    Completed without error       00%     17980         -
# 3  Short offline       Completed without error       00%     17953         -
# 4  Extended offline    Completed: read failure       20%     17851         -
# 5  Short offline       Completed without error       00%     17767         -
# 6  Short offline       Completed without error       00%     17695         -
# 7  Short offline       Completed without error       00%     17623         -
# 8  Short offline       Completed without error       00%     17550         -
# 9  Short offline       Completed without error       00%     17478         -
#10  Extended offline    Completed without error       00%     17446         -
#11  Short offline       Completed without error       00%     17382         -
#12  Short offline       Completed without error       00%     17311         -
#13  Short offline       Completed without error       00%     17239         -
#14  Short offline       Completed without error       00%     17167         -
#15  Extended offline    Completed without error       00%     17111         -
#16  Short offline       Completed without error       00%     17047         -
#17  Short offline       Completed without error       00%     16975         -
#18  Short offline       Completed without error       00%     16903         -
#19  Short offline       Completed without error       00%     16831         -
#20  Short offline       Completed without error       00%     16759         -
#21  Extended offline    Completed without error       00%     16728         -
1 of 1 failed self-tests are outdated by newer successful extended offline self-                                                         test # 2

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.

The #2 Extended Offline now completed without error ?

The web-store said they have had alot of issues with these drives, but will still need to test it.
If I send it in, it's possible they wont find an issue, return it to me and I have to pay a fee..

Suggestions?

Tsaukpaetra · Jan 7, 2020

Well I'm biting the bullet and initiated an RMA. Will report back, my drive mysteriously went from 56 unforgettable sectors to 48 since the last day and I'm done fooling around.

AlexGG · Jan 7, 2020

Tsaukpaetra said:
Well I'm biting the bullet and initiated an RMA.

Any chance you can get a SMART log before you send it off? I'm interested if it has something like this

Code:

Error 1 occurred at disk power-on lifetime: 15304 hours (637 days + 16 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 00 ff ff ff 0f  Error: UNC at LBA = 0x0fffffff = 268435455

Specifically the (2^n-1) LBA involved.

Tsaukpaetra · Jan 7, 2020

Sure thing! I don't expect to send it off for another week if Seagate is to be believed.

Tsaukpaetra · Jan 12, 2020

AlexGG said:
Any chance you can get a SMART log before you send it off? I'm interested if it has something like this

Here you go:

SmartCTL ST8000DM004-2CX188 - Pastebin.com

Pastebin.com is the number one paste tool since 2002. Pastebin is a website where you can store text online for a set period of time.

pastebin.com

It does indeed have the same weird location registers.

Norlig · Jan 13, 2020

I am gonna keep using it untill I get another error on it, I got email notifications set to send any errors so I'll know immediately.

I still got almost 3 years of consumer-warranty on it, and the data is not critical.

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Offline (uncorrectable) Sectors, but tests fine?

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