I'm using a QNAP TR-004U USB Enclosure:

https://www.qnapworks.com/TR-004U.asp?srsltid=AfmBOor6t-c7780CxVOsFx2jRTrP05cFH2Mv8z8m5TpMtFn9DBTlke67

 

I know, I know.. don't use USB enclosures.   It is what it is and works for my needs and has been reliable thus far.

 

I'm wondering if there is away to get the SMART details to be shown in the UI. Currently it shows "Unknown USB Bridge" and gives no information.  However, I'm able to see the SMART info for each drive by running the following commands from terminal:

 

smartctl -d jmb39x-q,0 -x /dev/sda
smartctl -d jmb39x-q,1 -x /dev/sdb
smartctl -d jmb39x-q,2 -x /dev/sdc
smartctl -d jmb39x-q,3 -x /dev/sdd

 

 

I've tried modifying the /boot/config/smart-one.cfg around the parameters I've listed above, with no sucess.

 

Any pointers would be helpful. 

I guess, I have told already before: "DONT USE THIS THING!"

 

The USB Bridge cuts off UNRAID from the Disks and QNAP won't tell anybody how to overcome this.

 

Its not "USB enclosures" in general (although there is a certain small risk that a wrong USB driver/chip may interrupt connection and produce read/parity errors), its about those enclosures that "hide" the drives from the OS by renaming the disks and potentially modify the commands going to/coming from them.

Some add certain offsets to sector numbers, some rename the drives, some do other bad things. In all these cases the drives are unreadable elsewhere.

And in no way UNRAID has a chance to correct this.

 

If you want that vendor, stick with him.

Nobody can help you here I think.

I would set it up as an raid5 on the box hw mode.

And assign it to a pool.

That way it handels parity 1 disk fail.

It might shift address /sda to sdb and back again, but should not mess with parity,

As that is handled by the unit it self.

 

But yes smart info is useless on these units, as described above.

Edited April 17, 20251 yr by Jaycedk