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Should I replace these drives?

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I have two drives, Disk 1 (sdd) and Disk 3 (sdf), giving SMART errors. I ran extended SMART tests recently, but I'm having difficulty interpreting the results. the diagnosticstower-diagnostics-20250228-0911.zip. The drives from the same batch have been replaced recently so I'm assuming these will need a similar treatment. Any opinions and suggestions welcomed.

Edited by Renel

I would say disk3 should be replaced:

  5 Reallocated_Sector_Ct   PO--CK   100   100   010    -    976

What was the SMART error on disk1?   If it was a CRC error then this is a connection issue (SATA or power) rather than an error with the drive itself.

  • Author
Quote

#  Attribute Name                                   Flag                  Value      Worst    Threshold       Type      Updated      Failed               Raw Value

1      Raw read error rate           0x000f                               083      063         044          Pre-fail      Always      Never               233966216

3     Spin up time                      0x0003                              091       091          000          Pre-fail     Always      Never                       0

4     Start stop count                0x0032                              100       100          020          Old age    Always      Never                     216

5     Reallocated sector count   0x0033                              100       100          010           Pre-fail     Always      Never                       0

7     Seek error rate                  0x000f                               072      060          030          Pre-fail     Always      Never                 17021106

9     Power on hours                 0x0032                              079      079          000          Old age    Always      Never        18746 (2y, 1m, 19d, 2h)

10    Spin retry count                0x0013                              100       100           097          Pre-fail     Always     Never                        0

12    Power cycle count            0x0032                              100       100           020         Old age     Always     Never                       151

184  End-to-end error                0x0032                              100      100           099         Old age     Always      Never                       0

187  Reported uncorrect           0x0032                             100       100           000         Old age     Always     Never                        0

188  Command timeout            0x0032                              100      100           000         Old age     Always      Never                       0

189  High fly writes                 0x003a                               100      100           000         Old age     Always     Never                        0

190  Airflow temperature cel    0x0022                              058     053          045          Old age     Always     Never           42 (min/max 34/43)

191   G-sense error rate            0x0032                              100      100          000          Old age      Always     Never                       0

192  Power-off retract count    0x0032                               100     100           000         Old age      Always     Never                      104

193  Load cycle count             0x0032                               100     100          000          Old age      Always     Never                      217

194  Temperature celsius         0x0022                              042     047          000         Old age      Always     Never               42 (0 15 0 0 0)

197  Current pending sector    0x0012                                100     100          000         Old age      Always     Never                        0

198  Offline uncorrectable       0x0010                                100     100          000         Old age      Offline      Never                        0

199 UDMA CRC error count     0x003e                               200     200         000         Old age     Always     Never                         4

 

 

where would I find the SMART error it gave? I was alerted by the thumbs down 'error' in the SMART column in the dashboard. apologies for the response time. the columns distort when I copy paste. I'm not sure if it's a CRC error, but UDMA CRC error count has a Raw Value of 4 and is orange in the UI. not sure if that is relevant.

 

how would I read this information? this is a Seagate drive.

 

EDIT: upon closer inspection the error on disk1 is in fact a CRC error. I didn't realize you could hover over the 'thumbs down' and see a summary of the error. I will investigate its connections and report back.

Edited by Renel

  • Author

I was using a Seagate Terascale and the plastic in and around the SATA connection was so brittle it snapped at some point, but I'm not sure when or how. I'm preclearing a spare drive I had laying around and I'm unsure whether I should replace the failing drive or the drive with the broken SATA connection. I'm leaning on replacing the broken connection because I don't know if I can even get the drive I'd be replacing to connect back to the array. Even if I do, I don't think I would trust the drive to maintain the connection while adding the new drive into the array.

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