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[bodam]

I am relatively new to FreeNAS. Today I got my first error. Can someone let me know, do I need to replace the disk or should I be doing something else to verify if it is a HW failure.

 

[bodam]

I have a FreeNAS mini and have only had it for 2-3 months and I have been learning FreeNAS as I have gone along.

 

[joeschmuck]

Odds are you will have to replace a hard drive. Because you have a RAIDZ1 I'd recommend that you backup any critical data to an external device/computer.

Next provide the output of "smartctl -a /dev/ada3".

 

[joeschmuck]

If you do need to replace the hard drive (the smart data will tell us), ensure you follow the user manual steps and read them before proceeding. Even though your NAS is new, there is a thing called infant mortality and hard drives are experience it as well, of course I'm assuming the drives are all new. By the way, you can provide that smart data output before backing up your data, it will let us analyze it and give you a recommendation. In my tag line is a link to decode your smart data, refer to the chart for the IDs highlighted in red and if any of those IDs are not zero, you may have an issue.

 

[bodam]

Here it is. It looks OK to me...

SMART overall-health self-assessment test result: PASSED​

 

[joeschmuck]

That does look fine. Now for completeness do it for all your other drives. If you have no issues do the following...

1) Shut down your FreeNAS.
2) Open the case and unplug and then plug in the SATA cables on the drives and the motherboard.
3) Close it up and power on.
4) Check your volume status again if you have a failure you need to fix it.
5) Run a scrub if you don't see any errors.
5) Report your results.

The reason for reseating the SATA cables is this is a possible failure, even a bad SATA cable could occur, it happens. I'm not saying a FreeNAS Mini is made with substandard parts, sometimes you can't avoid it no matter who builds it. Maybe it's nothing as well.

I may not be around when you finish this up today but if you run into some issue, others can offer further advice.

Hey, what version of FreeNAS are you running? Don't rule out a bug either if this is the new release, but it's unlikely, just possible too.

-Joe

 

[bodam]

Followed your suggestions. After I completely cold shut it down and rebooted, everything came back clean. The Alert is green now and the volume is now reported as healthy. I will continue to monitor.

 

[joeschmuck]

I'd run a scrub to ensure that if there are any data issues, it's fixed sooner than later.