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
www.truenas.com
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:
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
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
Hard Drive Troubleshooting Guide (All Versions of FreeNAS)
UPDATE: 22 September 2018 - Added Drive Data Refreshing UPDATE: 2 April 2017 - Added support for FreeNAS Corral (FreeNAS 10 and beyond) UPDATE: 1 November 2020 - Added ID 1 and 7 description for Seagate drives at bottom of Appendix B This guide...

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