Offline uncorrectable sectors in new drive - a lemon?

[czyzczyz]

I've just built my first truenas box and have populated it with 6 new 4Tb drives and 1 hot spare, formatted as a raidz-2.

I've seen errors show up in the UI's notifications. "Device: /dev/ada5, 8 Offline uncorrectable sectors.", and later ""Device: /dev/ada5, 16 Offline uncorrectable sectors." That seems a bit alarming.

A search of this messageboard uncovered posts about similar issues, though in those cases it was older, failing drives in an established RAID. In this case I first installed and powered up the drive last week. I suppose it's possible that the drive I purchased is new old stock or that I just received a lemon. Or maybe these warnings aren't sufficiently-severe to indicate a failing drive that needs replacement and I shouldn't worry about them for a couple of years?

Based on the courses of action I saw taken in the other message threads, I ran a "smartctl -t long /dev/ada5", waited a day, and then ran "smartctl -a /dev/ada5" and saw the following output. This looks bad to me, but I'm no expert.

Code:

smartctl 7.1 2019-12-30 r5022 [FreeBSD 12.2-RELEASE-p3 amd64] (local build)
Copyright (C) 2002-19, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF INFORMATION SECTION ===
Device Model:     ST4000NC000-1FR168
Serial Number:    Z303NQRB
LU WWN Device Id: 5 000c50 07b0d11e1
Firmware Version: CE03
User Capacity:    4,000,787,030,016 bytes [4.00 TB]
Sector Sizes:     512 bytes logical, 4096 bytes physical
Rotation Rate:    5900 rpm
Form Factor:      3.5 inches
Device is:        Not in smartctl database [for details use: -P showall]
ATA Version is:   ACS-2, ACS-3 T13/2161-D revision 3b
SATA Version is:  SATA 3.1, 6.0 Gb/s (current: 6.0 Gb/s)
Local Time is:    Mon Feb 15 11:07:27 2021 PST
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:      ( 121)    The previous self-test completed having
                    the read element of the test failed.
Total time to complete Offline
data collection:         (  117) 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:      (   1) minutes.
Extended self-test routine
recommended polling time:      ( 496) minutes.
Conveyance self-test routine
recommended polling time:      (   2) minutes.
SCT capabilities:            (0x10bd)    SCT Status supported.
                    SCT Error Recovery Control supported.
                    SCT Feature Control 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   080   063   044    Pre-fail  Always       -       102434592
  3 Spin_Up_Time            0x0003   092   091   000    Pre-fail  Always       -       0
  4 Start_Stop_Count        0x0032   100   100   020    Old_age   Always       -       87
  5 Reallocated_Sector_Ct   0x0033   100   100   010    Pre-fail  Always       -       456
  7 Seek_Error_Rate         0x000f   080   060   030    Pre-fail  Always       -       104065036
  9 Power_On_Hours          0x0032   063   063   000    Old_age   Always       -       33164
 10 Spin_Retry_Count        0x0013   100   100   097    Pre-fail  Always       -       0
 12 Power_Cycle_Count       0x0032   100   100   020    Old_age   Always       -       87
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   099   000    Old_age   Always       -       4295032833
189 High_Fly_Writes         0x003a   100   100   000    Old_age   Always       -       0
190 Airflow_Temperature_Cel 0x0022   065   060   045    Old_age   Always       -       35 (Min/Max 26/36)
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       -       79
193 Load_Cycle_Count        0x0032   100   100   000    Old_age   Always       -       87
194 Temperature_Celsius     0x0022   035   040   000    Old_age   Always       -       35 (0 17 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

SMART Error Log Version: 1
No Errors Logged

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       90%     33138         150261584
# 2  Extended offline    Completed: read failure       90%     33138         150261584
# 3  Short offline       Completed without error       00%     32903         -

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.

Would a smartctl output like this indicate that I'd better replace this drive right away?

Thanks for any help.

 

[Spearfoot]

The drive for which you've shown smartctl output is not a new drive -- it has over 33 thousand hours on it. It's been in use for nearly 4 years.

Code:

  9 Power_On_Hours          0x0032   063   063   000    Old_age   Always       -       33164

I suggest you replace it as soon as you possibly can. It shows several signs of failure: it has reallocated sectors, current pending sectors, offline uncorrectable sectors, fails extended tests... and it's a Seagate!

 

[czyzczyz]

Oh my! Thanks so much for spotting that.

As far as I can tell, the listing for the drives I purchased did not state that they were used drives or pulls, but all of them have Power_On_Hours values within 30 hours of that one. What a disappointment.

Good thing the Truenas UI makes these errors easy to spot.

 

[Spearfoot]

Oh my! Thanks so much for spotting that.

As far as I can tell, the listing for the drives I purchased did not state that they were used drives or pulls, but all of them have Power_On_Hours values within 30 hours of that one. What a disappointment.

Good thing the Truenas UI makes these errors easy to spot.

If you recently bought them on fleabay, you might consider asking the seller for a replacement.

 

[czyzczyz]

Unfortunately I bought them from a third-party seller on newegg months ago. Work became a bit busy and the drives sat on the shelf until last week. So I may be out of the vendor's RMA period. But on the other hand I think the original product listing may have been false advertising as nothing on it indicated these were anything but new drives. I sent a message to the vendor today, will see how it goes.

 

[joeschmuck]

5 Reallocated_Sector_Ct 0x0033 100 100 010 Pre-fail Always - 456

This is really bad too. The person who sold these to you had to have known they were failing. Also, if the price was too good to be true, well you know. you sure they were not selling as spare parts or scrap? If they falsely sold the drives, file a complaint and try to get your money back.

Your warranty expired Dec 9th 2018.