(Another) ATA error count

TrueNAS General
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1

Hi there,

My Truenas is just up and running for a few weeks and I received an ATA error count from 14 to 29. So I ran a Long Smart test (see uploaded text file for results).

My hardware setup is:
Case: Node 804
Motherboard: Cloud Star MATX-C612
Xeon E5-2680 v4
Memory: 128 GB
Raidz1 Pool 4x 12tb seagate (sda is part of this)
1 cache Vdev 256gig NVME
MirrorPool 2x 8tb for replication
VMDisk 1x 256gig NVME

Version of Truenas:
TrueNAS-SCALE-24.10.2

My feeling tell me the disk is fine and something different causes this warning. But I could be wrong so hopefully someone can analyze the smart test for me. Or tell what to do next.

Thanks in advance, greets John

smartctl sda.txt (27.6 KB)

2

Unless you were just joking around, Yup, you are wrong.

 5 Reallocated_Sector_Ct   PO--CK   100   100   010    -    1888
 9 Power_On_Hours          -O--CK   100   100   000    -    836
195 Hardware_ECC_Recovered  -O-RC-   009   006   000    -    147279896

You could be a victim, run the command smartctl -l farm /dev/sda and look for the FARM data Power On Hours value. It should match or be very close to the SMART Power on Hours.

This drive should be RMA’d.

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3

Nope I wasnt joking… the investment was to big haha

The log shows Farm Power on Hours 838… You can check the log file.

smartctl farm hours.txt (19.3 KB)

4

Then you got a very fine new lemon. Hopefully it is under warranty and with nearly 2k reallocated sectors there can be no arguing.

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5

Thanks for the help and pointing me to the reallocated sector count. Now I know what to present as proof and talking point for warranty.

6

These are sectors which cannot be written to reliably and have been permanently set aside following repeated failure. Number should ideally be zero. An increasing count literally means that platters are shedding little flakes.
Your drive has been shedding an average of three sectors per hour throughout its short active life… :scream:

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The FARM log says:

Spindle Power on Hours: 515214578426
Head Flight Hours: 515214578426

That makes this drive 58,814,449 and a half years old - clearly a Seagate 12TB Stegosaurus Pro (it is 7200RPM after all)!!!

More seriously, the 1,888 reallocated sectors, the 7,186 unrecoverable read errors and the 29 uncorrectable errors are all indicators that you should RMA this drive.

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Yes, many of those numbers look fishy to me. The LBAs Read/Written don’t line up, the data is all over the place. Maybe this is an altered drive, I think I said the other day that it wouldn’t take long to figure out how to hack it.

Check the online warranty for the serial number, if it is good, then you should be good.

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Thanks everyone!
I bought 4 of them :sweat_smile: gonna check them all before asking for warranty.

10

Good Luck

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Update, the seller asked me to check the disks with HD Tune Pro (yep a Windows tool).
Eventually 3 out of 4 gave a warning so I want to change all for 4 disks for a new set. From this point on what would you guys advice me? Backup everything create new pool and write all back? Or is there a smarter/faster way?

12

I’d get my money back and find a different seller.

I don’t know what warnings you’re seeing, but 3 out of 4 is an atrocious ratio.

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Yep I know, but my question was wat the easiest way is to switch to a new vdev

14

What do you mean ‘switch to a new vdev’ ?

15

My Pool is holding 4 disks in a raidz1 vdev
I’m going to change the 4 disks, whats the easiest wat to do that?
Resilver each one by one? Backup data create new pool of diks? Or do you have other suggestions?

16

If you have to keep the pool as is,

  1. Buy replacement drives ASAP.
  2. Qualify replacement drives (bad blocks, SMART, etc)
  3. Replace drives to be RMAd one by one with the qualified drives, resilver each time, until the VDEV is healed again.
  4. Scrub pool to eliminate errors
  5. Return drives to be RMA’d

I’d consider looking into goharddrive.com. The used drives they sell are sold with up to a 5 year warranty that I have occasionally used and had zero issues with. Easier than OEM. I highly recommend the HE series from HGST since they use less power than air filled drives.

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17

Wonderful! Thanks, it will take some time resilvering but I’ll take that way.