JorgeB

IIRC, that was done because of this, but it should keep working if you are using the plugin:

It may be worth a try, to rule out any flash/USB issues.

Yep

The pool disappearing is more consistent with a flash drive issue, but not the disk issues IMO, so there could be more than one problem.

Let Unraid auto import the pool: on main click on the first device for that pool and then "remove pool" back on main, create a new pool with the same name and 4 slots assign the pool devices, leave the filesystem set to auto start the array to import the pool If that still doesn't mount post new diags.

Change one of the mentioned settings, and it will be automatically created.

Don't see any obvious issue; delete /config/umovies.cfg, then go into the share and reapply the settings.

Jul 27 12:46:05 Tower webgui: /boot/config/plugins/dynamix/dynamix.cfg corrupted or missing See if this file exists; if not, change a setting so that it gets created, e.g., a general disk utilization warning or temps; if it exists, delete it and recreate it.

You can try updating to 7.3.2 and then rerunning xfs_repair, but most likely it will be the same, if so, you can use a file recovery app, like UFS Explorer; the free trial should show what it can recover. P.S. in case you missed it, parity is failing.

Jul 27 09:55:02 BuellVault emhttpd: read SMART /dev/sdn Jul 27 09:55:51 BuellVault kernel: mce: [Hardware Error]: Machine check events logged Jul 27 09:55:52 BuellVault kernel: mce: [Hardware Error]: Machine check events logged The last couple of lines are MCEs, confirming a hardware issue, but if there's nothing on the log, it may be a trial and error situation; RAM, CPU and board would be my main suspects.

Please post the diagnostics. Also, did this happen out of the blue, or after an unclean shutdown or the disk getting disabled?

If the syslog server is running, post that log, if it's not, enable it and post it after the next crash.

Looks good for now; replacing the cables is a good idea to rule that out, if you notice any issues with Docker, recreate the Docker image.

Looks like you forgot both.

If the pool is now fixed but the GUI is out of sync, you can just reimport it (make sure you unmount it first if it was mounted manually) on main click on the first device for that pool and then "remove pool" back on main, create a new pool with the same name and 2 slots assign the pool devices, leave the filesystem set to auto start the array to import the pool