Boot pool error but SMART long test no error

zigjack

Cadet
Joined
May 3, 2021
Messages
4
Hi there!

Installed recently TrueNAS latest stable on a HP Gen8 G1610t, with 3 HDD for NAS and 1 SSD for the boot (inside specific case connected through internal USB as, as far as I understood, TrueNAS can only boot on UEFI, I had no other choices)
Everything going pretty well if we set apart this issue:
I have random GUI failure (not able to connect...) and when I am looking at the console I can see a repeated message
"Polaris: WARNING: Pool 'boot-pool' has encountered an uncorrectable I/O failure and has been suspended", the only way to solve is reboot (No SSH access when it occurs)
Of course I have read the guide
and performed the SMART long test, but there is nothing describes into the guide that could help here. Here is the outcome of the test:

1620026169791.png


I just noticed some warnings however that I am not sure it links to my issue.
So is there anything else I have to look into?
Or is this just a specific side effect of my special setup and then I should just disable SMART on my boot SSD?

Thanks in advance for the help, wishing you a good day ahead :)

Zig
 

GBillR

Contributor
Joined
Jun 12, 2016
Messages
189
Installed recently TrueNAS latest stable on a HP Gen8 G1610t, with 3 HDD for NAS and 1 SSD for the boot (inside specific case connected through internal USB as, as far as I understood, TrueNAS can only boot on UEFI, I had no other choices)
Using a SATA to USB as a boot pool is asking for problems, and definitely not recommended. Why can't you connect this direct to a SATA port? I boot 11.3 in legacy, and I do not think TrueNAS requires UEFI. And even if it does... you should still be able to boot from a SSD connected to onboard SATA.

When using this type of setup, you most often will not get accurate SMART data from the drive, and SMART tests may not finish, if they even run.

Your GUI issue and lock-up is very likely caused by how you have the boot pool connected. If you want to use USB (not recommended), use a true USB flash drive, not some SATA to USB interface.

and performed the SMART long test...

I just noticed some warnings however that I am not sure it links to my issue.

Those warnings are most likely due to your using a USB interface on this drive. Fix that and see if your problem goes away.
 

zigjack

Cadet
Joined
May 3, 2021
Messages
4
Thanks for the feedback!
Indeed, I presume that such cases are not ideal solution, in fact, I have searched a bit and it seems that I may be able to boot from Bios instead of UEFI, this is an option I have surely overlooked during installation.
Here is the link in which I have found that, if it can help other people...

I assume that I have to start from scratch then... :)

Thank you again and have a nice day!
 

GBillR

Contributor
Joined
Jun 12, 2016
Messages
189
I assume that I have to start from scratch then... :)
No. If you have a backup of the config, you can do a fresh install and upload that config. If the system data set is on your data pool, I think this might work without a backup config, but I am not certain.

If you can access the gui, I would download the current config to be safe.

Your data pool should remain intact regardless. You might have to import the data pool, and reconfigure shares and users if you cannot upload a recent config file, but that should be worse case.
 

zigjack

Cadet
Joined
May 3, 2021
Messages
4
Thanks for the advice and the feedback.

Finally, I prefer to keep my setup the way it is, just disabling the SMART monitoring of the SSD.
On worst case, the system will go mad, and I would finally have to do a reinstall with config import.
I am backing my config every month on external drives, I should be safe on this side.

And since I have disabled the SMART feature on this SSD (just a few days now) I do not have any errors, so perhaps it should be enough for me :)

Anyway, thanks again for the input and the new perspective of thinking :)
 
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