[SOLVED] Seek And Read Error Rates - Should I Be Worried?

extraordinarytimes

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Apr 19, 2020
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https://www.amazon.com/Seagate-External-Desktop-Photography-STEL8000100/dp/B01HD6ZLQ6

I bought these drives something like 3 odd years ago or so and although I fully understand these drives are only for backup proposes only, which is what I do. I sometimes, quite often, on a weekly basis upload gigabytes of data to an FTP server from one of the drives and sometimes watch movies off of it with the family gathered round.

Take a look at these readings.


----------------------------------------------------------------------------
(2) ST8000DM004-2xxxxx
----------------------------------------------------------------------------
Model : ST8000DM004-2xxxxx
Firmware : 0001
Serial Number : ZCTxxxxxx
Disk Size : 8001.5 GB (8.4/137.4/8001.5/8001.5)
Buffer Size : Unknown
Queue Depth : 32
# of Sectors : 15628053168
Rotation Rate : 5425 RPM
Interface : UASP (Serial ATA)
Major Version : ACS-3
Minor Version : ACS-3 Revision 5
Transfer Mode : SATA/300 | SATA/600
Power On Hours : 2755 hours
Power On Count : 816 count
Temperature : 28 C (82 F)
Health Status : Good
Features : S.M.A.R.T., 48bit LBA, NCQ
APM Level : ----
AAM Level : ----
Drive Letter : F:

-- S.M.A.R.T. --------------------------------------------------------------
ID Cur Wor Thr RawValues(6) Attribute Name
01 _75 _63 __6 000001B3F822 Read Error Rate
03 _93 _92 __0 000000000000 Spin-Up Time
04 100 100 _20 0000000003B8 Start/Stop Count
05 100 100 _10 000000000000 Reallocated Sectors Count
07 _75 _60 _45 000001F4A4CE Seek Error Rate
09 _97 _97 __0 280000000AC3 Power-On Hours
0A 100 100 _97 000000000000 Spin Retry Count
0C 100 100 _20 000000000330 Power Cycle Count
B7 100 100 __0 000000000000 Vendor Specific
B8 100 100 _99 000000000000 End-to-End Error
BB 100 100 __0 000000000000 Reported Uncorrectable Errors
BC 100 100 __0 000100010002 Command Timeout
BD 100 100 __0 000000000000 High Fly Writes
BE _72 _46 _40 00001C1C001C Airflow Temperature
BF 100 100 __0 000000000000 G-Sense Error Rate
C0 100 100 __0 000000000072 Power-off Retract Count
C1 _99 _99 __0 000000000EFF Load/Unload Cycle Count
C2 _28 _54 __0 00140000001C Temperature
C3 _75 _64 __0 000001B3F822 Hardware ECC recovered
C5 100 100 __0 000000000000 Current Pending Sector Count
C6 100 100 __0 000000000000 Uncorrectable Sector Count
C7 200 200 __0 000000000000 UltraDMA CRC Error Count
F0 100 253 __0 72BF0000092C Head Flying Hours
F1 100 253 __0 000A7EC9907D Total Host Writes
F2 100 253 __0 000284A2DA16 Total Host Reads


----------------------------------------------------------------------------

TIA.
 
Last edited:
Solution
Seagate's raw SMART values are counterintuitive. They represent sector counts and seek counts, not error counts. In fact your drive has recorded 0 seek errors.

Seek Error Rate and Hardware ECC Recovered SMART attributes:
http://www.hddoracle.com/viewtopic.php?f=6&t=89&p=13814

Seagate SMART Attribute Specification: http://t1.daumcdn.net/brunch/service/user/axm/file/zRYOdwPu3OMoKYmBOby1fEEQEbU.pdf

Normal SATA SMART Attribute Behavior (Seagate):
http://t1.daumcdn.net/brunch/service/user/axm/file/Vw3RJSZllYbDc86ssL6bofiL4r0.pdf

In short, your SMART report is OK.
Seagate's raw SMART values are counterintuitive. They represent sector counts and seek counts, not error counts. In fact your drive has recorded 0 seek errors.

Seek Error Rate and Hardware ECC Recovered SMART attributes:
http://www.hddoracle.com/viewtopic.php?f=6&t=89&p=13814

Seagate SMART Attribute Specification: http://t1.daumcdn.net/brunch/service/user/axm/file/zRYOdwPu3OMoKYmBOby1fEEQEbU.pdf

Normal SATA SMART Attribute Behavior (Seagate):
http://t1.daumcdn.net/brunch/service/user/axm/file/Vw3RJSZllYbDc86ssL6bofiL4r0.pdf

In short, your SMART report is OK.
 
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